HP 8757 D, E Scalar Network Analyzer Technical Specifications

HP 8757D/E
Scalar Network Analyzers
Technical Specifications
10 MHz to 110 GHz
2
Accurate measurement of transmission and reflection
characteristics is a key requirement in your selection
of a scalar network analyzer. To help you achieve these
goals, Hewlett-Packard offers you a choice of microwave
scalar measurement solutions which provide an excellent balance of cost, system versatility, and
measurement precision.
Overview of features and differences
HP 8757E
• High resolution monochrome display
• Two display channels
• Three detector inputs
• Internal plotter/printer buffer
• +16 to –60 dBm dynamic range
• AC/DC detection modes
• 101 to 401 measurement points/trace
• Noise figure measurement display capability
• Cursor max and min search functions
• Compatible with the HP 85025 and 85026 series
detectors and the HP 85027 series directional bridges
HP 8757D
Includes all of the HP 8757E features, plus the following:
• High resolution color display
• Four display channels
• An optional fourth detector input (Option 001)
• An optional internal power calibrator (Option 002)
• Accurate power measurements with the HP 85037
series precision detectors
• External disk save/recall
• 101 to 1601 measurement points/trace
• Limit line testing (channels 1 and 2)
• Adaptive normalization
• Cursor search functions (max, min, n dB, BW)
Specifications describe the instrument’s warranted performance over
the temperature range 0 to 55°C (except where noted). Supplemental
characteristics are intended to provide information useful in applying
the instrument, by giving typical but non-warranted performance
parameters. These are denoted as “typical,” “nominal,” or “approximate.”
3
HP 8757D/E
scalar network analyzers
HP 8757D/E scalar network analyzers
The HP 8757D has four independent display channels
that process the signals from the HP 85037 series precision detectors (HP 8757D only), the HP 85025 and
85026 detectors, and the HP 85027 series directional
bridges for logarithmic display, in single channel or
ratio mode. Three (optionally four) detector inputs are
provided. The HP 8757E has two independent display
channels and three detector inputs.
Display
Horizontal resolution
The number of points (horizontal resolution) that can
be selected depends on the number of traces displayed.
Network Analyzer
Traces
Selectable Number of Points
HP 8757E
1, 2
101, 201, 401
HP 8757D
1
2
3, 4
101, 201, 401, 801, 1601
101, 201, 401, 801
101, 201, 401
Display modes
All analyzer display channels can display any one
of the detector inputs or any ratio combination of
detector inputs.
Log magnitude
dBm: single channel power measurement.
dB: relative power measurement (ratio or relative
to trace memory).
SWR
Relative measurements (normalized or ratio measurements) can be displayed in SWR. Channels 1 and 2
only: 401 points or fewer.
AUX voltage
The rear panel BNC input ADC IN can be measured
and displayed in volts (–10 to +10 volts). Typical maximum error is 60 mV.
Color settings (HP 8757D only)
Up to 8 operator-selectable colors are available for
CRT attributes, such as the grid, measurement traces,
and labels.
Sweep time
The minimum sweep time depends on the number of
traces displayed and the number of points selected.
Number
of
points
101
201
401
801
1601
Averaging
2, 4, 8, 16, 32, 64, 128, or 256 successive traces can
be averaged.
Smoothing
Provides a linear moving average of adjacent data
points. The smoothing aperture defines the trace width
(number of data points) to be averaged, and ranges from
0.1% to 20% of the trace width.
Normalization
Traces are stored and normalized with the highest
resolution, independent of display scale/division or offset.
With adaptive normalization on the HP 8757D, calibration data is interpolated when the frequency span
is decreased.
Limit lines (HP 8757D only)
Limit lines facilitate quick pass/fail decisions. Limits
can be any combination of flat or sloped lines or single
points up to 12 segments. They are only available for
channels 1 and 2, for traces with 401 points or fewer,
and can be stored in save/recall registers 1 through 4.
Internal save/recall registers
Up to 9 complete front panel states may be saved or
recalled. If the source (HP 8360 or 8370 series) is connected to the HP 8757 system interface, the front panel
states of both the network analyzer and source are saved.
Registers 1 through 4 store the instrument state and
the memory traces for channels 1 and 2. The memory
traces for channels 3 and 4 are not stored. Registers 5
through 9 only store the instrument state.
Display
mode
Scale
resolution
Display
range
Vertical
resolution
dBm
0.1 to 20 dB/div
(1/2/5 sequence)
–80 to +80 dBm
0.003 dB1
dB
0.1 to 20 dB/div
(1/2/5 sequence)
–90 to +90 dB
0.006 dB1
Normalized
ratio
measurements
0.1 to 20 dB/div
(1/2/5 sequence)
–180 to +180 dB
0.01 dB
SWR
0.02 to 10 units/div
(1/2/4 sequence)
1.0 to 37.0
0.01 at 1
0.1 at 10
0.27 at 30
AUX
Voltage
0.025 to 5 V/div
(1/2.5/5 sequence)
–10 to +10V
0.001V
1. 0.01 dB for display cursor
1 trace
Minimum sweep time (ms)
(log magnitude format)
2 traces
3 traces
4 traces
Modulation requirements
40
50
100
200
400
50
75
100
250
NA
70
100
200
NA
NA
Applies to the HP 85037 series precision detectors,
HP 85025/26 series detectors, and HP 85027 series
directional bridges in AC mode.
Square-wave amplitude modulation.
Frequency 27,778 Hz ±20 Hz.
≥30 dB on/off ratio.
45% to 55% symmetry.
60
90
150
NA
NA
4
HP 8757D/E
network analyzer (cont'd)
Rear panel connectors
HP-IB
Sweep voltage requirements (Sweep in)
Horizontal sweep voltage, normally provided by the
sweeper, from 0 to 10 volts.
Marker and blanking requirements (Pos z blank)
Blanking and marker signals are provided by the sweeper
through the “Pos z blank” input on the rear panel of the
HP 8757.
Voltage levels
Blanked: +5V typical
Unblanked: 0V typical
Marker: –4V typical
Active marker: –8V typical
Modulator drive
The modulator drive output of the HP 8757 scalar
analyzer provides the circuitry to drive the HP 8360/8370
series synthesized sweepers and the HP 11665B modulator. Modulation drive may be turned on and off via the
front panel or HP-IB. In the “off” state, the modulator
drive signal turns the HP 11665B fully on for minimum
insertion loss.
Frequency: 27,778 Hz ±12 Hz
Symmetry: 50% ±1%
Stop sweep
Used with the HP 8360 and 8370 series when controlled
by the HP 8757 system interface to stop the sweep at
band crossings and at the end of sweep.
ADC in
An input connector for auxiliary voltage input in the
–10 to +10 volt range. This voltage can be displayed (in
volts) on any channel.
Control 1 and control 2
These connectors provide digital output signals (TTL
open-collector) as a user convenience for driving other
peripheral equipment in an HP-IB controlled system.
Video outputs (HP 8757D only)
Used to drive an external color monitor that has the
following characteristics:
• Red, green, and blue (RGB) BNC inputs, sync on green
• 75 ohm input impedance
• 25.5 kHz horizontal scan rate
• 60 Hz vertical refresh rate
• 1 V p-p (typically 0.7 V= white; 0 V= black; –0.3 V = sync)
Interface
HP-IB operates according to IEEE 488-1978 and IEC-625
interface standards.
Interface function codes
SH1, AH1, T6, TE0, L4, LE0, SR1, RL1, PP0, DC1, DT0,
C0, E1.
Transfer formats
Data can be transferred either as ASCII strings or as
16-bit integers. Readings may be taken at a single
point, or an entire trace may be transferred at once.
Transfer speed
ASCII format, 401 point trace:
500 ms typical.
ASCII format, single point:
10 ms typical.
Binary format, 401 point trace:
30 ms typical.
Binary format, single point:
7 ms typical.
Programmable functions
All front panel functions except power on/off are programmable. The HP 8757D/E is compatible with all appropriate HP 8757A/C scalar analyzer programming codes.
User-accessible display graphics
HP-GL subset that allows user to display test setup
diagrams and operator instructions on the analyzer CRT.
Interrupts
HP-IB service interrupts (SRQs) are generated for the
following conditions:
• Front-panel key pressed
• Operation complete
• Illegal command
• Instrument self-test error
• Limit test failed
5
System interface
General information
The HP 8757 system interface is a dedicated HP-IB
port used exclusively by the HP 8757 to control and
extract information from a swept source, a digital plotter,
a printer, and a disk drive (HP 8757D only).
Compatible swept sources
The following swept sources are specifically made to
complement the HP 8757 system. With them, the HP 8757
is able to display start, stop and marker frequencies,
save and recall front panel states of both the sweeper
and the scalar analyzer, preset both instruments simultaneously, and alternately sweep two different frequency
or power ranges and display both simultaneously:
• HP 8360 series synthesized sweeper
• HP 8370 series synthesized sweeper
Printers
For a list of compatible printers, consult our printercompatibility guide Web page. Its URL location is
http://www.hp.com/go/pcg
Internal plotter/printer buffer
The HP-IB buffer speeds measurements by returning
the control to the analyzer while outputting data to a
plotter or printer. Output two channels (401 points
each) of information to the buffer in typically less than
5 seconds.
Disk interface (HP 8757D only)
The HP 8757D provides the capability to store and
retrieve the analyzer’s instrument state, measurement
data, and user accessible display graphics to and
from an external HP-IB disk drive that is compatible
with command subset CS/80. Data files are stored in
Hewlett-Packard’s standard LIF format and can be read
by a wide variety of computers, including the HP 9000
series 200 or 300. Files can be stored in binary or
ASCII format.
Recommended disk drive
HP 9122C dual 3.5 in disk drive (only available with
Option 802)
Temperature range
Operating: 0 to 55°C
Storage: –40 to 75°C
Power requirements
48 to 66 Hz, 100/120/220/240V ±10%, typically 155 VA.
Dimensions: 178 H x 425 W x 482 mm D
(7.0 x 16.75 x 19.0 in)
Weight: Net 22 kg (48 lb), Shipping: 28 kg (61.5 lb)
Power calibrator (HP 8757D Option 002 only)
The HP 8757D’s internal power calibrator provides a
50 MHz reference standard for characterizing the absolute power accuracy and dynamic power accuracy of the
HP 85037 series precision detectors.
Frequency: 50 MHz ±0.2 MHz
Output power: (25 ±5°C)
Range: +20 to –50 dBm
Accuracy at 0 dBm: ±0.05 dB
Linearity: (over any 10 dB range)
±0.08 dB (+20 to +10 dBm)
±0.04 dB (+10 to –30 dBm)
±0.06 dB (–30 to –50 dBm)
SWR: ≤1.05
Modes of operation
DC Mode (unmodulated)
AC Mode (modulated at 27,778 Hz ±12 Hz)
Connector: type-N (f)
Accessory included
A type-N (m) to 3.5-mm (f) adapter is provided to allow
calibration of the HP 85037B (3.5 mm) precision detector.
Ordering information
HP 8757D scalar network analyzer
Option 001: adds fourth detector input
Option 002: adds internal power calibrator
Option 802: adds an HP 9122C dual 3.5 inch disk drive
and HP 10833A HP-IB cable.
HP 8757D/E options
Option 1BN: MIL-STD 45662A certificate of calibration
Option 1BP: MIL-STD 45662A certificate of calibration
with data
6
System
accuracy
Transmission measurement accuracy
Absolute power measurement accuracy
Transmission loss or gain measurements are made relative
to a 0 dB reference point established at calibration.
This specification is useful for determining the accuracy
of power measurements in dBm when using the HP 85037
series precision detectors or the HP 85025 series
detectors in DC mode.
Transmission measurement uncertainty
= dynamic power accuracy + mismatch uncertainty
Dynamic power accuracy is the measurement uncertainty
due to the change in power level between calibration
and the measurement. Mismatch uncertainty is the
uncertainty due to reflections in the measurement setup.
The frequency response errors of the source, detectors,
bridge, and power splitter are removed via calibration.
Transmission measurement uncertainty examples
Assumptions:
• Measurement frequency = 10 GHz
• DUT input/output SWR = 1.5
• Ratio measurement
Change in power after calibration
<30 dB (+0 to –30 dBm range)
Absolute power uncertainty =
absolute power accuracy at 50 MHz
+ frequency response + mismatch uncertainty
Absolute power measurement uncertainty examples
Assumptions:
• Measurement frequency = 10 GHz
• DUT input/output SWR = 1.5
Power = +10 dBm
Uncertainty component
HP 85037B
precision detector
HP 85025E
detector
Absolute power accuracy
at 50 MHz (±dB)
Frequency response (±dB)
Mismatch (±dB)
0.11
0.18
0.18
0.50
0.50
0.10
Total (±dB)
0.47
1.10
HP 85037B
precision detector
HP 85025E
detector
Absolute power accuracy
at 50 MHz (±dB)
Frequency response (±dB)
Mismatch (±dB)
0.11
0.18
0.18
0.40
0.50
0.10
Total (±dB)
0.47
1.00
HP 85037B
precision detector
HP 85025E
detector
Absolute power accuracy
at 50 MHz (±dB)
Frequency response (±dB)
Mismatch (±dB)
0.85
0.18
0.18
1.30
0.50
0.10
Total (±dB)
1.21
1.90
Uncertainty component
HP 85037B
precision detector
HP 85025E
detector
Dynamic accuracy (±dB)
0.11
0.40
Mismatch (±dB)
0.45
0.33
Power = 0 dBm
Total (±dB)
0.56
0.73
Uncertainty component
Change in power after calibration
60 dB (+6 to –55 dBm range)
Uncertainty component
HP 85037B
precision detector
HP 85025E
detector
Dynamic accuracy (±dB)
0.96
2.00
Mismatch (±dB)
0.45
0.33
Total (±dB)
1.41
2.33
Power = –50 dBm
Uncertainty component
7
Precision detector vs. power sensor
absolute power measurement accuracy
Accuracy terms differ depending on the test equipment
used to make absolute power measurements. The following table simplifies and compares the accuracy terms of
an HP 8757 system (using an HP 85037 series precision
detector) and a power meter (using a power sensor). A
measurement accuracy example is also provided.
Scalar terms
Equivalent power meter/sensor terms
Absolute power
accuracy at 50 MHz
Power reference uncertainty
Instrument linearity
Zero set
Noise
Frequency response
Sensor calibration factor uncertainty
Mismatch
Mismatch
Reflection measurement accuracy
Uncertainties due to calibration error and the frequency
response of the source, detectors, and bridges are removed
via open/short averaging. The remaining uncertainties
are primarily the sum of directivity uncertainty, effective
source match uncertainty, and dynamic power accuracy.
As shown in the graphs below, directivity is the dominant error term when measuring small reflected signals
(high return loss) and source match is dominant when
measuring large reflected signals (low return loss).
Effective source match
versus reflection uncertainty
Scalar analyzer vs power meter
Absolute power measurement uncertainty examples
Assumptions:
• Measurement frequency = 10 GHz
• DUT input/output SWR = 1.5
• Power measurement range = +10 to –20 dBm
Uncertainty component
(see above table for
equivalent power meter terms)
HP 8757D opt 002/
85037B
HP EPM-441A
8485A
Directivity versus reflection uncertainty
Absolute power accuracy
at 50 MHz (±dB)
Frequency response (±dB)
Mismatch (±dB)
0.11
0.18
0.18
0.09
0.09
0.12
Total (±dB)
0.47
0.30
Example calculation
The following example shows how to find the uncertainty
(excluding dynamic accuracy), in measuring a 14-dB
return loss (SWR = 1.5) with an HP 85027A directional
bridge at 10 GHz (directivity = 40 dB, test port match =
1.25 SWR).
Uncertainty Component
Uncertainty
Source match error
Directivity error
approximately ±0.2 dB
approximately ±0.4 dB
Total uncertainty
approximately ±0.6 dB
8
System
accessories
Detectors
HP 85025 and 85026 series detectors (AC/DC)
HP 85037 series precision detectors (AC/DC)
The HP 85025 and 85026 series detectors are designed
specifically for operation with the HP 8757 scalar network
analyzer and are not compatible with either the HP 8756
or the 8755. The HP 85025/26 detectors may be used in
either AC or DC detection modes.
The HP 85037 series precision detectors are designed
specifically for operation with the HP 8757D scalar network analyzer and are not compatible with the HP 8757A/E,
8756, or 8755 scalar network analyzers. These detectors
may be used in either AC or DC detection modes. For
improved power measurement accuracy versus frequency,
each HP 85037 series precision detector includes detector specific frequency response data, stored in an internal
EEPROM, which is automatically read by the HP 8757D.
When used in conjunction with the HP 8757D’s internal
power calibrator (Option 002), these detectors provide
the maximum absolute power measurement accuracy.
General information—coaxial detectors
Impedance: 50 ohms nominal
Maximum input power: +20 dBm (100 mW)
Maximum input voltage: 10 VDC
Dimensions: Cable length is 1.22 m (48 in.)
Weight: Net 0.24 kg (0.5 lb), Shipping 1.0 kg (2.2 lb)
Detector adapters
The HP 85025C detector adapters match the scalar
analyzer display to most standard crystal, silicon,
and gallium arsenide detectors. This enables the user
to operate up to 110 GHz with the HP 8757. The
HP 85025C detector adapter is designed for use with
the HP 8757 only, and can operate in either AC or DC
detection modes.
Maximum measurable input: ±3V peak
Maximum allowable input: ±10V peak
Connector: SMA (m)
Precision Detector Summary, HP 85037 Series1
For use with the HP 8757D in either AC or DC detection modes
Model
Frequency
Range
Connector
Type
Dynamic
Range
Frequency
Return
Loss
Frequency
Response 3
HP 85037A
10 MHz–18 GHz
Type-N (m)
7 mm2
AC mode +20 to –55 dBm
DC mode +20 to –50 dBm
0.01–0.04 GHz
0.04–18 GHz
10 dB
20 dB
±0.35 dB
±0.18 dB
HP 85037B
10 MHz–26.5 GHz
3.5 mm (m)
AC mode +20 to –55 dBm
DC mode +20 to –50 dBm
0.01–0.04 GHz
0.04–18 GHz
18–26.5 GHz
10 dB
20 dB
18 dB
±0.35 dB
±0.18 dB
±0.22 dB
Model
HP 85037A/B
Power
(50 MHz)
20 dBm
10 dBm
– 30 dBm
– 40 dBm
– 50 dBm
– 55 dBm
Dynamic Accuracy 4,5
Corrected
Default
Absolute Accuracy 4,6
Corrected
Default
±0.25 dB
±0.11 dB
±0.11 dB
±0.40 dB
±0.85 dB
±0.85 dB
±0.25 dB
±0.11 dB
±0.11 dB
±0.40 dB
±0.85 dB
————
±0.40 dB
±0.40 dB
±0.40 dB
±0.80 dB
±1.30 dB
±1.30 dB
±0.40 dB
±0.40 dB
±0.40 dB
±0.80 dB
±1.30 dB
————
Temperature coefficient of linearity: 0.01 dB/°C temperature change after calibration
1. The HP 85037A/B specifications are only applicable when used with the HP 8757D scalar
network analyzer.
2. Option 001 changes to 7 mm connector.
3. –10 dBm, 25 ±5°C
4. The corrected specifications apply after a calibration via the HP 8757D Option 002 internal
power calibrator. The default specifications apply when the calibrator is not used. Power
calibrator uncertainty is included in the HP 85037A/B corrected specifications.
5. Dynamic accuracy refers to measurement accuracy as power varies (in dB) from a 0 dBm
reference. 25 ±5°C, 50 MHz, calibration and measurement at the same temperature.
6. DC mode, 25 ±5°C, calibration and measurement at the same temperature.
9
Coaxial Detector Summary, HP 85025 Series
For use with the HP 8757 in either AC or DC detection modes
Model
Frequency
Range
Connector
Type
Dynamic
Range
Frequency
Return
Loss
Frequency
Response2
HP 85025A5
10 MHz–
18 GHz
Type-N (m)
AC mode
+16 to –55 dBm
DC mode
+16 to –50 dBm
0.01–0.04 GHz
0.04–4 GHz
4–18 GHz
10 dB
20 dB
17 dB
±0.8 dB
±0.5 dB
±0.5 dB
7 mm1
Power
(50 MHz)
Dynamic
Accuracy3
Absolute
Accuracy4
16 dBm
6 dBm
–35 dBm
–50 dBm
–55 dBm
±0.8 dB
±0.4 dB
±0.4 dB
±1.3 dB
±1.6 dB
±0.8 dB
±0.4 dB
±0.4 dB
±1.3 dB
———-
HP 85025B5
10 MHz–
26.5 GHz
3.5 mm (m)
AC mode
+16 to –55 dBm
DC mode
+16 to –50 dBm
0.01–0.04 GHz
0.04–4 GHz
4–18 GHz
18–26.5 GHz
10 dB
20 dB
17 dB
12 dB
±0.8 dB
±0.5 dB
±0.5 dB
±2.0 dB
16 dBm
6 dBm
–35 dBm
–50 dBm
–55 dBm
±0.8 dB
±0.4 dB
±0.4 dB
±1.3 dB
±1.6 dB
±0.8 dB
±0.4 dB
±0.4 dB
±1.3 dB
———-
HP 85025D5
10 MHz–
50 GHz
2.4 mm (m)
AC mode
+16 to –55 dBm
DC mode
+16 to –50 dBm
0.01–0.1 GHz
0.1–20 GHz
20– 26.5 GHz
26.5–40 GHz
40–50 GHz
10 dB
20 dB
20 dB
15 dB
9 dB
±0.8 dB
±0.5 dB
±1.0 dB
±2.5 dB
±3.0 dB
16 dBm
6 dBm
–35 dBm
–50 dBm
–55 dBm
±1.0 dB
±0.4 dB
±0.4 dB
±1.3 dB
±1.6 dB
±1.0 dB
±0.4 dB
±0.4 dB
±1.3 dB
———-
HP 85025E5
10 MHz–
26.5 GHz
3.5 mm (m)
AC mode
+16 to –55 dBm
DC mode
+16 to –50 dBm
0.01–0.1 GHz
0.1–18 GHz
18–25 GHz
25–26.5 GHz
10 dB
25 dB
25 dB
23 dB
±0.8 dB
±0.5 dB
±0.5 dB
±1.4 dB
16 dBm
6 dBm
–35 dBm
–50 dBm
–55 dBm
±1.0 dB
±0.4 dB
±0.4 dB
±1.3 dB
±1.6 dB
±1.0 dB
±0.4 dB
±0.4 dB
±1.3 dB
———-
Waveguide Detectors and Detector Adapters Summary
For use with the HP 8757 only in either AC or DC detection modes
Model
Frequency
Range
Connector
Type
Dynamic
Range
Return
Loss
Frequency
Response
Dynamic
Accuracy
HP R85026A5
26.5–
40 GHz
WR-28
+10 to –50 dBm (AC mode)
+10 to –45 dBm (DC mode)
12 dB
±1.5 dB
±(0.3 dB + 0.03 dB/dB)
HP Q85026A5
33–
50 GHz
WR-22
+10 to –50 dBm (AC mode)
+10 to –45 dBm (DC mode)
12 dB
±2.0 dB
±(0.3 dB + 0.03 dB/dB)
HP U85026A5
40–
60 GHz
WR-19
+10 to –50 dBm (AC mode)
+10 to –45 dBm (DC mode)
12 dB
±2.0 dB
±(0.3 dB + 0.03 dB/dB)
HP 85025C
Opt K577
50–
75 GHz
WR-15
+10 to –45 dBm (typical)
9.5 dB
(typical)
HP 85025C
Opt K717
75–
110 GHz
WR-10
+10 to –45 dBm (typical)
9.5 dB
(typical)
HP 85025C5
6
SMA (m)
6
6
6
6
1. Option 001 changes to 7 mm connector.
2. –10 dBm, 25 ±5°C
3. Dynamic accuracy refers to measurement accuracy as power varies (in dB) from a
0 dBm reference. 25 ±5°C, 50 MHz.
4. DC mode, 25 ±5°C.
5. The HP 85025 and 85026 series detectors and the HP 85025C detector adapter require
HP 8757A firmware revision 2.0 or higher. To upgrade previous revisions, order the
HP 11614A firmware enhancement.
6. Depends on the detector.
7. Must be used with the HP 85025C detector adapter.
10
System
accessories (cont'd)
Directional bridges
HP 85027 series directional bridges (AC/DC)
The HP 85027 series directional bridges are designed to
operate with either the HP 8757 in AC or DC detection
modes or with the HP 8756 or 8755 in AC detection
mode. These bridges offer high directivity, excellent test
port match, and a measurement range of up to 50 GHz
in coax.
General information—directional bridges
Dynamic power accuracy
(50 MHz, 25 ±5°C, +7 dBm input)
Typical insertion loss
6.5 dB at 10.0 MHz
8.0 dB at 18.0 GHz
10.0 dB at 26.5 GHz
11.0 dB at 40.0 GHz
13.0 dB at 50.0 GHz
Typical minimum input power for a
40 dB return loss measurement at 18 GHz: +2 dBm
Dimensions: 26 H x 124 W x 118 mm D
(1.0 x 4.9 x 4.4 in)
Weight: Net 0.5 kg (1.2 lb), Shipping 2.3 kg, (5 lb)
Accessories included with directional bridges:
HP 85027A
7 mm open/short
Type-N (m)–(m) adapter
HP 85027B
3.5 mm (m) open/short
3.5 mm (m)–(m) adapter
3.5 mm (m)–(f) adapter
HP 85027C
Type-N (m) short
Type-N (m) shielded open
Type-N (m)–(m) adapter
HP 85027D
2.4 mm (f) open
2.4 mm (f) short
HP 85027E
3.5 mm (f) open/short
3.5 mm (f)–(f) adapter
3.5 mm (f)–(m) adapter
Directional Bridge Summary
For use with the HP 8757 in AC or DC detection mode
or with the HP 8756 or 8755 in AC detection mode only
Model
Frequency
Range
Nominal
Impedance
Input
Connector
Test Port
Connector
Frequency
Directivity
Frequency
Test Port
Match
HP 85027A
10 MHz–
18 GHz
50 ohms
Type-N (f)
7 mm
0.01–18 GHz
40 dB
0.01–8.4 GHz
8.4–12.4 GHz
12.4–18 GHz
<1.15 SWR
<1.25 SWR
<1.43 SWR
HP 85027B
10 MHz–
26.5 GHz
50 ohms
3.5 mm (f)
3.5 mm (f)
0.01–20 GHz
20–26.5 GHz
40 dB
36 dB
0.01–8.4 GHz
8.4–20 GHz
20–26.5 GHz
<1.15 SWR
<1.43 SWR
<1.78 SWR
HP 85027C
10 MHz–
18 GHz
50 ohms
Type-N (f)
Type-N (f)
0.01–12.4 GHz
12.4–18 GHz
36 dB
34 dB
0.01–8.4 GHz
8.4–12.4 GHz
12.4–18 GHz
<1.15 SWR
<1.25 SWR
<1.43 SWR
HP 85027D
10 MHz–
50 GHz
50 ohms
2.4 mm (f)
2.4 mm (m)
0.01–26.5 GHz
35 dB
26.5–40 GHz
40–50 GHz
30 dB
25 dB
0.01–16 GHz
16–30 GHz
30–40 GHz
40–50 GHz typically
<1.18 SWR
<1.27 SWR
<1.40 SWR
<1.85 SWR
0.01 –20 GHz
20–26.5 GHz
40 dB
36 dB
0.01 - 8.4 GHz
8.4–20 GHz
20–26.5 GHz
<1.15 SWR
<1.43 SWR
<1.78 SWR
HP 85027E
10 MHz–
26.5 GHz
50 ohms
3.5 mm (f)
3.5 mm (m)
11
Power splitters
The HP 11667 series power splitters are two-resistor
splitters recommended for external source leveling or
for ratio measurement applications.
General information
Impedance: 50 ohms nominal
Dimensions: 42 H x 45 W x 18 mm D (1.6 x 1.8 x 0.7 in)
Weight: Net 0.14 kg (0.3 lb), Shipping 0.45 kg (1.0 lb)
HP 11679A/B extension cables
These cables extend the distance between the scalar
network analyzer and the detector or bridge to a maximum
of 200 feet without degradation of performance.
HP 11679A 7.6 m (25 ft) extension cable
HP 11679B 61 m (200 ft) extension cable
HP 11665B modulator
General information
Impedance: 50 ohms nominal
Maximum input power: +27 dBm
Dimensions: 46 H x 52 W x 21 mm D (1.8 x 2.0 x 0.8 in).
Weight: Net 0.14 kg (0.3 lb), Shipping 0.22 kg (0.5 lb)
Power dividers
The HP 11636 series power dividers are three-resistor
splitters intended for direct power dividing applications
such as transmission line fault location. The HP 11636
series can also be used as a power combiner.
The HP 11665B modulates test signals with the 27.8 kHz
modulation drive signal from the scalar network analyzer.
Frequency range: 15 MHz to 18 GHz
Insertion loss and return loss
Frequency
Return
Loss
Insertion Loss
ON (+50mA)
OFF (–50mA)
15 MHz to 40 MHz
40 MHz to 4 GHz
4 GHz to 8 GHz
8 GHz to 12.4 GHz
12.4 GHz to 18 GHz
>10 dB
>15 dB
>12 dB
>8 dB
>8 dB
<7.0 dB
<3.2 dB
<3.8 dB
<4.3 dB
<5.0 dB
>35 dB
>35 dB
>40 dB
>45 dB
>45 dB
Maximum input: +24 dBm
Connectors: Input: type-N (f), Output: type-N (m)
Weight: Net: 0.17 kg (0.38 lbs), Shipping: 0.9 kg (2 lbs)
Power splitters
Model
Frequency
Range
Input
Connector
Output
Connectors
Frequency
Insertion Loss
(typical)
Equivalent
Output Match
Output
Tracking
HP 11667A
DC to 18 GHz
Type-N (f)1
Type-N (f)
DC to 4 GHz
4 to 8 GHz
8 to 18 GHz
6.6 dB
7.0 dB
7.8 dB
1.10 SWR
1.20 SWR
1.33 SWR
0.15 dB
0.20 dB
0.25 dB
HP 11667B
DC to 26.5 GHz
3.5 mm (f)
3.5 mm (f)
DC to 8 GHz
8 to 18 GHz
18 to 26.5 GHz
6.5 dB
7.0 dB
7.3 dB
1.22 SWR
1.22 SWR
1.22 SWR
0.25 dB
0.25 dB
0.40 dB
HP 11667C
DC to 50 GHz
2.4 mm (f)
2.4 mm (f)
DC to 18 GHz
18 to 26.5 GHz
26.5 to 40 GHz
40 to 50 GHz
6.0 dB
7.0 dB
8.0 dB
8.5 dB
1.29 SWR
1.20 SWR
1.50 SWR
1.65 SWR (typical)
0.30 dB
0.35 dB
0.40 dB
0.40 dB
Power dividers
Model
Frequency
Range
Input
Connector
Output
Connectors
Frequency
Output
Match
Output
Tracking
HP 11636A
DC to 18 GHz
Type-N (m)
Type-N (f)
DC to 4 GHz
4 to 10 GHz
10 to 18 GHz
1.25 SWR
1.25 SWR
1.35 SWR
0.20 dB
0.40 dB
0.50 dB
HP 11636B
DC to 26.5 GHz
3.5 mm (f)
3.5 mm (f)
DC to 10 GHz
10 to 18 GHz
18 to 26.5 GHz
1.22 SWR
1.29 SWR
1.29 SWR
0.25 dB
0.50 dB
0.50 dB
1. Option 001 changes the input connector to type-N (m)
12
System
accessories (cont'd)
HP 85022A system cable kit
The HP 85022A contains the BNC and HP-IB cables
needed to connect a source to the HP 8757.
Contents
HP-IB cable, 100 cm (3.3 ft.), 3 each
50 ohm BNC (m) cable, 61 cm (2 ft.), 3 each
50 ohm BNC (m) cable, 122 cm (4 ft.)
Weight: Net: 0.5 kg (1.2 lbs.), Shipping: 1.2 kg (2.9 lbs)
HP 11613B calibrator
The HP 11613B is a dedicated transfer standard for
Lcalibration of the HP 8757. The HP 11613B provides the
standard, a 27.778 kHz source and a series of precision
attenuators. The calibrator includes software (3.5 inch
format) that operates on an HP 9000 series 200 or
300 computer and the HP BASIC operating system
(HP BASIC 3.0 or higher). The software verifies (and
adjusts if necessary) the internal calibration parameters
stored in the nonvolatile memory of the HP 8757. All
HP 8757 detector inputs can be calibrated in a matter
of minutes. Re-calibration of the HP 11613B is
recommended every two years.
Memory requirement: 0.5 Mbyte
Outputs
The 5-pin cable (1.22 m) mates with the detector inputs
of the HP 8757. The lines in this cable transfer the
squarewave signal to the HP 8757, provide power for
the HP 11613B (from the HP 8757 supply), and program
the HP 11613B’s internal attenuators.
Dimensions: 40 H x 185 W x 203 mm D
(1.5 x 7.3 x 8.0 in)
Cable length: 1.22 m (48 in)
Weight: Net: 0.91 kg (2 lbs), Shipping: 2.3kg (5 lbs)
Software
Amplifier test software
HP part number 86399-10001
This amplifier test software automates basic amplifier
measurements of gain, gain compression, return loss,
and standing wave ratio. The software is completely
menu driven for simplicity and ease of use. 3.5 inch
inch format is provided.
13
Support products
and literature
Service and support products
Literature guide
HP 8757D/E Option W30
Three additional years return-to-HP service
(where available)
In the event of a failure, HP will repair these products
for three years after delivery. (The first year is under
standard warranty; the second and third are under this
extended support program.) All parts, labor, post-repair
adjustments, and verification are included. (Periodic
maintenance and scheduled “calibrations” are
not included.)
HP 8757D/E Option W32
3-year calibration
Option W32 provides three years of return-to-HP
calibration service. Includes scheduled calibration at
the manufacturer’s calibration cycle and calibration
after repair performed by Hewlett-Packard.
HP 8757D Option 1BN
MIL-STD 45662A Certificate of calibration
Certificate of calibration in full compliance with
MIL-STD 45662A.
HP 8757D/E Option 1BP
MIL-STD 45662A certificate of calibration with data
Certificate of calibration in full compliance with
MIL-STD 45662A supplied with calibration data. Contact
your local HP sales office for additional service and
support options.
HP 8757D/E scalar network analyzers,
Brochure, literature number 5091-2469E
HP 8757D/E scalar network analyzers,
Technical Specification, literature number 5091-2471E
Improving network analyzer measurements
of frequency-translating devices,
Application Note 1287-7, literature number 5966-3318E
Network analyzer measurements:
filter and amplifier examples,
Application Note 1287-4, literature number 5965-7710E
Millimeter wave measurements; V & W band scalar
measurements using the scalar network analyzer,
Product Note 8757-2, literature number 5964-8380
Microwave component measurements; amplifier
measurements using the scalar network analyzer,
Product Note 345-1, literature number 5954-1599
Extended dynamic range of scalar transmission
measurements using the HP 8757A, HP 8756A,
and HP 8755C scalar network analyzers,
Application Note 345-1, literature number 5963-8882
Measuring voltage-controlled devices
with the HP 8757A scalar network analyzer,
Product Note 8757-5, literature number 5964-1537
For more information
about Hewlett-Packard test
and measure-ment products,
applications, services, and for
a current sales office listing,
visit our web site,
http://www.hp.com/go/tmdir.
You can also contact one of the
following centers and ask for
a test and measurement sales
representative.
United States:
Hewlett-Packard Company
Test and Measurement Call Center
P.O. Box 4026
Englewood, CO 80155-4026
1 800 452 4844
Canada:
Hewlett-Packard Canada Ltd.
5150 Spectrum Way
Mississauga, Ontario
L4W 5G1
(905) 206 4725
Europe:
Hewlett-Packard
European Marketing Centre
P.O. Box 999
1180 AZ Amstelveen
The Netherlands
(31 20) 547 9900
Japan:
Hewlett-Packard Japan Ltd.
Measurement Assistance Center
9-1, Takakura-Cho, Hachioji-Shi,
Tokyo 192, Japan
Tel: (81) 426 56 7832
Fax: (81) 426 56 7840
Latin America:
Hewlett-Packard
Latin American Region Headquarters
5200 Blue Lagoon Drive, 9th Floor
Miami, Florida 33126, U.S.A.
Tel: (305) 267-4245
(305) 267-4220
Fax: (305) 267-4288
Australia/New Zealand:
Hewlett-Packard Australia Ltd.
31-41 Joseph Street
Blackburn, Victoria 3130, Australia
1 800 629 485
Asia Pacific:
Hewlett-Packard Asia Pacific Ltd.
17-21/F Shell Tower, Times Square,
1 Matheson Street, Causeway Bay,
Hong Kong
Tel: (852) 2599 7777
Fax: (852) 2506 9285
Printed on recycled paper
Data Subject to Change
Copyright © 1998
Hewlett-Packard Company
Printed in U.S.A. 6/98
5091-2471E
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