Technical Datasheet
GT-1040A Microwave Power Amplifier
10 MHz to 40 GHz
Broadband High-Power Instrumentation Amplifiers
34891 -Rev.A / US110718
Microwave Power Amplifier
Advanced Amplifier Technology
10 MHz to 40 GHz eliminates band switching, reduces cost and complexity
Solid-state technology for low noise, high reliability and long life
Ideal for R&D Lab, ATE Systems, Wireless Communications and Defense EW applications
The Giga-tronics GT-1040A Microwave Power Amplifier incorporates broadband MMIC-based architecture.
These state-of-the-art amplifiers are based on solid-state parallel MMIC design with exceptionally wide
bandwidth and high power. The unique circuit topology is highly reliable, with performance that excels where
extremes of bandwidth and power are demanded.
34891-Rev. A/ US110718
The Giga-tronics GT-1040A Microwave Power Amplifiers provide excellent pulse fidelity, low intermodulation
distortion, high linearity and superior gain flatness without the warm-up time, drift or aging issues of traveling
wave tube amplifiers (TWTA). They feature low noise figure, low harmonics and spurious content, and are
highly tolerant to load mismatch.
Microwave Power Amplifier
Advanced Amplifier Technology
The Giga-tronics GT-1040A Microwave Power Amplifiers offer linear high-power amplification across multi-octave bands. They
are ideal for testing in R&D Lab, ATE Systems, wireless communications applications and Defense EW systems. The 10 MHz to
40 GHz frequency range allows broadband testing without band switching or swapping narrow band amplifiers resulting in faster
and more accurate testing.
The amplifiers can be used in wireless communications and component testing wherever a highly linear amplifier is needed.
These microwave power amplifiers with excellent pulse fidelity are ideal for many Aerospace and Defense applications, including
EW, ECM, ECCM, radar and satellite system signal simulation and testing. The GT-1040A is an ideal ATE system building
block for boosting test signals to overcome cable and connector loss whenever long cable runs are needed in assembly bays,
environmental test chambers or field locations.
34891-Rev. A/ US110718
The amplifier nominally provides 20 dB of gain over the 10 MHz to 40 GHz frequency range. The GT-1040A can be paired with a
Giga-tronics 2440C 40 GHz Microwave Signal Generator or Giga-tronics 2540B 40 GHz Microwave Signal Generator, increasing
the overall output power while preserving the synthesizer’s fast switching speed, modulation, and high signal fidelity.
Microwave Power Amplifier
Technical Specifications
Frequency Range
10 MHz to 40 GHz
Output Power
Output power is specified as minimum saturated power into 50 Ohm load with +5 dBm input, at 23°C ± 5°C
Input power for normal operation should limited to +5 dBm maximum.
10 MHz to 500 MHz
+23 dBm (200 mW) nominal, +20 dBm (100 mW) minimum
0.5 to 26.5 GHz
+25 dBm (300 mW) nominal, +23 dBm (200 mW) minimum
26.5 to 40 GHz
+23 dBm (200 mW) nominal, +20 dBm (100 mW) minimum
Gain Flatness
34891-Rev. A/ US110718
Nominal gain is 20 dB, minimum gain > 15 dB.
Gain flatness is specified as maximum variation with -5 dBm input and 50 Ohm load.
10 MHz to 40 GHz
± 2.5 dB nominal, ±3.5 dB maximum
Microwave Power Amplifier
Technical Specifications
Input and Output VSWR
Input, 50 Ohms
2.0:1 nominal
Output, 50 Ohms
2.0:1 nominal
Additional Specifications
Unconditionally Stable
Maximum Load VSWR
Maximum Input Power
+17 dBm
Third Order Intercept
+30 dBm nominal
Harmonic Distortion*
< -30 dBc nominal
< -60 dBc nominal
Reverse Isolation
> 50 dB nominal
Noise Figure
< 8 dB nominal
* Note: Harmonics measured at +10 dBm output power. Spurious measured at -5 dBm input power level
Line Voltage
100 to 240 VAC, 47 to 440 Hz, Single Phase
Line Power
20 VA maximum
Operating Temperature
0°C to +50°C
Storage Temperature
-20°C to +75°C
2.5” H x 6.8” D x 7.0” W (64 mm H x 173 mm D x 178 mm W)
4.5 lbs (2 kg)
RF Connectors
2.92 mm (f)
34891-Rev. A/ US110718
General Specifications
Ordering Information
Giga-tronics has a network of RF and Microwave instrumentation sales engineers and a staff of factory support personnel to
help you find the best, most economical instrument for your specific applications. In addition to helping you select the best
instrument for your needs, our staff can provide quotations, assist you in placing orders, and do everything necessary to
ensure that your business transactions with Giga-tronics are handled efficiently.
Model Number
Frequency Range
Microwave Power Amplifier, 10 MHz to 40 GHz
Giga-tronics Support Services
At Giga-tronics, we understand the challenges you face. Our support services begin from the moment you call us. We help
you achieve both top-line growth and bottom-line efficiencies by working to identify your precise needs and implement smart
and result orientated solutions. We believe and commit ourselves in providing you with more than our superior test solutions.
For technical support, contact:
Tel: 1-800-726-GIGA (4442) or (925) 328-4669
All data is subject to change without notice. For the latest information on Giga-tronics products and applications, please visit
out website:
34891-Rev. A/ US110718
34891-Rev. A/ US110718
©2011 Giga-tronics Incorporated. All Rights Reserved. All trademarks are the property of their respective owners.
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