Fractus Media+™
Ultra Wideband (UWB)
Chip Antenna
Antenna Part Number:
FR05-S1-P-0-107
Any update on new patents linked to this product will appear in http://www.fractus.com/index.php/fractus/patents
All information contained within this document is property of Fractus and is subject to change without prior
notice. Information is provided “as is” and without warranties. It is prohibited to copy or reproduce this
information without prior approval.
Fractus is an ISO 9001:2008 certified company. All our antennas are lead-free and RoHS compliant.
July 2015
Page 1
1999-2015 © FRACTUS, S.A.
TABLE OF CONTENTS
1. ANTENNA DESCRIPTION ______________________________________________________ 3
2. QUICK REFERENCE GUIDE _____________________________________________________ 3
3. ELECTRICAL PERFORMANCE ___________________________________________________ 4
3.1. FRACTUS EVALUATION BOARD ______________________________________________ 4
3.2. VSWR AND EFFICIENCY ____________________________________________________ 4
3.3. RADIATION PATTERNS, GAIN AND EFFICIENCY _________________________________ 5
3.4. CAPABILITIES AND MEASUREMENT SYSTEMS ___________________________________ 6
4. MECHANICAL CHARACTERISTICS _______________________________________________ 7
4.1. DIMENSIONS, TOLERANCES & MATERIALS _____________________________________ 7
4.2. COLOUR RANGE FOR THE INK _______________________________________________ 7
4.3. ANTENNA FOOTPRINT (as used in the evaluation board) __________________________ 8
5. MATCHING NETWORK ________________________________________________________ 8
6. ASSEMBLY PROCESS _________________________________________________________ 9
7. PACKAGING _______________________________________________________________ 11
July 2015
Page 2
1999-2015 © FRACTUS, S.A.
1. ANTENNA DESCRIPTION
Fractus® Media+ UWB chip antenna is a high-performance, cost-effective antenna designed to meet the
requirements of reference designers, OEMs and ODMs considering the Multiband OFDM alliance (MBOA)
recommendations for Ultra Wideband devices.
The electrical and mechanical characteristics of this small SMD monopole chip antenna ensures design
flexibility and optimal performance in devices such as, but not limited to:

Wireless USB (W-USB) dongles

W-USB enabled devices: digital cameras and video recorders, PC Peripherals, beamers, Mobile
Phones, etc...
10.0 mm
0.8 mm
10.0 mm
BOTTOM
TOP
BENEFITS
APPLICATIONS



UWB Devices
Modules
Handsets




High efficiency
Cost-effective
Small size
Easy to use (pick and place)
2. QUICK REFERENCE GUIDE
Technical Features
Frequency Range
3.1 – 5 GHz
Average Efficiency
84.0 %
Peak Gain
Radiation Pattern
Flatness
3.5 dBi
Omnidirectional
2 dB gain variation
VSWR
<2:1
Weight
0.2 g
Temperature
Impedance
Dimensions (L x W x H)
Please contact info@fractus.com if you
require additional information on antenna
integration or optimisation on your PCB.
-40 to 85 ºC
FRACTUS S.A.
www.fractus.com
Tel: +34 935442690
Fax: +34 935442691
50 Ω
10.0 mm x 10.0 mm x 0.8 mm
Table 1 - Technical Features. Measures from the evaluation board
(36.5 mm x 20.0 mm x 0.8 mm PCB). See picture in page 5.
July 2015
Page 3
1999-2015 © FRACTUS, S.A.
3. ELECTRICAL PERFORMANCE
3.1. FRACTUS EVALUATION BOARD
The configuration used in testing the Media+ UWB chip antenna is displayed in Figure 1.
A
D
B
Fractus Media+
UWB Chip Antenna
50 Ohms transmission line
Ground Plane
SMA
Connector
mm
A
23.9
B
20.0
C
36.5
D
10.0
E
12.0
Tolerance: ±0.2mm
C
E
Measure
Material: The evaluation board is built
on FR4 substrate. Thickness is 0.8 mm
Antenna
Clearance
Figure 1 – Fractus Media+ UWB chip Antenna.
See picture in page 5
3.2. VSWR AND EFFICIENCY
Graph 1 - VSWR (Voltage Standing Wave Ratio) and Efficiency (%) vs. Frequency
(GHz)
July 2015
Page 4
1999-2015 © FRACTUS, S.A.
3.3. RADIATION PATTERNS, GAIN AND EFFICIENCY
Orientation: Antenna in Plane ZY
θ=90º(3.1GHz, 4GHz, 5GHz) Plane XY
φ=90º(3.1GHz, 4GHz, 5GHz) Plane YZ
φ=0º (3.1GHz, 4GHz, 5GHz) Plane XZ
Gain
Efficiency
Peak Gain
3.5 dBi
Average Gain across the band
2.6 dBi
Gain Flatness (horizontal plane)
< 2 dB
Peak Efficiency
92.0 %
Average Efficiency across the band
84.0 %
Efficiency Range across the band
77.0 % - 92.0 %
Table 2 – Antenna Gain and Efficiency within the 3.1 to 5 GHz bandwidth. Measures made in the evaluation
board and in the Satimo STARGATE 32 anechoic chamber.
July 2015
Page 5
1999-2015 © FRACTUS, S.A.
3.4. CAPABILITIES AND MEASUREMENT SYSTEMS
Fractus specialises in designing and manufacturing optimised antennas for wireless applications and providing
our clients with RF expertise. We offer turn-key antenna products and antenna integration support to
minimise your time requirement and maximize your return on investment during your product development
efforts. We also provide our clients with the opportunity to leverage our in-house testing and measurement
facilities to obtain accurate results quickly and efficiently.
0
Le ft Ante nna
Rig ht Ante nna
Is o latio n
-2
-4
-6
Re turn Lo s s (dB)
VSWR
&
S Parameters
-8
VSWR=2
-10
-12
-14
-16
-18
Agilent E5071B
-20
2
2.5
3
3.5
4
4.5
Fre que nc y (GHz)
0
5
5.5
6
5
330
0
30
-5
Radiation
Pattern
&
Efficiency
-10
300
60
-15
-20
-25
-30
270
90
240
120
f=5350MHz
210
SATIMO’s STARGATE 32
150
180
Anechoic and semi-anechoic chambers and full equipped in-house lab
July 2015
Page 6
1999-2015 © FRACTUS, S.A.
4. MECHANICAL CHARACTERISTICS
4.1. DIMENSIONS, TOLERANCES & MATERIALS
C
B
A
C
Note: all the antenna pads
(feed pad and mounting
pads) have the same
dimensions.
A
E
D
BOTTOM
TOP
Figure 2 – Antenna Dimensions and Tolerances
Measure
mm
10  0.2
Measure
D
A
mm
5  0.2
B
0.8  0.2
E
1.5  0.1
C
1.5  0.1
The white circle located on the top side of the antenna
indicates the feed pad.
Fractus Media+ UWB chip antenna is compliant with the restriction of the use of hazardous substances
(RoHS).
The RoHS certificate can be downloaded from http://www.fractus.com/index.php/fractus/documentation
4.2. COLOUR RANGE FOR THE INK
The next figure shows the range of the colours in the antenna:
Acceptable colour range
July 2015
Page 7
1999-2015 © FRACTUS, S.A.
4.3. ANTENNA FOOTPRINT (as used in the evaluation board)
This antenna footprint applies for the reference evaluation board described in page 4 of this User Manual.
Measure
mm
A
1.9
B
6.8
C
0.3
D
E
6.0
4.5
F
2.8
G
0.5
Tolerance: ±0.2mm
Figure 3 – Antenna Footprint Details
Other PCB form factors and configurations may require a different feeding configuration, feeding line
dimensions and clearance areas. If you require support for the integration of the antenna in your design,
please contact info@fractus.com
5. MATCHING NETWORK
The specs of a Fractus standard antenna are measured in their evaluation board, which is an ideal case. In a
real design, components nearby the antenna, LCD’s, batteries, covers, connectors, etc affect the antenna
performance. This is the reason why it is highly recommended to place 0402 pads for a PI matching network
as close as possible to the antenna feeding point. Do it in the ground plane area, not in the clearance area.
This is a degree of freedom to tune the antenna once the design is finished and taking into account all
elements of the system (batteries, displays, covers, etc).
July 2015
Page 8
1999-2015 © FRACTUS, S.A.
6. ASSEMBLY PROCESS
Figure 4 shows the back and front view of the Fractus Media+ UWB chip antenna and indicates the location
of the feeding point and the mounting pads:
Mounting Pads (2, 3): solder the antenna mounting pads to the
soldering pads on the PCB. These pads must NOT be grounded.
3
2
1
Feed Pad (1): the white circle on the top of the antenna indicates the position of the feed
pad in the bottom. Align the feed point with the feeding line on the PCB. See Figure 1.
Figure 4 –Pads of the Fractus Media+ UWB chip antenna
As a surface mount device (SMD), this antenna is compatible with industry standard soldering processes. The
basic assembly procedure for this antenna is as follows:
1. Apply a solder paste on the pads of the PCB. Place the antenna on the board.
2. Perform a reflow process according to the temperature profile detailed in table 3 figure 6 of page 10.
3. After soldering the antenna to the circuit board, perform a cleaning process to remove any residual
flux. Fractus recommends conducting a visual inspection after the cleaning process to verify that all
reflux has been removed.
The drawing below shows the soldering details obtained after a correct assembly process:
Antenna
Antenna
Solder Paste
~ 0.1* mm
PCB
PCB
Figure 5 - Soldering Details
NOTE: Solder paste thickness after the assembly process will depend on the thickness of the soldering stencil
mask. A stencil thickness equal or larger than 127 microns (5 mils) is required.
July 2015
Page 9
1999-2015 © FRACTUS, S.A.
Fractus Media+ UWB chip antenna can be assembled following the Pb-free assembly process. According to the
Standard IPC/JEDEC J-STD-020C, the temperature profile suggested is as follows:
Phase
Profile features
Pb-Free Assembly
(SnAgCu)
RAMP-UP
Avg. Ramp-up Rate (Tsmax to Tp)
3 ºC / second (max.)
PREHEAT
- Temperature Min (Tsmin)
- Temperature Max (Tsmax)
- Time (tsmin to tsmax)
150 ºC
200 ºC
60-180 seconds
REFLOW
- Temperature (TL)
- Total Time above TL (t L)
217 ºC
60-150 seconds
PEAK
- Temperature (Tp)
- Time (tp)
260 ºC
20-40 seconds
RAMP-DOWN
Rate
6 ºC/second max.
Time from 25 ºC to Peak Temperature
8 minutes max.
Table 3 – Recommended soldering temperatures
Next graphic shows temperature profile (grey zone) for the antenna assembly process in reflow ovens.
Figure 6 – Temperature profile
July 2015
Page 10
1999-2015 © FRACTUS, S.A.
7. PACKAGING
The Fractus Media+ UWB Chip antenna is available in tape and reel packaging.
Figure 7 –Tape dimensions & image including antennas
Measure
mm
Measure
mm
TAPE WDITH (W)
16.0 ± 0.3
Wmax
16.3
A0
10.5 ± 0.1
E
1.7 ± 0.1
B0
10.5 ± 0.1
F
7.5 ± 0.1
K0
B1
1.5 ± 0.1
11.1 ± 0.1
K
P
1.8 ± 0.1
12.0 ± 0.1
D
2.0 ± 0.1
P0
4.0 ± 0.1
D1
2.0 ± 0.1
P2
2.0 ± 0.1
Measure
mm
A
330 ± 1
G
17.5 ± 0.1
t max
21.5 ± 0.2
Reel Capacity: 2500 antennas.
Figure 8 – Reel Dimensions and Capacity
July 2015
Page 11
1999-2015 © FRACTUS, S.A.