Armata 3G FPC Antenna
Part No. SRFC011
1.
flexiiANT ®
Product Specification
Features
2.
Antenna for 3G applications including MIMO systems.
GSM850, GSM900, DCS1800, PCS1900, WCDMA2100
Small form factor, only 30.0 x 28.5mm
1.13mm diameter RF cable with IPEX MHF connector
Self-adhesive mounted
Quick and simple integration minimizes design cycle
Available in 3 standard cable lengths
Suited to smaller devices such as ODBII
Description
Armata is intended for use with 3G applications. Suited for small devices with limited
space. Designed to work with small host PCB’s while still maintaining full coverage of
the 3G bands. This product specification shows the performance of the antenna to
cover a typical penta-band reception: GSM850/900/1800/1900 and WCDMA.
3.
Applications
ODBII units
Femto / Pico base stations
Small Tracker devices
Remote monitoring
Machine to Machine communication
Antennas for Wireless M2M Applications
Product Specification PS SRFC011-1.0
Page 1
Armata
Part No. SRFC011
4.
Part Number
Armata: SRFC011
5.
General Data
Product name
Armata
Part Number
SRFC011
Frequency
824-960MHz; 1710-2170MHz
Polarization
Linear
Operating temperature
-40°C to 85°C
Impedance with matching
50 Ω
Weight
< 0.5 g
Antenna type
FPC Self-adhesive 3M 468P
Dimensions (Antenna)
30 x 28.5 x 0.15 (mm)
Connection
IPEX
6.
RF Characteristics
824 – 960 MHz
1710 – 1990 MHz
2110 – 2170 MHz
Peak gain
2.46dBi
4.06dBi
3.89dBi
Average gain
-3.79dBi
-2.59dBi
-2.21dBi
Average efficiency
>40%
>55%
>60%
Maximum return loss
-6.0dB
-8.0dB
-12.0dB
Maximum VSWR
2.90:1
2.20:1
1.60:1
All data measured in a loaded condition
adhered to a plastic carrier free space.
Antennas for Wireless M2M Applications
Product Specification PS SRFC011-1.0
Page 2
Armata
Part No. SRFC011
7.
RF Performance
7.1 Return Loss
5
[dB]
Atyune
0
-5 1
3
4
2
-10
5
6
-15
-20
[MHz]
-25
800
900
1000
1100
MARKERS: MHz
dB
RD8011-MP.S1P - S11
1200
MHz
1: 824 -6.10
2: 960 -10.52
3: 1710
4: 1990
1300
dB
-8.37
-8.56
1400
1500
MHz
1600
1700
1800
1900
2000
2100
2200
dB
5: 2110 -12.42
6: 2170 -12.45
7.2 VSWR
10
[]
Atyune
9
8
7
6
5
4
3
1
3
4
2
2
1
800
5
6
[MHz]
900
1000
1100
MARKERS: MHz
RD8011-MP.S1P - S11
1: 824
2: 960
2.96
1.85
1200
1300
MHz
3: 1710
4: 1990
1400
1500
1600
1700
1800
1900
2000
2100
2200
MHz
2.23
2.19
5: 2110
6: 2170
1.63
1.63
Antennas for Wireless M2M Applications
Product Specification PS SRFC011-1.0
Page 3
Armata
Part No. SRFC011
7.3 Antenna patterns
7.3.1
824 MHz – 960 MHz
3D pattern at 890 MHz
Drag to rotate pattern and PCB by using Adobe Reader
(Click to Activate)
Antennas for Wireless M2M Applications
Product Specification PS SRFC011-1.0
Page 4
Armata
Part No. SRFC011
7.3.2
1710 MHz – 2170 MHz
3D pattern at 1950 MHz
Drag to rotate pattern and PCB by using Adobe Reader
(Click to Activate)
Antennas for Wireless M2M Applications
Product Specification PS SRFC011-1.0
Page 5
Armata
Part No. SRFC011
8. Antenna Dimensions
8.1 Dimensions FPC section
L
W
T
Length
Width
Thickness
30.0 ±0.2 (mm)
28.5 ±0.2 (mm)
0.15 (mm) nominal
All dimensions in mm
8.2 Dimensions assembled
L
SRFC011-100
SRFC011-150
SRFC011-200
L
L
L
122 ±2.0 (mm)
172 ±2.0 (mm)
222 ±2.0 (mm)
Antennas for Wireless M2M Applications
Product Specification PS SRFC011-1.0
Page 6
Armata
Part No. SRFC011
8.3 IPEX Connector
I-PEX
Front
Material
Copper Alloy
Plating
Ag
Side
Back
5.0
3.0
All dimensions in mm
8.4 Assembly
1.13mm ø Cable
I-PEX Connector
FPC
Antennas for Wireless M2M Applications
Product Specification PS SRFC011-1.0
Page 7
Armata
Part No. SRFC011
9. Electrical Interface
9.1 Host Interface
The host PCB requires the mating connector which is IPEX MHF (UFL) receptacle.
The location should be close to the chip/modules pin for the RF. Any feed from this
receptacle should be maintained at 50Ω impedance.
9.2 Transmission Line
All transmission lines should be designed to have a characteristic impedance of 50Ω.
• The length of the transmission lines should be kept to a minimum
• Any other parts of the RF system like transceivers, power amplifiers, etc, should
also be designed to have an impedance of 50 Ω
Once the material for the PCB has been chosen (PCB thickness and dielectric
constant), a coplanar transmission line can easily be designed using any of the
commercial software packages for transmission line design. For the chosen PCB
thickness, copper thickness and substrate dielectric constant, the program will
calculate the appropriate transmission line width and gaps on either side of the feed.
A DC blocking capacitor should be placed in line to protect the RF front end.
10. Mechanical Fixing
The antenna uses 3M 468MP adhesive on the reverse side of the FPC. The antenna
has an easy access split line to peel off to reveal the adhesive side. It is designed for
a one time fix to a clean smooth surface.
FPC back side
Split line for
easy peel
Antennas for Wireless M2M Applications
Product Specification PS SRFC011-1.0
Page 8
Armata
Part No. SRFC011
10.0 Antenna Integration Guide
10.1 Placement
For placing the FPC antenna within a device, the host PCB size is not a factor like
with PCB mounted antennas. However placement still needs to follow some basic
rules, as any antenna is sensitive to its environment.
Using six spatial directions shown below as a guide. The antenna FPC section
should try to maintain a minimum of three directions free from obstructions to be able
to operate effectively. The other directions will have obstacles in their paths, these
directions still require a minimum clearance. These minimum clearances are further
defined in this section. The plastic case is not included in this, only metal
objects/components that will obstruct or come in close proximity to the antenna.
Six spatial directions relative to FPC
Antennas for Wireless M2M Applications
Product Specification PS SRFC011-1.0
Page 9
Armata
Part No. SRFC011
10.2 Orientation of FPC
The orientation of the FPC with respect to the host PCB should be defined
depending on the unit. The proximity of the GND will have an influence on the
antenna so the PCB location relative to the antenna should be considered.
The FPC will normally be placed in one of the three following options for orientation.
In each option a distance (d) is the critical dimension to consider. Below shows the
minimum value of (d) for each. Other obstructions may increase this dimension.
1) Vertical mounted
FPC
Cable +Connector
d ≥ 2mm
PCB
1) Co-planar to PCB
d ≥ 15mm
2) Planar to PCB (Same plane)
d ≥ 2mm
10.3 Host PCB size
SRFC011 is designed specifically for smaller devices. The host PCB size has a large
effect on the performance. It is recommended for the host PCB to be
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