A10204-U1 Antenova, A10204-U1 Datasheet - Page 7
![Antennas Reference Board for Brevis GPS Antenna](/photos/16/26/162600/a10204u1_sml.jpg)
A10204-U1
Manufacturer Part Number
A10204-U1
Description
Antennas Reference Board for Brevis GPS Antenna
Manufacturer
Antenova
Datasheet
1.A10204-U1.pdf
(12 pages)
Specifications of A10204-U1
Dimensions
70 mm L x 30 mm W
Frequency Range
1575 MHz
Vswr
1.4:1
Technology Type
Reference Board for Internal GPS SMD Chip Antenna
Frequency
1575 MHz
Bandwidth
50 MHz
Gain
0 dBi
Termination Style
SMA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
10 Electrical interface
10-1 Transmission lines
10-2 Matching circuit
Integrated Antenna and RF Solutions
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Once the material for the PCB has been chosen (PCB thickness and dielectric constant), a co-
planar 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 track so the characteristic impedance of the coplanar
transmission line is 50Ω.
The antenna requires a matching circuit that must be optimized for each customer’s product.
The matching circuit will require up to three components and the following pad layout should be
designed into the device so the correct circuit can be installed:
The antenna feed pad and the antenna ground pads are indicated in the drawing above.
Additional pads are for mechanical attachment only and should not be grounded.
All transmission lines should be designed to have a characteristic impedance of 50 Ω
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
Brevis GPS SMD Antenna
Product Specification 09MD-0019-2-PS
Part No. A10204
7