WM_PRJ_Q2501_PTS_002
- 001
March
2004
confidential ©
Page:
59 / 79
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged
without prior written agreement.
Ce document est la propriété exclusive de WAVECOM. Il ne peut être communiqué ou divulgué à
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The LNA used (AM50-0002 from MACOM) is traditionally used in many GPS
active antennas. This LNA is very simple to use, but the consumption is fairly
high (20 mA), that is not well suited for handheld devices.
Similar LNA (with lower consumption) from other manufacturers can be used
(NEC, Maxim, RFMD…).
Some basic RF rules must be observed for the PCB layout:
the distance between the ceramic patch antenna and the LNA must be
as short as possible in order to minimize losses,
A large ground plane is recommended for the ceramic patch antenna
(typically 25 to 50 cm²),
Avoid other components on the antenna side.
If you want to design an active antenna on your application, please contact
WAVECOM Support in order to organize a complete design review.
3.5.4 Single coax connection
If you want to design a single coax connection on your application, please
contact WAVECOM Support in order to organize a complete design review.
Summary of Contents for WISMO Quik Q2501
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