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HELP ME!: how to design 1.57Ghz Microstrip antenna for GPS

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nyamook

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microstrip antenna for gps

hello friends...i'm beginner in this forum....i from Malaysia....anybody can help me to design 1.5Ghz microstrip antenna for GPS receiver...plz email me at nyamook@hotmail.com....thanx
 

microstrip passive antenna gps

Active or Passive
 

hello, i need it.
I am studying GPS related problem, and i need a GPS antenna with microstrip design. can you give me some advice?
note: this antenna must be a narrowband one, such as 20MHz, who can give me help?
 

Re: HELP ME!: how to design 1.57Ghz Microstrip antenna for G

I tryed to build like patch antenna,
but dimensions are big about 4-5 cm.
I get S11 about 10-15 dB.
But I dont checkit in function, because it was to big for my design.
 

Re: HELP ME!: how to design 1.57Ghz Microstrip antenna for G

It is hard to make an antenna with this limited bandwidth. The better thing to do is to use an antenna with modelate bandwidth and then cascade it with a good bandpass filter. This will be better.

Search for patch antenna structures. There are a lot of examples available

http://www.swissatv.ch/documents/Design_Rectangular_Microstrip_Patch_Antenna.pdf

There are plenty of more to find! Google leads the way ...
 

if annybody have paper about the Active GPS ANTENNA.
 

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