[SI-LIST] Patch Antenna Design for UHF RFID reader
- From: "Vinod Kumar" <vinodsaharan@xxxxxxxxxxxxxxxx>
- To: <si-list@xxxxxxxxxxxxx>
- Date: Thu, 12 Mar 2009 12:41:58 +0530
Hi All,
I want to design a patch antenna for UHF RFID reader. There are two options:
1. A microstrip patch antenna but the bandwidth will be less with this antenna.
2. A patch antenna with metal plates which can provide more bandwidth.
My requirements are:
A circularly polarized patch antenna with 6~9 dBi gain and 865 - 867MHz
bandwidth cover. Antenna should be able to radiate +30dBm (1W) RF power.
Can anybody suggest which option will be good?
Also where can I find good application notes for patch antenna design?
One more doubt I have here is how to select the metal for 2nd option. Which
material will be best suited for this?
Regards,
Vinod
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