Outband GPS patch antenna gain?

Hi everyone,

I'm considering a GPS patch antenna with a 4dBi gain (zenith) and a 20MHz bandwidth. What should I consider for gain outside of this bandwidth? Is the attenuation important at let's say 1GHz or 500MHz?

Thanx in advance

Simply feed through some bandpass filter and do not worry about the radiation at 1GHz or 500MHz.

Excuse me,

in your antenna design, did u consider the antenna phase centre and the group delay?

they have too a strong impact on the overall performance.

Regards

Lupin