size of ground plane in designing microstrip patch antenna

[ling2_xiaobai]

hi, i am designing microstrip patch antenna that will operate at 2.3 GHz.
i will use fr-4 as substrate and the thickness of substrate is 0.8 mm.
but i am very confused with the size of ground plane.
i hope the size of ground plane will be shorter than substrate because i am planning to print metamaterial structure at bottom of substrate for the further work.
anyone can help me to find the best size of ground plane?
thanks you very much...



xiaobai

 

[Sherry1]

Hi
This seems a very old post. Have you been able to solve the GNP (Ground plane) calucaltions? I am working on GSM antenna and I want the whole circuitry to stay within 45x30mm PCB size but I hear that ceramic chip antennas require as much as 60x80mm ground plane . can you give idea how you reached a solution?

 

[hussein mohammed]

there is no problem if you are but ground plane shorted than substrate dimensions