I have designed a micro strip antenna integrated with a DRA antenna. The micro strip antenna gives a UWB range and DRA gives a narrow band width. I have got isolation between antenna port 1 and port 2 which is -10 db. how can I improve the isolation between two ports.
sir i am from ece .i don't know what is power switch or SAW. if have any papers please uplode them .
Neutralization technique, see our papers on IEEE TAP and IET MAP and in IEEE conferencs
There are many techniques discussed in the literature to improve the isolation between the antennas like using EBG structures, DGS structures, polarization diversity, changing shape of the antenna etc.
You can use Magic TEE and one feed in E plane and another feed in H plane will improve isolation
you can add microstrip coupler to your design , i think it'll improve isolation , check it's design in Microwave engineering , David M.Pozar
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