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Dual-band microstrip antenna for 900MHZ and 2GHz (help!!!)

thread247-48092

Dual-band microstrip antenna for 900MHZ and 2GHz (help!!!)

Dual-band microstrip antenna for 900MHZ and 2GHz (help!!!)

(OP)
Hi all,

I recently designed a Plane inverted F antena (PIFA) for Dual-band microstrip antenna for 900MHZ and 2GHz, however, when i do the adjustment, it is difficult that both frequencies dB are very low, nearly 8-9dB.........so is that any other way to solve this???


Ragerds,
Raymond

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