CDMA 기지국용 SAW BAND PASS FILTER 의 설계 및 제작

초록

CDMA base station SAW filter has been designed and fabricated successfuly. Through the computer simulation, SAW filter is designed to ahve center frequency of 69.99MHz, ripples lower than 0.7dB and rejection level lower than 50dB. To obtain low noise band pass SAW filter, Input electrode has a apodization type and output electrode has a withdrawal type. For the fabrication has center frequency of 70.5MHz, ripples of 1dB and rejection levle of 1dB and rejection level of 45dB.