A Study on the RF filter of Wireless LAN using Hairpin Resonator

Hairpin 공진기를 이용한 무선 LAN용 RF필터에 관한 연구

In this paper, a MIC(Microwave Integrated Circuit) bandpass filter for wireless LAN(local area network) band is designed using hairpin resonators. The coupling between the hairpin resonators in the filter can be implemented with Y-Tpye coupling or X-Tpye coupling instead of conventional coupling in order to reduce the filter size. The filter with miniaturized hairpin resonator using parallel coupling is smaller in size by 50% more than that of a general hairpin filter