A Study on Design of Dual-Bandpass Filters for Wireless LAN

Jeon, Mi-Hwa; Kim, Eun-Mi; Kim, Dong-ll; Jeon, Joong-Sung; Kim, Min-Jung

Journal of Navigation and Port Research 2008;32(6):481-487.
Published online August 30, 2008.

무선 LAN용 이중 대역통과 필터의 설계에 관한 연구

전미화, 김은미, 김동일, 전중성, 김민정

A Study on Design of Dual-Bandpass Filters for Wireless LAN

Mi-Hwa Jeon, Eun-Mi Kim, Dong-ll Kim, Joong-Sung Jeon, Min-Jung Kim

Abstract

Ship's wireless LAN was in the limelight as equipment of ease, cost reduction, various func.tion.al.i.ty. In the paper. a dual-bandpass filter for wireless LAN has proposed, which was designed by using dual-mode square loop resonator with square patch in compliance with 2.4 GHz and 5 GHz band of wireless LAN. The dual-bandpass filter could be designed by adjusting sizes of one perturbation element and three of reference elements in compliance with the frequency bands of 2.4 GHz and 58 GHz, Furthermore, new dual-bandpass filter was also designed by adjusting stopband if using open stubs in compliance with the frequency bands of 2.4 GHz and 52 GHz. The measured results for the fabricated dual-bandpass filters agreed well with the simulated ones. and hence. it was confirmed that the proposed design method is valid.

Key Words: 무선 LAN; Wireless LAN;Dual-bandpass filter;Open stub;Square loop;Square patch