Title :
Dual-band bandpass filter using embedded spiral resonator and broadside-coupled meander slot-line
Author :
Luo, Xiaohua ; Ma, J.-G. ; Yeo, Kiat Seng
Author_Institution :
Sch. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
A dual-band bandpass filter with high selectivity is proposed. The filter is composed of two parts: 1. two embedded spiral resonators with a non 0°-feed coupled scheme, 2. a broadside-coupled meander slot-line. This structure can introduce seven transmission zeros to achieve strong passband selectivity and good stopband rejection. Based on the structure, a dual-band bandpass filter is fabricated to operate at the WLAN bands (i.e. 2.4/5.2°GHz).
Keywords :
band-pass filters; band-stop filters; resonator filters; WLAN bands; broadside-coupled meander slot-line; dual-band bandpass filter; embedded spiral resonator; passband selectivity; stopband rejection;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2010.1627
