Title :
Compact dual-band bandpass filter using defected microstrip structure for GPS and WLAN applications
Author :
Liu, H.W. ; Zhang, Z.C. ; Wang, Shuhui ; Zhu, L. ; Guan, X.H. ; Lim, J.S. ; Ahn, Dukju
Author_Institution :
Coll. of Inf. Eng., East China of Jiaotong Univ., Nanchang, China
fDate :
10/1/2010 12:00:00 AM
Abstract :
A modified defected microstrip structure (DMS) for designing a dual-band bandpass filter with independently controlled centre frequencies is presented. The DMS using an F-shaped spurline embedded into a uniform impedance resonator is applied to generate double-resonance characteristics. Based on this theory, a dual-band filter for GPS/WLAN applications has been designed, analysed and fabricated. It is compact and has easy fabrication. Measured results verify the validity of this design methodology. Also, this is believed to be the first report on the DMS in microwave dual-band filter design.
Keywords :
Global Positioning System; band-pass filters; integrated circuit design; integrated circuit manufacture; microwave filters; microwave integrated circuits; wireless LAN; F-shaped spurline; GPS; Global Positioning System; WLAN; compact dual-band bandpass filter; defected microstrip structure; microwave dual-band filter design; uniform impedance resonator; wireless local area networks;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2010.2146
