Title :
A novel dual-band step-impedance filter with tunable transmission zeros
Author :
Ma, Wei ; Chu, Qing-Xin
Author_Institution :
Coll. of Electron. & Inf. Eng., South China Univ. of Technol., Guangdong, China
Abstract :
A novel dual-band step-impedance bandpass filter for multimode wireless LANs is presented, which has a dual-band feature of two passbands at desired frequencies and high out-of-band suppression generated by tunable transmission zeros which are given by incorporating step-impedance resonators with special input/output (I/O) ports. The location of transmission zeros can be chosen at any desired frequencies.
Keywords :
band-pass filters; poles and zeros; resonators; wireless LAN; bandpass filter; dual-band step-impedance filter; input/output ports; multimode wireless LAN; out-of-band suppression; step-impedance resonators; tunable transmission zeros; Band pass filters; Dual band; Filtering theory; GSM; Passband; Radio frequency; Resonator filters; Transceivers; Tunable circuits and devices; Wireless LAN; Filter; dual-band; step-impedance; transmission zeros;
Conference_Titel :
Microwave Conference Proceedings, 2005. APMC 2005. Asia-Pacific Conference Proceedings
Print_ISBN :
0-7803-9433-X
DOI :
10.1109/APMC.2005.1606936
