Title :
Compact 2.1/3.6 GHz Planar Bandpass Filter
Author :
Takagi, Yuta ; Satoh, Kei ; Kawai, Kunihiro ; Koizumi, Daisuke ; Narahashi, Shoichi
Author_Institution :
NTT DoCoMo Inc., Yokosuka
Abstract :
This paper proposes a compact planar dual-band bandpass Alter (DBPF). The proposed DBPF employs a resonator comprising a combination of spiral and stepped-impedance structures in order to reduce the size of the DBPF. The feature of this filter is that these structures are placed close together to achieve a compact configuration. A 2.1/3.6 GHz superconducting planar bandpass filter is fabricated to investigate experimentally dual-band operation.
Keywords :
UHF filters; band-pass filters; microwave filters; superconducting filters; compact bandpass filter; dual-band bandpass filter; frequency 2.1 GHz; frequency 3.6 GHz; spiral structure; stepped-impedance structures; superconducting planar bandpass filter; Band pass filters; Base stations; Computer simulation; Dual band; Mobile communication; Passband; Radio frequency; Resonator filters; Spirals; Superconducting filters; Bandpass filters; dual-band; resonator filters; superconducting filters;
Conference_Titel :
Microwave Conference, 2007. KJMW 2007. Korea-Japan
Conference_Location :
Okinawa
Print_ISBN :
978-1-4244-1556-4
DOI :
10.1109/KJMW.2007.4402252
