Asymmetric bandpass filter using a ceramic structure
- 1 September 1992
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Microwave and Guided Wave Letters
- Vol. 2 (9) , 361-363
- https://doi.org/10.1109/75.153620
Abstract
A ceramic bandpass filter with increased selectivity on the lower side of the passband is presented. One application is the receive filter of a mobile radio transceiver operating in the 1.8-GHz bands. Finite transmission zeros have been introduced by using a network with additional cross couplings. The circuit was constructed with four coaxial ceramic resonators capacitively coupled using a microstrip PCB. For a 75-MHz passband filter, a stopband attenuation of 37 dB was attained at 20-MHz offset from the passband. A midband insertion loss of 1.2 dB and bandedge loss of 3 dB were achieved.Keywords
This publication has 2 references indexed in Scilit:
- Attenuation pole type dielectric filter for duplexerPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Asymmetric bandpass filter using a novel microstrip circuitIEEE Microwave and Guided Wave Letters, 1992