High power mixed-cavity bandpass filter

Author

Shao-fei Cheng ; Bao-fu Jia ; Zhao-jun Zhu

Author_Institution

Inst. of Apppplied Phys., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

Volume

1

fYear

2013

fDate

15-17 Nov. 2013

Firstpage

352

Lastpage

354

Abstract

A novel structure of coaxial cavity filter is proposed, which is characterized by using mixed-cavities, improved performance, and good tunability. Mixed-cavities mean that the geometry shape of the cavities is different or the type of the resonators is different. In this paper, a high power bandpass filter with two transmission zeros based this new structure with different geometry shapes has been designed. The filter with passband from 1238MHz to 1306MHz exhibits a very sharp cutoff frequency, and rejection is better than 50dB from 1330MHz to 5500MHz. The characteristics of harmonic suppression and power handing capabilities are better than conventional filter.

Keywords

UHF filters; band-pass filters; cavity resonators; harmonics suppression; microwave filters; poles and zeros; resonator filters; UHF filters; coaxial cavity filter; frequency 1238 MHz to 1306 MHz; frequency 1330 GHz to 5500 GHz; harmonic suppression; high power mixed-cavity bandpass filter; microwave filters; power handing capability; transmission zeros; Band-pass filters; Cavity resonators; Couplings; Filtering theory; Microwave filters; Power harmonic filters; Resonator filters;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, Circuits and Systems (ICCCAS), 2013 International Conference on

Conference_Location

Chengdu

Print_ISBN

978-1-4799-3050-0

Type

conf

DOI

10.1109/ICCCAS.2013.6765250

Filename

6765250