Design of quarter-wavelength resonator filters with coupling controllable paths

Author

Fanyi Meng ; Kaixue Ma ; Shanshan Xu ; Kiat Seng Yeo ; Chirn Chye Boon ; Wei Meng Lim ; Manh Anh Do

Author_Institution

Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore

fYear

2012

fDate

2-5 Dec. 2012

Firstpage

248

Lastpage

251

Abstract

This paper presents compact quarter-wavelength resonator filters to have multiple transmission zeros points (ZPs) with controllable electric and magnetic coupling paths. For two coupled resonators, the relative strength of electric and magnetic coupling paths determines the transmission ZPs positions that can be at either lower or upper stopband. Besides, the location of transmission ZPs can be precisely controlled by tuning the dimension parameters. Based on the proposed topology and configuration, the second-order and fourth-order bandpass filters operating at 5.1 GHz have been designed using multi-layer LTCC technology.

Keywords

band-pass filters; ceramics; circuit tuning; coupled circuits; resonator filters; topology; ZP transmission; compact quarter-wavelength resonator filter; controllable electric and magnetic coupling path; coupled resonators; dimension parameter tuning; electric coupling path; fourth-order bandpass filter; frequency 5.1 GHz; multilayer LTCC technology; second-order bandpass filter; topology; transmission zeros points; Band pass filters; Couplings; Filtering theory; Magnetic separation; Microstrip filters; Microwave filters; Resonator filters;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems (APCCAS), 2012 IEEE Asia Pacific Conference on

Conference_Location

Kaohsiung

Print_ISBN

978-1-4577-1728-4

Type

conf

DOI

10.1109/APCCAS.2012.6419018

Filename

6419018