Compact tunable UHF bandstop resonator filter using varactor-loaded CPW bottom-side meander line

Author

Jiang, Hu ; Lacroix, Benjamin ; Papapolymerou, John

Author_Institution

Sch. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

fYear

2011

fDate

10-13 Oct. 2011

Firstpage

1063

Lastpage

1066

Abstract

This paper presents a novel tunable coplanar waveguide bottom-side meander line bandstop resonator filter. The proposed topology consists of modifying the electrical length of the meander line by tuning loaded varactors. As the reverse bias voltage is changed from 0 to 20 V, the resonance frequency is tuned from 0.51 GHz to 1.76 GHz, resulting in a very high tuning of 245%. Additionally, the proposed ultra high frequency (UHF) filter features a compact size of 4 × 9 mm². Measurements of the fabricated filter are in very good agreement with simulated results.

Keywords

UHF filters; band-stop filters; coplanar waveguides; resonator filters; tuning; varactors; compact tunable UHF bandstop resonator filter; coplanar waveguide; electrical length modification; frequency 0.51 GHz to 1.76 GHz; resonance frequency; reverse bias voltage; ultrahigh-frequency filter; varactor-loaded CPW bottom-side meander line; voltage 0 V to 20 V; Capacitance; Coplanar waveguides; Microwave filters; Resonant frequency; Resonator filters; Tuning; Varactors;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference (EuMC), 2011 41st European

Conference_Location

Manchester

Print_ISBN

978-1-61284-235-6

Type

conf

Filename

6101835