Design of a Reconfigurable Active Bandpass Filter Based on a Controllable Slope Parameter

Author

Baek, Hyung-Il ; Cho, Young-Ho ; Wang, Xu-Guang ; Lee, Hye-Min ; Yun, Sang-Won

Author_Institution

Dept. of Electron. Eng., Sogang Univ., Seoul, South Korea

Volume

21

Issue

12

fYear

2011

Firstpage

670

Lastpage

672

Abstract

This letter presents a reconfigurable active bandpass filter based on a controllable slope parameter. The proposed filter has reconfigurable bandwidths and center frequencies, and both can be continuously changed using varactor diodes as the tuning elements. The wide tuning range of the bandwidth is achieved by adjusting the slope parameter of the resonators. This letter describes the design and testing of a two-pole reconfigurable filter with tuning ranges in the center frequency of 2.0-2.6 GHz and 3 dB bandwidth of 127-598 MHz at the center frequency of 2.15 GHz.

Keywords

UHF filters; active filters; band-pass filters; resonators; varactors; bandwidth 127 MHz to 598 MHz; center frequencies; controllable slope parameter; frequency 2.0 GHz to 2.6 GHz; frequency 2.15 GHz; gain 3 dB; tuning elements; two-pole reconfigurable active bandpass filter design; varactor diodes; Band pass filters; Bandwidth allocation; Resonant frequency; Resonator filters; Tuning; Varactors; Bandpass filter (BPF); bandwidth tunability; microstrip; reconfigurable filter; tunable filter; varactor;

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2011.2170668

Filename

6076820