Title :
Switchable Embedded Notch Structure for UWB Bandpass Filter
Author :
Chun, Young-Hoon ; Shaman, Hussein ; Hong, Jia-Sheng
Author_Institution :
Dept. of Electr., Electron. & Comput. Eng., Heriot-Watt Univ., Edinburgh
Abstract :
A reconfigurable ultra-wideband (UWB) bandpass filter (BPF) with switchable notch for UWB system is presented. The UWB BPF is embedded with two identical switchable notch structures, in which PIN diodes are used for electronic switching. A bias circuit for UWB applications was investigated and designed to control the state of PIN diodes in order to activate or deactivate the notch without an affect on the response of the BPF. A demonstrator for this type of switchable notch UWB filter is designed and fabricated. Simulated and measured results are described.
Keywords :
band-pass filters; microstrip filters; notch filters; switched filters; PIN diodes; UWB bandpass filter; bias circuit; electronic switching; microstrip filter; switchable embedded notch structure; Band pass filters; Communication switching; FCC; Frequency; Impedance; Joining processes; Microstrip filters; Switches; Tunable circuits and devices; Ultra wideband technology; Bandpass filter (BPF); microstrip filter; switchable notch; tunable filter; ultra-wideband (UWB) filter;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2008.2002451
