Switchable Absorptive Bandstop To Bandpass Filter Using Stepped-Impedance Dual Mode Resonator

Shairi, Noor Azwan and Ahmad, Badrul Hisham and Zahari, Mohd Khairy and Wong , Peng Wen (2017) Switchable Absorptive Bandstop To Bandpass Filter Using Stepped-Impedance Dual Mode Resonator. Journal Of Telecommunication Electronic And Computer Engineering (JTEC), 9 (2-13). pp. 17-21. ISSN 2289-8131

Text 05- Paper - Switchable Absorptive Bandstop.pdf - Published Version Restricted to Registered users only Download (830kB)

Abstract

In this paper, a new switchable absorptive bandstop to bandpass filter using dual mode ring resonator is presented. This switchable filter provides two modes of operation which is absorptive bandstop and bandpass response. The first part of this paper presents a theoretical analysis of the absorptive bandstop dual mode ring resonator based on two low-Q lossy resonators topology. The operating frequency of the absorptive bandstop filter is 2.4 GHz with S11 > -10dB and S21 > -30dB. The absorptive bandstop response can be achieved by controlling the K-inverter and perturbing stub. The second part of this paper presents an investigation and the design of the switchable absorptive bandstop to bandpass filter in EM simulation. Varactor diodes are used to control the K-inverter and a PIN diode is used as the ON and OFF switch of the additional length of perturbing stub. A bandpass response can be achieved by controlling the voltage from 1 V to 10 V of the varactor diodes. The bandpass response can be enhanced to dual-mode bandpass response by adding additional length to the perturbing stub. The parametric studies together with the EM simulation of the new switchable absorptive bandstop to the bandpass dual mode ring resonator filter is presented in this paper.

Item Type:	Article
Uncontrolled Keywords:	Absorptive Bandstop; Bandpass; Stepped- Impedance; Matched Bandstop; Switchable Filter.
Subjects:	T Technology > T Technology (General) T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:	Faculty of Electronics and Computer Engineering
Depositing User:	Nor Aini Md. Jali
Date Deposited:	15 May 2018 09:16
Last Modified:	09 Jul 2021 13:15
URI:	http://eprints.utem.edu.my/id/eprint/20869
Statistic Details:	View Download Statistic

Actions (login required)

View Item