Open AccessAnalysis of Open Stub Resonator and its Application in Dual Isolation Band of SPDT Switch Design
Author(s) -
M. Y. Algumaei,
Noor Azwan Shairi,
Zarina Zakaria,
Abdullah Mohammed Saghir Zobilah,
B. H. Ahmad
Publication year - 2016
Publication title -
international journal of electrical and computer engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.277
H-Index - 22
ISSN - 2088-8708
DOI - 10.11591/ijece.v6i6.pp2900-2910
Subject(s) - resonator , stub (electronics) , insertion loss , return loss , wimax , multi band device , microstrip , center frequency , passband , optoelectronics , physics , electrical engineering , materials science , electronic engineering , acoustics , telecommunications , band pass filter , computer science , engineering , wireless , antenna (radio)
In this paper, an analysis of open stub resonator is presented and its application in dual isolation band of Single Pole Double Throw (SPDT) switch is proposed. A mathematical model and the characteristic of the bandstop of the resonator were analyzed and discussed. The open stub resonator was implemented using the microstrip transmission line and able to switch between bandstop and allpass responses. Frequency bands of 2.3 and 3.5 GHz were chosen to demonstrate the dual isolation band in the switch design. The performance results of the SPDT switch showed that the isolation was greater than 30 dB, return loss was greater than 10 dB and insertion loss less than 2 dB at the center resonant frequency of 2.3 and 3.5 GHz. The potential application of the proposed dual isolation band of SPDT switch is for multi band RF front-end system such as WiMAX, LTE, WiFi and HyperLAN.