Design and Analysis of Isolation Improvement and Compact Size of SPDT Switch with Switchable Open Stub Resonator for Wireless Communication

Noor Azwan, Shairi and Badrul Hisham, Ahmad and Peng Wen, Wong and Zakaria, Zahriladha (2013) Design and Analysis of Isolation Improvement and Compact Size of SPDT Switch with Switchable Open Stub Resonator for Wireless Communication. International Journal of Electronics and Computer Science Engineering, 2 (1). pp. 9-17. ISSN 22771956

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Abstract

Two new designs of switchable microstrip line open stub resonator are proposed for isolation improvement of SPDT discrete PIN diode switch which is targeted for wireless communication such as WiMAX and LTE application at 3.5 GHz band. Despite of isolation improvement, the second design of the resonator can reduce overall size of SPDT discrete PIN diode switch. The PIN diodes are based on commercialize single PIN diode in SOD523 package. The solutions are for microstrip line based circuit design with low performance discrete PIN diode and low cost printed circuit board using FR4 material to achieve isolation higher than 30 dB. Firstly, the conceptual and operation of the proposed resonators are discussed using mathematical modeling. The isolation improvement using microstrip line open stub resonator is modeled and analyzed based on two-port network. Then, two different SPDT discrete PIN diode switches with switchable microstrip line open stub resonator are demonstrated. The simulated results and the measured results agree well for both designs where it shows improvement of isolation higher than 30 dB and the second design is able to reduce 34% of the total circuit size compared with the first design.

Item Type: Article
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculty of Electronics and Computer Engineering > Department of Telecommunication Engineering
Depositing User: Mr Noor Azwan Shairi
Date Deposited: 10 Jan 2014 00:39
Last Modified: 28 May 2015 04:12
URI: http://eprints.utem.edu.my/id/eprint/10594
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