Vol. 103

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2020-07-06

Absorptive Filter Integrated Single Pole Double Throw Switch Using Switchable T-Shape Resonator for IoT Applications

By Abdullah Mohammed Zobilah, Noor Azwan Shairi, Zahriladha Zakaria, Peng Wen Wong, Mohd Khairy Zahari, Mohammed Yahya Qaid Algumaei, and Zayed Abdo Abdullah Nasser
Progress In Electromagnetics Research C, Vol. 103, 167-176, 2020
doi:10.2528/PIERC20050503

Abstract

In this paper, an absorptive filter-integrated switch (FIS) using switchable T-shape resonators is presented. The FIS was made up of two absorptive T-shape resonators and integrated with single pole double throw (SPDT) switch. A simple mathematical analysis of isolation and insertion loss of filter-integrated SPDT switch is discussed. PIN diodes were used as the switching elements for the SPDT switch and to reconfigure between the band-stop and bandpass responses. The proposed absorptive FIS design could be used for internet of things (IoT) applications such as Zigbee and Bluetooth at an operation frequency of 2.45 GHz. As a result, the proposed FIS exhibited low magnitude of insertion loss and high isolation. Therefore, the key advantages of the proposed FIS design are low insertion loss, high isolation, and good return loss at both ON- and OFF-state ports.

Citation


Abdullah Mohammed Zobilah, Noor Azwan Shairi, Zahriladha Zakaria, Peng Wen Wong, Mohd Khairy Zahari, Mohammed Yahya Qaid Algumaei, and Zayed Abdo Abdullah Nasser, "Absorptive Filter Integrated Single Pole Double Throw Switch Using Switchable T-Shape Resonator for IoT Applications," Progress In Electromagnetics Research C, Vol. 103, 167-176, 2020.
doi:10.2528/PIERC20050503
http://www.jpier.org/PIERC/pier.php?paper=20050503

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