Vol. 96

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2019-12-18

A Novel Reconfigurable Bandpass Filtering Antenna for IoT Communication Applications

By Vamsee Krishna Allam, Boddapati Taraka Madhav, Tirunagari Anilkumar, and Suman Maloji
Progress In Electromagnetics Research C, Vol. 96, 13-26, 2019
doi:10.2528/PIERC19070805

Abstract

This paper presents a novel reconfigurable filtering antenna with three tunable states used for IoT applications. The frequency reconfigurability is achieved using the combination of a hairpin filter and an open loop filter in the structure with the switching of p-i-n diodes. The open-loop filter structure provides two narrow band states at 2.4 GHz and 7.8 GHz, and the hairpin filter provides a single narrow band state at 10.4 GHz. The frequency reconfiguration is obtained without compromising the compact size of the designed circuit along with the targeted frequency bands at lower WLAN (2.47 GHz), WiMAX (3.42 GHz), INSAT C-band (7.18 GHz), fixed/mobile satellite service in X-band (8.4 GHz), direct broadcast service in Ku-band (12.14 GHz) applications. The prototype is constructed on an FR4 substrate and tested for validation in an anechoic chamber. The designed antenna provides excellent radiation characteristics and considerable gain at resonant frequencies. The proposed reconfigurable antenna is also tested using the CDAC Cmote device in the real-time environment and found more suitable for the IoT based communication applications.

Citation


Vamsee Krishna Allam, Boddapati Taraka Madhav, Tirunagari Anilkumar, and Suman Maloji, "A Novel Reconfigurable Bandpass Filtering Antenna for IoT Communication Applications," Progress In Electromagnetics Research C, Vol. 96, 13-26, 2019.
doi:10.2528/PIERC19070805
http://jpier.org/PIERC/pier.php?paper=19070805

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