volume | PIER Journals

Abstract

This paper presents a simple Liquid Crystal Polymer (LCP) substrate material-based frequency and pattern reconfigurable antenna for body-centric communication applications. The designed antenna is circular in shape with multiple spars in the radiating element. PIN diodes are arranged on either side of the lower portion at the concentric circular arc of the feed line for external switching. The upper portion of the radiating structure is connected with inductor and capacitor for proper impedance matching to attain the desired band of frequency. The constructed LCP substrate-based antenna is flexible in nature and conformal to the congregation surface in body area network applications. Frequency reconfigurability with switching between PCS (1.8-1.9 GHz) to WLAN (5.1-5.3 GHz) and ISM band (5.7-5.8 GHz) makes the model more appropriate for wearable applications with low specific absorption rate (SAR) less than 1.6 w/kg, which is in the standards. Additionally, the projected design demonstrates pattern reconfigurability with a 30-degree tilt at different switching conditions.

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Ms. Bendalam Alekhya

Professor Lokam Anjaneyulu