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Design of a bandwidth enhanced hybrid slot loop antenna for GSM/UWB standards

Partibane B. (Department of Electronics and Communication, Sri Sivasubramaniya Nadar College of Engineering, Chennai, India)
Gulam Nabi Alsath M. (Department of Electronics and Communication, Sri Sivasubramaniya Nadar College of Engineering, Chennai, India)
Kalidoss Rajakani (Department of Electronics and Communication, Sri Sivasubramaniya Nadar College of Engineering, Chennai, India)

Circuit World

ISSN: 0305-6120

Article publication date: 7 August 2017

Abstract

Purpose

This paper aims to presents the bandwidth enhancement of a hybrid slotloop antenna using a modified feed structure.

Design/methodology/approach

The conventional monopole feed of the hybrid slotloop radiator is loaded with a flat microstrip patch to excite higher-order modes. The proposed antenna combines the resonant modes of the slot antenna, the loop antenna and the patch loading.

Findings

The antenna exhibits a dual-band response suitable for GSM 1800/1900 and ultrawideband (UWB) standards. The impedance bandwidth extends from 1.65 to 1.95 GHz (11.42 per cent) and 3 to 11.1 GHz (114.9 per cent). The proposed antenna has the smallest footprint with a peak gain of 5.07 dBi at 1.8 GHz and 4.97 dBi at 6 GHz. The prototype antenna is fabricated and the simulation results are validated using experimental measurements. The performance of the bandwidth-enhanced hybrid slotloop antenna is compared with that of other slot antennas.

Originality/value

Thus, a hybrid slotloop antenna with an enhanced bandwidth has been reported in this study. The conventional monopole feed of the antenna is replaced with a monopole ending with a microstrip patch load. The antenna covers the operating bands of GSM 1800/1900 and UWB. The proposed antenna has a smaller footprint compared with other wide-slot antennas reported in the literature.

Keywords

Citation

B., P., M., G.N.A. and Rajakani, K. (2017), "Design of a bandwidth enhanced hybrid slot loop antenna for GSM/UWB standards", Circuit World, Vol. 43 No. 3, pp. 105-110. https://doi.org/10.1108/CW-03-2017-0009

Publisher

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Emerald Publishing Limited

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