Arc-shaped strip in radiating patch with rectangular stubbed ground plane for wideband applications

Authors

DOI:

https://doi.org/10.3103/S0735272719100030

Keywords:

wideband, microstrip antenna, stub, housing effect, fractional bandwidth

Abstract

A printed planar antenna having compact dimensions of 0.35×0.25λ mm2 and fed by a microstrip line for wideband applications is presented. The proposed antenna consists of a radiating patch, a new arc-shaped strip, microstrip feed line, and a rectangular stub loaded ground plane. Furthermore, the ground plane of the fundamental radiator is modified to improve the voltage standing wave ratio (VSWR) bandwidth. A rectangular stub is added inside the ground plane to provide the bandwidth to suit the modern automotive requirements. We have analyzed the proposed antenna in terms of VSWR, reflection loss, gain, radiation pattern, and the housing effect. The measured results indicate that the antenna achieves a wide useable fractional bandwidth ratio of 129% at VSWR ≤ 2, ranging from 4.8 to 21.7 GHz. A measured bandwidth of 119% at VSWR ≤ 1.5 (5.5–20.9 GHz) is obtained. Stable quasi-omnidirectional radiation patterns with an acceptable gain of 4.87 dBi are achieved.

Author Biography

Iram Nadeem, Chosun University

Iram Nadeem received her M.S. in Telecommunication Engineering (Major:
Optical Fiber Communication) and her B.S. in Electrical Engineering from the
University of Engineering and Technology (UET) Taxila , Pakistan in 2014 and
2010. She is currently pursuing her Masters in Information and Communication
Engineering from Chosun University South Korea. She had worked as Lecturer and Lab Engineer in different engineering institutes of Pakistan. Her research interests include optical fiber communication, microwave and satellite communication, antenna design, and wave propagation.

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Published

2019-11-24

Issue

Vol. 62 No. 10 (2019)

Section

Research Articles