Circular shape monopole antenna with modified ground plane proclaiming SWB characteristics
Author:
Kumar Ranjeet1, Sinha Rashmi1, Choubey Arvind2, Mahto Santosh Kumar3
Affiliation:
1. Department of Electronics & Communication Engineering , National Institute of Technology , Jamshedpur , India 2. Department of Electronics & Communication Engineering , Indian Institute of Information Technology , Bhagalpur , India 3. Department of Electronics & Communication Engineering , Indian Institute of Information Technology , Ranchi , Jharkhand , 834010 , India
Abstract
Abstract
Modern communication systems require an antenna with miniaturized size and large bandwidth with high data rate. In this article, a circular monopole antenna is presented with hexagonal patch on both sides of microstrip feedline and an I- shaped rectangular slot etched at the center of feedline to provide impedance matching. The modified loaded ground reduces the coupling between ground plane and radiation patch. This antenna has compact dimension of 30 mm × 25 mm with electrical size of 0.25λ × 0.20λ. This antenna has been designed and simulated in HFSS commercial software and fabricated on FR4 substrate of thickness 1.6 mm with relative permittivity 4.4, loss tangent of 0.02. The experimental results are compared with simulated one, which are in close agreement. It attains a frequency band ranging from 2.4 to 56.6 GHz with reflection coefficient <−10, percentage bandwidth of 183.72%, Bandwidth Ratio (BR) 23.58:1, and Bandwidth Dimension Ratio (BDR) of 3674.40. The peak gain and radiation efficiency of this antenna is 12.77 dBi and 98.82% at 45.84 and 5.6 GHz respectively. Time domain analysis has been done, which proclaims that the proposed antenna has SWB characteristics. It may be useful for high data rate transmission, medical imaging, and other SWB applications.
Publisher
Walter de Gruyter GmbH
Subject
Electrical and Electronic Engineering
Reference20 articles.
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