Open Access

ARTICLE

A Compact Rhombus Shaped Antenna with Extended Stubs for Ultra-Wideband Applications

by Syed Misbah un Noor¹, Muhammad Amir Khan², Shahid Khan³, NZ Jhanjhi^4,*, Mamoona Humayun⁵, Hesham A. Alhumyan⁶

1 Department of Electrical Engineering, IIC University of Technology, Phnom Penh, Cambodia
2 Department of Computer Science, COMSATS University Islamabad, Abbottabad Campus, 22060, Pakistan
3 Department of Electrical and Computer Engineering, COMSATS University Islamabad, Abbottabad Campus,22060, Pakistan
4 School of Computer Science, SCS, Taylor’s University, Subang Jaya, 47500, Selangor, Malaysia
5 Center for Smart Society 5.0, CSS5 Faculty of Innovation and Technology, Taylor’s University, Subang Jaya, 47500, Malaysia
6 Department of Information Systems, College of Computer and Information Sciences, Jouf University, Al-Jouf, KSA

* Corresponding Author: NZ Jhanjhi. Email:

Computers, Materials & Continua 2022, 73(2), 2637-2650. https://doi.org/10.32604/cmc.2022.026061

Received 14 December 2021; Accepted 23 March 2022; Issue published 16 June 2022

Abstract

Ultra-wideband (UWB) is highly preferred for short distance communication. As a result of this significance, this project targets the design of a compact UWB antennas. This paper describes a printed UWB rhombus-shaped antenna with a partial ground plane. To achieve wideband response, two stubs and a notch are incorporated at both sides of the rhombus design and ground plane respectively. To excite the antenna, a simple microstrip feed line is employed. The suggested antenna is built on a 1.6 mm thick FR4 substrate. The proposed design is very compact with overall electrical size of 0.18λ × 0.25λ (14 × 18 mm²). The rhombus shaped antenna covers frequency ranging from 3.5 to 11 GHz with 7.5 GHz impedance bandwidth. The proposed design simulated and measured bandwidths are 83.33% and 80%, respectively. Radiation pattern in terms of E-field and H-field are discussed at 4, 5.5 and 10 GHz respectively. The proposed design has 65% radiation efficiency and 1.5 dBi peak gain. The proposed design is simulated in CST (Computer Simulation Technology) simulator and the simulated design is fabricated for the measured results. The simulated and measured findings are in close resemblance. The obtained results confirm the application of the proposed design for the ultra-wide band applications.

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Keywords

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