Ultra-wideband pentagonal fractal antenna with stable radiation characteristics for microwave imaging applications

Khan, Muhammad Abbas and Rafique, Umair and Savci, Hüseyin Serif and Nordin, Anis Nurashikin and Kiani, Saad Hassan and Abbas, Syed Muzahir (2022) Ultra-wideband pentagonal fractal antenna with stable radiation characteristics for microwave imaging applications. Electronics, 11 (13). pp. 1-11. E-ISSN 2079-9292

Preview	PDF (SCOPUS) - Supplemental Material Download (245kB) | Preview
	PDF (Article) - Published Version Restricted to Repository staff only Download (1MB) | Request a copy

Abstract

For microwave imaging applications, a design for an ultra-wideband (UWB) fractal antenna is presented. The antenna design is composed of a pentagonal fractal patch radiator fed by a modified co-planar waveguide (CPW) ground plane. It is built on a low-loss Rogers RT/Duroid 5880 dielectric substrate with a dimensions of 24 × 30 × 0.787 mm3. According to the measurements, the designed antenna offers a fractional bandwidth of 123.56% ranging from 3 GHz to 12.7 GHz. In addition, a maximum gain of 3.6 dBi is achieved at 8.5 GHz. From the results, it is also observed that the proposed antenna structure attains constant radiation characteristics in the operating bandwidth, which is useful for microwave imaging applications. The time domain analysis of the proposed design is also performed, and it is observed that the designed antenna offers a group delay of ≤1.5 ns, which ensures minimum pulse distortion.

Item Type:	Article (Journal)
Uncontrolled Keywords:	microwave imaging; ultra-wideband; fractal antenna; co-planar waveguide; fractional bandwidth; group delay
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7800 Electronics. Computer engineering. Computer hardware. Photoelectronic devices T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7800 Electronics. Computer engineering. Computer hardware. Photoelectronic devices > TK7885 Computer engineering
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Electrical and Computer Engineering Kulliyyah of Engineering
Depositing User:	Dr. Anis Nurashikin Nordin
Date Deposited:	08 Aug 2022 11:08
Last Modified:	23 Sep 2022 18:15
URI:	http://irep.iium.edu.my/id/eprint/99261

Actions (login required)

View Item