A Miniaturised Monopole Wideband Antenna with Reconfigurable Band Rejection for WLAN/WiMAX

Elfergani, Issa T. E.; Hussaini, Abubakar Sadiq; See, Chan H.; Rodriguez, Jonathan; Abd-Alhameed, Raed; Marques, Paulo

Abstract

This paper proposes a tuneable band-rejected miniaturised monopole antenna. The band-notching was achieved by printing an inner chorded crescent shape over the surface of the substrate. By placing a small varactor between the inner and outer arches, the centre frequency of each notch can be individually shifted downwards. The design of the proposed structure has a controllable rejection in the range from 2.38 to 3.87 GHz maintaining a wideband performance from 1.5 to 5 GHz based on VSWR ≤ 2. The antenna prototype was fabricated and tested. Simulated and measured results are performed and analysed. With a compact size, the proposed monopole antenna may well work as an internal antenna in a portable device.

• Presentation Conference Type: Conference Paper (Published)
• Conference Name: WICON 2014
• Start Date: Nov 13, 2014
• End Date: Nov 14, 2014
• Acceptance Date: Feb 10, 2015
• Online Publication Date: May 21, 2015
• Publication Date: 2015
• Deposit Date: Mar 19, 2019
• Journal: Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering; Wireless Internet
• Print ISSN: 1867-8211
• Electronic ISSN: 1867-822X
• Publisher: Springer
• Pages: 298-304
• Series Title: Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering
• Series Number: 146
• Book Title: International Wireless Internet Conference WICON 2014: Wireless Internet
• ISBN: 9783319188010
• DOI: https://doi.org/10.1007/978-3-319-18802-7_40
• Keywords: Monopole antenna, Tunability, VSWR, WLAN, WiMAX ,
• Public URL: http://researchrepository.napier.ac.uk/Output/1660526