Multiple Band-Notched UWB Antenna With Band-Rejected Elements Integrated in the Feed Line

Zhu, Fuguo; Gao, Steven; Ho, Anthony TS; Abd-Alhameed, Raed A.; See, Chan H.; Brown, Tim W C; Li, Jianzhou; Wei, Gao; Xu, Jiadong

Abstract

To mitigate potential interferences with coexisting wireless systems operating over 3.3-3.6 GHz, 5.15-5.35 GHz, or 5.725-5.825 GHz bands, four novel band-notched antennas suitable for ultra-wideband (UWB) applications are proposed. These include UWB antennas with a single wide notched band, a single narrow notched band, dual notched bands, and triple notched bands. Each antenna comprises a half-circle shaped patch with an open rectangular slot and a half-circle shaped ground plane. Good band-notched performance is achieved by using high permittivity and low dielectric loss substrate, and inserting quarter-wavelength horizontal/vertical stubs or alternatively embedding quarter-wavelength open-ended slots within the feed line. The results of both simulation and measurement confirm that the gain suppression of the single and multiple band-notched antennas in each desired notched band are over 15 dB and 10 dB , respectively. The radiation pattern of the proposed triple band-notched design is relatively stable across the operating frequency band.

• Journal Article Type: Article
• Acceptance Date: Apr 18, 2013
• Online Publication Date: Apr 29, 2013
• Publication Date: 2013-08
• Deposit Date: Mar 15, 2019
• Journal: IEEE Transactions on Antennas and Propagation
• Print ISSN: 0018-926X
• Publisher: Institute of Electrical and Electronics Engineers
• Peer Reviewed: Peer Reviewed
• Volume: 61
• Issue: 8
• Pages: 3952-3960
• DOI: https://doi.org/10.1109/tap.2013.2260119
• Keywords: Band-notched characteristic, gain suppression, quarter-wavelength band-rejected elements, UWB antenna.
• Public URL: http://researchrepository.napier.ac.uk/Output/1662716