Title :
Multiple Band-Notched UWB Antenna With Band-Rejected Elements Integrated in the Feed Line
Author :
Fuguo Zhu ; Gao, Smith ; Ho, Anthony T. S. ; Abd-Alhameed, R.A. ; See, C.H. ; Brown, Tim W. C. ; Jianzhou Li ; Gao Wei ; Jiadong Xu
Author_Institution :
Surrey Space Centre, Univ. of Surrey, Guildford, UK
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.
Keywords :
antenna feeds; antenna radiation patterns; microstrip antennas; microwave antennas; slot antennas; ultra wideband antennas; band-rejected elements; dual notched bands; feed line; frequency 3.3 GHz to 3.6 GHz; frequency 5.15 GHz to 5.35 GHz; frequency 5.725 GHz to 5.825 GHz; half-circle shaped ground plane; half-circle shaped patch; multiple band-notched UWB antenna; radiation pattern; rectangular slot; single narrow notched band; single wide notched band; triple notched bands; wireless systems; Band-notched characteristic; UWB antenna; gain suppression; quarter-wavelength band-rejected elements;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2013.2260119