Title :
Improved Frequency Notched Ultrawideband Slot Antenna Using Square Ring Resonator
Author :
Lui, Wen-Jun ; Cheng, Chong-Hu ; Hong-Bo Zhu
Author_Institution :
Nanjing Univ. of Posts & Telecommun., Nanjing
Abstract :
An improved frequency notched ultrawideband (UWB) microstrip slot antenna with a square ring resonator embedded in the tuning stub is proposed. The antenna is investigated numerically and experimentally for its impedance matching property, frequency notched characteristic and radiation performance in detail. As will be reported, compared with conventional frequency notched slot antennas, after incorporating a square ring resonator with the slot antenna´s tuning stub, high, sharp band-rejection characteristic of over 20 dB is achieved, which is improved significantly.
Keywords :
antenna radiation patterns; microstrip antennas; resonators; slot antennas; ultra wideband antennas; UWB microstrip slot antenna; frequency notched ultrawideband slot antenna; radiation performance; square ring resonator; tuning stub; Dipole antennas; Frequency; Impedance matching; Microstrip antennas; Optical ring resonators; Prototypes; Slot antennas; Tuning; Ultra wideband antennas; Ultra wideband technology; Frequency notched; slot antenna; square ring resonator; ultrawideband (UWB);
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2007.904090
