Title :
UWB Circular Monopole Ominidirectional Antenna with a Slot for Radiation Pattern Improvement
Author :
Wang, Junjun ; Sun, Xiaobing ; Okada, Kanzo
Author_Institution :
Sony Electron. (Singapore) Pte Ltd., Singapore
Abstract :
An ultra wideband (UWB) circular monopole antenna consisting of a ground plane, a radiating element and a feed member is proposed in this paper. The radiating element comprises a simple circular metal patch, with a slot on one side of the patch. This slot can decrease the gain variation in the y-z plane of the radiation pattern and increase the impedance bandwidth. The whole size of the antenna is 30 x 30 x 0.813 mm3. The measured -10 dB impedance bandwidth of the circular monopole antenna is from 2.3 GHz to 6.1 GHz. The gain variation is less than or around 15 dB in the y-z plane and below 7 dB in the x-z plane over the operating bandwidth.
Keywords :
UHF antennas; antenna radiation patterns; microstrip antennas; microwave antennas; monopole antennas; ultra wideband antennas; UWB circular monopole ominidirectional antenna; circular metal patch; feed member; frequency 2.3 GHz to 6.1 GHz; ground plane; radiating element; radiation pattern; Antenna feeds; Antenna radiation patterns; Bandwidth; Broadband antennas; Coplanar waveguides; Frequency; Impedance; Microstrip antennas; Slot antennas; Ultra wideband antennas; Circular monopole antenna; UWB; radiating element; radiation pattern;
Conference_Titel :
Ultra-Wideband, 2007. ICUWB 2007. IEEE International Conference on
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-0521-3
Electronic_ISBN :
978-1-4244-0521-3
DOI :
10.1109/ICUWB.2007.4380992
