期刊
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
卷 59, 期 2, 页码 390-397出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TAP.2010.2096399
关键词
Band-rejected UWB antenna; compact size; slot antenna; time-domain characteristics
资金
- Science Fund of China [U0635004]
- Science Fund of Guangdong [60571056]
Two compact ultrawideband (UWB) slot antennas with band-rejected characteristics are proposed for UWB communication applications. The entire size of both antennas is as small as 15 mm x 22 mm x 0.8 mm, which is smaller than most of the proposed UWB antennas. The radiator is a stepped slot excited by a 50 Omega feed line. By etching a half-wavelength and a quarter-wavelength slot from the ground plane of UWB slot antennas, respectively, two UWB antennas with band-notched characteristics can be obtained. The potential interference between UWB and WLAN/WiMAX can be reduced. Omnidirectional radiation patterns and constant gain can be observed in the pass bands. Time-domain characteristics of both proposed antennas are analyzed under different conditions. It demonstrates that the time-domain characteristics of the antennas are good enough for UWB applications. The results show that proposed antennas are very suitable for various portable UWB systems.
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