Frequency- and time-domain characterizations of ultrawideband tapered loop antennas

被引：12
|
作者：
Mao, Shau-Gang [1 ]
Chen, Shiou-Li [1 ]
机构：
[1] Natl Taipei Univ Technol, Grad Inst Comp & Commun Engn, Taipei 106, Taiwan
来源：
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2007年 / 55卷 / 12期
关键词：
antenna; propagation channel; pulse response; transfer function; ultrawideband (UWB);
D O I：
10.1109/TAP.2007.910494
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A novel ultrawideband (UWB) antenna that consists of a tapered loop radiator and a coplanar waveguide-to-coplanar stripline (CPW-to-CPS) transition is investigated in both frequency- and time-domain. Contrary to the conventional monopole/dipole-like UWB antennas, this tapered loop antenna has predominately magnetic near fields and hence the coupling due to nearby dielectric objects is less significant. The antenna possesses a wide impedance bandwidth from 3.1 to 10.6 GHz under the vertical bar S-11 vertical bar < -10 dB criterion, and shows similar radiation patterns and 3.3-7 dBi antenna gain in its operating band. The time-domain characteristic of the transmitting/receiving antenna system is described by antenna transfer function. The propagation channel considering reflection effect is represented as the sum of the contributions of different multipath components. The calculated time-domain pulse response of the UWB antenna-channel system is validated by measurement. Results indicate that the proposed antenna with broad bandwidth and low pulse distortion is a good candidate for UWB applications.
引用
收藏
页码：3698 / 3701
页数：4
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