Uniplandr log-periodic slot antenna fed by a CPW for UWB applications

被引：71

作者：

Chen, Shih-Yuan

Wang, Po-Hsiang

Hsu, Powen ^{[1
]}

机构：

[1] Natl Taiwan Univ, Dept Elect Engn, Taipei 10617, Taiwan

[2] Natl Taiwan Univ, Grad Inst Commun Engn, Taipei 10617, Taiwan

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2006年 / 5卷

关键词：

coplanar waveguides; log periodic antennas; slot antennas;

D O I：

10.1109/LAWP.2006.873956

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 coplanar waveguide-fed uniplanar log-periodic slot antenna suitable for use in the ultra-wideband radio systems is presented. The in-band impedances and radiation performances are quite stable and satisfactory. A rejected narrow frequency band is further obtained within the wide bandwidth by inserting, a pair of metallic stubs into two vertical slots of the proposed antenna. Experimental results reveal that the stub pair provides significant attenuation in the desired notched band but has little effect on the antenna operation outside of the notch. By means of a normalized antenna transfer function, the time-domain characteristics of the proposed antennas are also investigated. The transient responses show that the designs with and without the notched band are both acceptable for the pulsed systems.

引用

页码：256 / 259

页数：4

共 13 条

[1]

[Anonymous], 2002, FCC 1 REP ORD ULTR T

[2]

BAUM CE, 1998, P ULTR WID SHORT PUL, V4, P109

[3]

ELLIOTT RS, 2003, ANTENNA THEORY DESIG, P379

[4] Band-notched UWB planar monopole antenna with two parasitic patches [J].