Frequency-Reconfigurable Coplanar Patch Antenna With Conical Radiation

被引：21
|
作者：
Row, Jeen-Sheen [1 ]
Lin, Ting-Yi [1 ]
机构：
[1] Natl Changhua Univ Educ, Dept Elect Engn, Changhua 500, Taiwan
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2010年 / 9卷
关键词：
Conical radiation; patch antenna; reconfigurable antenna;
D O I：
10.1109/LAWP.2010.2093118
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 design for frequency-reconfigurable antennas with conical-beam radiation is described. The design is based on the TM02 mode of a coplanar annular-ring microstrip antenna, and several shorting strips are symmetrically placed along the circumference of the radiating patch to vary its resonant frequency. The effects of the number of the shorting strips on the resonant frequency and radiation characteristic are respectively investigated. The obtained results indicate that the resonant frequency of the microstrip antenna has an increase of 33% when the number of the shorting strips is varied from 0 to 16. In addition, the antenna radiation can remain the conical beam pattern with the increasing of frequency. A frequency-reconfigurable prototype with electrical switching between 4.8 and 6 GHz has also been fabricated, and the experimental results are given.
引用
收藏
页码：1088 / 1091
页数：4
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