Bandwidth enhancement design of single-layer slotted circular microstrip antennas

被引：21
|
作者：
Lu, JH [1 ]
机构：
[1] Natl Kaohsiung Inst Marine Technol, Dept Elect Commun Engn, Kaohsiung, Taiwan
来源：
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2003年 / 51卷 / 05期
关键词：
arc-shaped slot; bandwidth enhancement; microstrip antenna;
D O I：
10.1109/TAP.2003.811481
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：
By loading properly arranged slots in a single-layer circular microstrip antenna, the novel bandwidth enhancement design is proposed and experimentally studied by using a single probe feed. For the proposed broadband design, a pair of narrow arc-shaped slots is close to the side edges of the circular patch and connected with a narrow rectangular slot oriented along the excited surface current direction of the fundamental resonant mode of the unslotted circular patch. By properly adjusting the narrow rectangular slot's length, broadband operation of the proposed circular microstrip antenna near its fundamental resonant mode can be achieved. And, it is found that the obtained impedance bandwidth in the proposed design can be greater than 2.3 times that of a conventional unslotted circular microstrip antenna. Details of the proposed antenna designs are described, and typical experimental results are presented and discussed.
引用
收藏
页码：1126 / 1129
页数：4
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