Dual Reconfigurable Antenna Using Capacitive Coupling Slot and Parasitic Square Ring

被引：0
|
作者：
Abou Al-Alaa, M. [1 ]
Elsadek, H. A. [1 ]
Abdallah, E. A. [1 ]
机构：
[1] Elect Res Inst, El Tahreer St Dokki, Giza, Egypt
来源：
2014 IEEE 25TH ANNUAL INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR, AND MOBILE RADIO COMMUNICATION (PIMRC) | 2014年
关键词：
Microstrip patch antenna; reconfigurable antenna; frequency reconfigurability; polarization reconfigurability; parasitic square ring; linear polarization; circular polarization; POLARIZATION; FREQUENCY;
D O I：
暂无
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 square patch antenna with both frequency and polarization reconfigurability is presented. The antenna consists of a square patch with coplanar feed on the ground plane. On the patch side, there is a parasitic square ring that responsible for changing the antenna polarization. On the ground plane, there is a rectangular slot by changing of length of this slot the antenna resonance frequency can be changed. The antenna operates at 1.57 and 2.45 GHz that used in UPS and Bluetooth applications, respectively. The length of the slot length in the proposed antenna is 40 mm, then the antenna operates at the lower frequency (1.57 GHz). By using switches in the ground plane the slot length can he adjust to 24 mm so the antenna operates at upper frequency (2.45 GHz). Two switches are mounted on the parasitic ring at optimized positions. By switching between the different states of these two switches, the proposed antenna operates with linear polarization (LP) and circular polarization (UP) at each operating frequency. The antenna gain at 1.57 and 2.45 GHz are 5.9 and 7.64 dBi respectively. The antenna is analyzed using the CST Microwave Studio. The proposed antenna was fabricated and measured. Results comparison shows good agreement.
引用
收藏
页码：1918 / 1920
页数：3
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