Novel Frequency- and Pattern-Reconfigurable Rhombic Patch Antenna With Switchable Polarization

被引：71
作者：
Selvam, Yogeshwari Panneer [1 ]
Elumalai, Lavanya [1 ]
Alsath, M. Gulam Nabi [2 ]
Kanagasabai, Malathi [1 ]
Subbaraj, Sangeetha [1 ]
Kingsly, Saffrine [1 ]
机构：
[1] Anna Univ, Dept Elect & Commun Engn, Madras 600025, Tamil Nadu, India
[2] SSN Coll Engn, Dept Elect & Commun Engn, Madras 603110, Tamil Nadu, India
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2017年 / 16卷
关键词：
Multifrequency antennas; patch antenna; reconfigurable antennas; WLAN APPLICATIONS; SLOT ANTENNA; WIMAX;
D O I：
10.1109/LAWP.2017.2660069
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：
This letter presents the design of a novel patch antenna with frequency and pattern reconfiguration with polarization switching. The proposed antenna consists of a rhombus-shaped radiator with three excitation lines oriented at different angles. All the excitation lines are connected to a common feedline. The reconfiguration is achieved by changing the bias states of three pairs of p-i-n diodes. The dynamic nature of the antenna offers two operating bands, viz., 5.2/5.8 GHz, and provides linear/circular/+/- 45 degrees slant polarization. Furthermore, the pattern can be tilted 30 degrees in right-and left-hand directions. The proposed antenna exhibits cross-polarization discrimination greater than 20 dB in all the operating modes. The prototype antenna is fabricated, and the simulation results are verified using measurements.
引用
收藏
页码：1639 / 1642
页数：4
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