A Frequency- and Pattern-Reconfigurable Two-Element Array Antenna

被引：103

作者：

Zainarry, Siti Nailah Mastura ^{[1
]}

Nghia Nguyen-Trong ^{[2
]}

Fumeaux, Christophe ^{[1
]}

机构：

[1] Univ Adelaide, Sch Elect & Elect Engn, Adelaide, SA 5005, Australia

[2] Univ Queensland, Elect & Elect Engn Dept, St Lucia, Qld 4072, Australia

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2018年 / 17卷 / 04期

关键词：

Antenna arrays; frequency-reconfigurable antennas; patch antennas; pattern-reconfigurable antennas; varactors;

D O I：

10.1109/LAWP.2018.2806355

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 frequency- and pattern-reconfigurable two-element array antenna based on a stub-loaded configuration is presented. The frequency-tuning mechanism is implemented using varactor diodes loaded with open stubs. Two independent bias voltages allow to independently add pattern reconfigurability to the array. This is achieved by slightly detuning the resonances of the two patches, thus introducing a beam-steering relative phase difference between them. The design is optimized for a relative frequency tuning range of 10% extending from 2.15 to 2.38 GHz, within which it presents a continuously beam-steerable radiation pattern covering scanning angles from -23 degrees to + 23 degrees across broadside. An antenna prototype is experimentally characterized, which validates the proposed concept.

引用

页码：617 / 620

页数：4

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