A Low-Profile Broadband Quad-Polarization Reconfigurable Omnidirectional Antenna

被引：40

作者：

Cui, Yuehui ^{[1
]}

Qi, Changlong ^{[1
]}

Li, Ronglin ^{[1
]}

机构：

[1] South China Univ Technol, Sch Elect & Informat Engn, Guangzhou 510641, Guangdong, Peoples R China

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2019年 / 67卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Circular polarization (CP); linear polarization; omnidirectional antenna; polarization reconfigurable antenna; DIPOLE ANTENNA; PRINTED DIPOLE; PATCH ANTENNA; COMPACT; PATTERN; DESIGN; ARRAY;

D O I：

10.1109/TAP.2019.2905987

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 low-profile broadband quad-polarization reconfigurable omnidirectional antenna is presented. The quad-polarization antenna consists of a circular loop for horizontal polarization (HP) and a top-loaded monopole for vertical polarization (VP). The circular loop is composed of four arc dipoles excited by a broadband feeding network. The left-handed circular polarization (LHCP) is obtained by simultaneously feeding the circular loop and the top-loaded monopole with different phases. Two lambda g/2 phase shifters are introduced for the right-handed circular polarization (RHCP). The 12 p-i-n diodes are employed in the feeding network to realize the quad-polarization reconfiguration. It is shown that the bandwidth of the quad-polarization reconfigurable omnidirectional antenna overlapped for HP, VP, LHCP, and RHCP is about 28.6% (1.65-2.2 GHz) with good omnidirectional patterns. The total height of the antenna is about 0.09 lambda(0).

引用

页码：4178 / 4183

页数：6

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