Scalar Highly Directive Circularly Polarized Full- and Half-Structured Holographic Metasurface-Based Ku-Band Leaky-Wave Antenna

被引：1

作者：

Ghosh, Swarnadipto ^{[1
]}

Priyadarshan, H. ^{[1
]}

Saha, Chinmoy ^{[1
]}

机构：

[1] Indian Inst Space Sci & Technol, Dept Avionics, Thiruvananthapuram 695547, India

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2024年 / 23卷 / 10期

关键词：

Circular polarization; holographic metasurface; leaky-wave antenna (LWA); progressive phase; scalar metasurface; BEAM FORMATION; DESIGN;

D O I：

10.1109/LAWP.2024.3429556

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：

Scalar meta unit-cell loaded, progressive phase modulated, circularly polarized (CP), holographic metasurface-based leaky-wave antenna (HMSLWA) is reported in this letter. A comprehensive numerical and analytical description of rectangular to polar transformed, progressive phase modulated surface impedance (Z(surf)) expression is discussed with necessary simulated and measured data validation of proposed half- and full-structured HMSLWA. Proposed full- and half-structured HMSLWA, having an overall dimension of 12.5 lambda(0 )x 12.5 lambda(0)and 12.5 lambda(0 )x 6.5 lambda(0 yields highly) directive central beam (i.e.,theta=phi=0 degrees) with a maximum realized gain of g(max)=25.11 and 21.17 dBic with 3.9 degrees and 4.3 degrees HPBW at f(r)=15.51 GHz. A wide axial ratio bandwidth (ARBW)is achieved with an overall AR of <= 0.9 dB

引用

页码：3183 / 3187

页数：5