Electronically steered metasurface antenna

被引：83

作者：

Boyarsky, Michael ^{[1
]}

Sleasman, Timothy ^{[1
]}

Imani, Mohammadreza F. ^{[1
]}

Gollub, Jonah N. ^{[1
]}

Smith, David R. ^{[1
]}

机构：

[1] Duke Univ, Ctr Metamat & Integrated Plasmon, Dept Elect & Comp Engn, Durham, NC 27708 USA

来源：

SCIENTIFIC REPORTS | 2021年 / 11卷 / 01期

关键词：

D O I：

10.1038/s41598-021-83377-9

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Mobile devices, climate science, and autonomous vehicles all require advanced microwave antennas for imaging, radar, and wireless communications. We propose a waveguide-fed metasurface antenna architecture that enables electronic beamsteering from a lightweight circuit board with varactor-tuned elements. Our approach uses a unique feed structure and layout that enables spatial sampling at the Nyquist limit of half a wavelength. We detail the design of this Nyquist metasurface antenna and experimentally demonstrate electronic beamsteering in two directions. Nyquist metasurface antennas can realize high performance without costly and power hungry phase shifters, making them a compelling technology for future antenna hardware.

引用

页数：10

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