Single-Layer Wide-Angle Scanning Linear Phased Arrays Based on Multimode Microstrip Patch Elements
Dongsheng Li, Jie Yang, Jianing Zhao, Yongzhen Dong, Hao Li, Tianming Li, Haiyang Wang, Biao Hu, Yihong Zhou, Fang Li, Ruoyang Yang
TL;DR
A new microstrip patch antenna design achieves wide-angle scanning capabilities, enabling effective performance over a broad frequency range.
Contribution
A novel single-layer microstrip patch element is introduced that simultaneously excites multiple modes to achieve a wide beamwidth.
Findings
The element achieves a 3 dB beamwidth of approximately 150° in both principal planes.
Linear phased arrays using this element demonstrate wide-angle scanning from −60° to 60° with minimal gain loss.
The design operates effectively in the 25 GHz to 28 GHz frequency range.
Abstract
This paper introduces a novel single-layer microstrip patch element designed to achieve a wide beamwidth, in order to address the growing demand for wide-angle scanning capabilities in modern phased array systems. The proposed element, comprising a slot-etched circular patch and an array of metallized holes arranged in square rings, offers a unique approach to beam shaping. By carefully adjusting parameters such as the slot structure and feeding position, our element is engineered to simultaneously excite both the TM01 and TM21 modes, a key feature that contributes to its wide beamwidth characteristics. Through the constructive interference of these modes, our element demonstrates a remarkable 3 dB beamwidth of approximately 150° in both principal planes, showcasing its potential for wide-angle scanning applications. To validate the practical performance of this proposed element, two…
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Taxonomy
TopicsAntenna Design and Analysis · Advanced Antenna and Metasurface Technologies · Microwave Engineering and Waveguides