Slot-Coupled Fed 256-Element Planar Microstrip Array with Beam Stability for K-Band Water Level Sensing

Radar-based water-level monitoring requires antennas with narrow beams, high gain, and low sidelobes. Existing horn and series-fed microstrip arrays either lack compactness or suffer from frequency-dependent beam deviation that reduces sensing accuracy. This paper presents a 256-element slot-coupled...

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Bibliographic Details

Published in:	Sensors
Main Authors:	Kuang-Hsuan Huang, Yen-Sheng Chen
Format:	Article
Language:	English
Published:	MDPI AG 2025-09-01
Subjects:	slot-coupled microstrip arrays antenna arrays K-band radar sidelobe suppression water-level monitoring
Online Access:	https://www.mdpi.com/1424-8220/25/18/5904