Work

Compact High-Scanning Rate Frequency Scanning Antenna Based on Composite Right/Left-Handed Transmission Line

Year: 2025

Type: article

Abstract: This paper proposes a miniaturized frequency-scanning antenna with high scanning rate. To overcome the OSB (open stopband) of traditional leaky wave antenna, CRLH-TL (Composite Right/Left-Handed-Transmission Line) is adopted. Furthermore, an antenna unit consisting of two symmetrically curved microstrip lines with two short branches is employed, whose second mode exhibits excellent transmission characteristics. The measurements demonstrate that the antenna can achieve scanning from −67.5° to 35.5° in the frequency band range of 5.65–6.5 GHz, with a scanning rate of 7.3. During scanning, the highest gain in the band is 12.3 dBi, the lowest is 10 dBi, and the gain fluctuation is within 2.3 dB, showing good scanning characteristics. Additionally, the length of the proposed antenna is approximately 3.84λ0 for a central frequency of 5.95 GHz.

Source: Journal of Low Power Electronics and Applications

DOI: 10.3390/jlpea15020018

Authors: Zongrui He, Kaijun Song, Jia Yao, Yedi Zhou

Institution: University of Electronic Science and Technology of China

Language: English

Topic: Antenna Design and Analysis

Subfield: Aerospace Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,172

Funder: National Natural Science Foundation of China