电子学报2025，Vol.53Issue(3)：782-789,8.DOI:10.12263/DZXB.20240447
基于慢波基片集成波导的高增益连续扫描周期漏波天线
Slow-Wave SIW Periodic Leaky-Wave Antenna with Increased Gain and Continuous Beam Scanning Through Broadside
摘要
Abstract
A substrate integrated waveguide(SIW)periodic leaky-wave antenna(PLWA)with increased gain and continuous beam scanning through broadside is proposed by loading slow-wave(SW)structures.Slow wave structure in the form of periodic blind via-holes with loaded patches decelerates the phase velocity of the electromagnetic wave traveling in SIW,reducing the guided wavelength by 50%.Compared with normal SIW PLWA,the distance between the adjacent radi-ating slots in the proposed SW-SIW PLWA is decreased by half,allowing twice as many radiating slots in SW-SIW PLWA with the same length.Therefore,the radiation efficiency and the gain of SW-SIW PLWA can be significantly increased.Fur-thermore,the loaded patches of slow wave structure under the radiating slots are extended to improve the impedance match of the radiating slots and suppress the reflected wave,so the open-stopband(OSB),which is a common drawback of the PLWA,is suppressed.In consequence,the radiation beam can scan from backward to forward direction continuously.A pro-totype of the proposed SW-SIW PLWA is manufactured and measured,the scanning angle of the proposed PLWA reaches 72.7° during the operating frequency range of 13.4～15.4 GHz with maximum gain of 8.47 dBi.The measured results agree well with the simulations.关键词
周期漏波天线/基片集成波导/慢波/开阻带/连续扫描Key words
periodic leaky-wave antenna/substrate integrated waveguide/slow wave/open-stopband/continuously scanning分类
信息技术与安全科学引用本文复制引用
尹佳媛,吴简,邓敬亚,周世钢,曹新月..基于慢波基片集成波导的高增益连续扫描周期漏波天线[J].电子学报,2025,53(3):782-789,8.基金项目
陕西省自然科学基础研究项目(No.2023-JC-YB-499) （No.2023-JC-YB-499）
毫米波国家重点实验室开放课题(No.K202318) （No.K202318）
西安电子科技大学杭州研究院概念验证项目(No.GNYZ2023XJ0204) Natural Science Basic Fundamental Program of Shaanxi Province(No.2023-JC-YB-499) （No.GNYZ2023XJ0204）
Open Project of Southeast University State Key Laboratory of Millimeter Waves(No.K202318) （No.K202318）
Proof of Concept Foundation of Xidian University Hangzhou Institute of Technology(No.GNYZ2023XJ0204) （No.GNYZ2023XJ0204）
