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引言机扫毫米波雷达天线缺少微波无惯性扫描天线的快速扫描能力。通常采用分立移相元件或多种变频方法用电的方法改变沿天线辐射孔径的相位实现无惯性波束扫描,利用这些方法得到幅射元件间的相位固有变化。由于要求的尺寸小、制作复杂及成本高等原因,微波领域中惯用的无惯性扫描技术对毫米波(30—300GHz)不甚适用。显然,在毫米波波段需要用新的设计原理实现电子扫描。美陆军电子技术和器件实验室 LABCOM 和美陆军电子战/侦察、监视和目标探测中心 CECOM 根据联合计划研制毫米波铁氧体介质波导相扫天线。此项目的研究成
INTRODUCTION The machine-sweep millimeter-wave radar antenna lacks the fast scanning capability of a microwave inertial-scanning antenna. In general, discrete phase-shifting elements or multiple frequency-converting methods are used to change the phase of the radiation aperture along the antenna to achieve inertial beam scanning. These methods are used to obtain inherent phase changes between radiating elements. Due to the small size requirements, complex fabrication and high cost reasons, the inertial inertial scanning techniques commonly used in the microwave field are not well suited for millimeter waves (30-300 GHz). Obviously, in the millimeter wave band requires the use of new design principles of electronic scanning. The US Army Laboratory for Electronics and Devices LABCOM and the US Army Electronic Warfare / Reconnaissance, Surveillance and Target Detection Center CECOM developed a millimeter wave ferrite dielectric waveguide phase sweep antenna based on a joint project. Research into this project