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一、前言本文讨论了在甚高频频带采用巴特勒矩阵的多波束天线设计方法并进行了试制实验。在天线设计过程中,考虑到加工难易等对经济效益的影响,把有效的印刷技术运用到辐射元、馈电电路以及巴特勒矩阵等所有部分上。此外,为能使极化分集,用两块圆板作辐射元,以实现极化公用。本报告讨论了在辐射元以及巴特勒矩阵中各种电气特性变坏的原因和最佳构成方法,在900兆赫,试制了在120°范围内辐射8根波束的天线。二、多波束天线的基本构造多波束天线如图1所示,它由辐射器和巴
I. INTRODUCTION This paper discusses the design of a multi-beam antenna using a Butler matrix in the VHF band and a pilot experiment. In the antenna design process, taking into account the processing difficulties and other economic benefits, the effective printing technology to the radiator, feeder circuit and all parts of the Butler matrix. In addition, in order to polarization diversity, with two circular plates for the radiation element, in order to achieve polarization common. This report discusses the causes and best practices for the deterioration of various electrical characteristics in radiating elements and Butler matrices. Antenna radiating 8 beams at 120 ° was trialled at 900 MHz. Second, the basic structure of multi-beam antenna Multi-beam antenna shown in Figure 1, which consists of radiators and Pakistan