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前言本文介绍一种新型螺旋天线设计及其测量特性。这种改进的螺旋天线在整个半功率波瓣宽度内,使园极化性能大大提高,最适用于往往要求园极化纯度高和边缘复盖增益最小的宇宙通讯。就某些宇宙飞行器应用而言,要求天线的技术特性不仅有一定的峰值增益,而且在整个视域内满足一定的边缘复盖增益。若用园极化,则螺旋天线是许多可供选择对象之一。为设计一个能同时满足给定的峰值增益和边缘复盖增益这两个要求的螺旋天线,偏轴轴比起着重要作用。工作在轴向辐射模的螺旋天线的基本设计原理已由 J.D.克劳斯给出。关于螺旋天线的很多理论和实验工作都已相继开展。
Preface This article describes a new type of helical antenna design and its measurement characteristics. This improved helical antenna greatly enhances the polarization performance of the cell over the full half-power lobe width, making it most suitable for space communications that often require the highest degree of circular polarization and the lowest edge coverage gain. For some spacecraft applications, the technical characteristics of the antenna are required to have not only a certain peak gain, but also certain marginal coverage gain over the entire field of view. If the polarization of the garden, the spiral antenna is one of many options available. Off-axis axes play an important role in designing a helical antenna that satisfies both the given peak gain and edge coverage gain requirements. The basic design principle of a helical antenna operating in an axial radiation mode has been given by J.D. Klaus. Many theoretical and experimental work on the helical antenna have been carried out.