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通常天线实现圆极化方法,采用双馈点激励,且加90度移相器,结构较复杂.本文介绍几种单馈点圆极化方法,不需加90度移相器,只要在圆盘的周界上或中心处开槽,就能获得圆极化,这种结构简单方便,具有许多优点.除在边界开槽外,也可在圆周界上突出一段带线,同样也可实现圆极化.本文也对微带圆盘天线的几个特性作了论述,可
Usually the antenna to achieve circular polarization method, the use of doubly-fed point excitation, and plus 90 degree phase shifter, the structure is more complex.This article describes several single-feed point circular polarization method, without adding 90 degree phase shifters, as long as the circle A circular polarization can be obtained by grooving at or around the perimeter of the disk, which is simple and convenient and has many advantages. In addition to notching at the boundaries, it is also possible to project a band of lines on the perimeter, Circular polarization.This paper also discusses several characteristics of the microstrip antenna