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本文给出两种由印制板组合的极化器——一为栅条型;一为网格型。前者单点频率特性好,后者具有宽频带特性。对于波导喇叭馈源,可将极化器做成平板状,罩在辐射口面前。文中给出的曲线和公式有助于简化设计计算。实验表明,栅条型极化器在20％的频带内驻波比小于1.1,圆极化轴比优于2dB,网格型极化器在不小于20％的频带内驻波比小于1.1,轴比优于1dB。
In this paper, two types of polarizers combined with printed boards are given, one for grid and one for grid. The former single-point frequency characteristics, the latter has a broadband feature. For the waveguide horn feed, polarizer can be made into a flat plate, cover in front of the radiation port. The curves and formulas given in this article help simplify design calculations. Experiments show that the grid polarizer has a VSWR of less than 1.1 in 20% frequency band and a circular polarization axis ratio of better than 2dB. The grid type polarizer has a VSWR of less than 1.1 in the frequency band of not less than 20% Shaft ratio better than 1dB.