波导同轴连接器主要特性的测量方法及数学模型

E. M. Glushechenko
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引用次数: 1

摘要

现代复杂的微波无线电电子系统可以使用在不同类型的传输线上实现的功能设备。为了将这些器件相互连接形成天馈系统,可以使用以下三种特殊连接器:同轴、波导和基于波导和同轴段的组合微波器件。波导同轴连接器(WCC)的主要电气特性是器件对天线馈电的损耗,并与常规微波路径(电压驻波比,VSWR)相匹配。用于测量同轴或波导连接器特性的标准方法和标准设备不能用于wcc。本文提出了一种测量波导同轴连接器主要特性的方法,并给出了其数学模型(波矩阵)。以纵向同轴型波导同轴连接器为例,对所提出的微波特性测量方法进行了验证。应该指出的是,所提出的技术已经在许多特定的设备上进行了实验测试。不仅研究了不同频率范围(波导尺寸从23×5到58×25 mm)的波导同轴连接器,而且还研究了不同同轴通道设计(尺寸为3.5/1.52;6.0/2.6和7.0/3.04毫米)。该方法对波导同轴连接器的特性进行了可重复的测量,验证了该方法的可靠性。
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Measurement methods and mathematical model of main characteristics of waveguide-coaxial connectors
Modern complex microwave radio electronic systems may use functional devices implemented on different types of transmission lines. In order to connect such devices to each other to form antenna feed system, the following three types of special connectors can be used: coaxial, waveguide, and combined microwave devices based on waveguide and coaxial segments. The main electrical characteristics of waveguide coaxial connectors (WCC) are the losses introduced by the device to the antenna feed and matching with the regular microwave path (voltage standing-wave ratio, VSWR). Standard methods and standard equipment used to measure the characteristics of coaxial or waveguide connectors cannot be applied to WCCs. This article proposes a method designed to measure the main characteristics of waveguide-coaxial connectors and presents their mathematical model (wave matrices). The proposed methods of measuring microwave characteristic are demonstrated on the example of waveguide coaxial connectors of longitudinal coaxial type. It should be noted that the proposed technique has been experimentally tested on a number of specific devices. Not only the waveguide coaxial connectors have been studied in different frequency ranges (waveguide sizes from 23×5 to 58×25 mm), but also with different coaxial channel designs (sizes 3.5/1.52; 6.0/2.6 and 7.0/3.04 mm). The proposed method provides replicable measurements results of the characteristics of waveguide coaxial connectors, which confirms its reliability.
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