IEC 60153-3:1964 pdf download 中空金属波导管 - 第3部分：矩形扁平波导的相关规范 Hollow metallic waveguides. Part 3: Relevant specifications for flat rectangular waveguides

IEC 60153-3:1964 pdf download,Hollow metallic waveguides. Part 3: Relevant specifications for flat rectangular waveguides.
中空金属波导管 - 第3部分：矩形扁平波导的相关规范
Standardized types
The series of rectangular flat waveguides covered by this publication are shown in Table I.
Type designation
For these waveguides the type designation comprises:
a)The code:153 IEC-F
b)A number characterizing a particular size of waveguide.This number expresses approximately in multiples of 100 MHz (Mc/s) the geometric mean frequency of the recommended frequency range.
Frequency range
The frequency range indicated in Table I is from 1.25 to 1.9 times the cut-off frequencyin the dominant mode.For any particular type of application the working frequency range may be smaller or greater than the frequency range given in the table.
标准化类型
本出版物涵盖的矩形扁平波导系列如表I所示。
型号含义
对于这些波导管，型号名称包括：
a） 代码：153 IEC-F
b） 表征波导管特定尺寸的一个数字。该数字近似以100MHz（Mc/s）的倍数表示推荐频率范围的几何平均频率。
频率范围
表I中所示的频率范围是主模式中截止频率的1.25到1.9倍。对于任何特定类型的应用，工作频率范围可以小于或大于表中给出的频率范围。