螺旋耦合H○01H○02模式变换器的若干问题
SOME PROBLEMS ABOUT THE H○01H○02 MODE TRANSDUCER WITH SPIRAL COUPLING LINE
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摘要: 本文分析了圆波导中同心螺旋线内外的圆电波H○01、H◎01之间的耦合系数,指出了文献[1]关于H○01H○02模式变换器设计中的不妥之处。给出了较完整的设计公式。实验证实了本文的理论分析是正确的。在3237.5 GHz频率范围内,变换损耗低于0.6 dB,杂模(H○01)幅度低于15 dB,输入驻波比低于1.2。
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关键词:
Abstract: The coupling coefficient between circular-electric modes H○01 and H◎01 through a spiral line in circular waveguide is calculated. Certain corrections to S. E. Miller s design of a H○01H○02mode transducer are made. More complete design formulas are given. Agreement between experimental results and our theoretical calculations is attained. In the frequency range from 32 to 37.5 GHz, the conversion loss is less than 0.6 dB, the amplitude of unwanted mode (H○01) less than15 dB and the V. S. W. E less than 1.2. -
S. E. Miller, Wave Mode Converter, U. S. Pat. No. 3,020,459, Feb. 6. 1962.[2]S. E. Miller, BSTJ, 33(1954), 161.[3]S. E. Miller, High Frequency Power Dividing Networks, U. S. Pat. No. 2,820,202, Jan. 1958.[6]黄宏嘉,微波原理,科学出版社,1963.[7]H. G. Unger, BSTJ, 39(1960), 161.[9]王鸿昶,一种新型的H○01H○02模式变换器,微波学报(试刊),1981年,第2期,第29页. -
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