A 14 GHz-Low Noise-Down-Converter with Sum and Image Rejection

1976 6th European Microwave Conference Pub Date : 1976-10-01 DOI:10.1109/EUMA.1976.332356

D. Dobramysl

引用次数: 1

Abstract

The design and the experimental performance of a single-ended waveguide-mixer operating at a signal frequency of 14 GHz - 14.5 GHz and an IF of 3.7 GHz to 4.2 GHz is reported. The conversion loss over the IF bandwidth of 500 MHz was < 3.5 dB. The optimum load impedance for the mixer diode at the sum frequency is provided by a bandstop-filter, whereas at the image-frequency band the cut-off property of the waveguide is used. Also the theory of the mixing process of a Z and Y mixer is given. A computer analysis of the influence of the diode series resistance and junction capacitance on the conversion loss is presented.

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一种14ghz低噪声和图像抑制转换器

本文介绍了一种单端波导混频器的设计和实验性能，工作频率为14 GHz ~ 14.5 GHz，中频为3.7 GHz ~ 4.2 GHz。在500 MHz的中频带宽上，转换损耗< 3.5 dB。混合二极管在和频率处的最佳负载阻抗由带阻滤波器提供，而在图像频带处则利用波导的截止特性。并给出了Z型和Y型混合器混合过程的理论。用计算机分析了二极管串联电阻和结电容对转换损耗的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

1976 6th European Microwave Conference

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