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A 50 GHz GaAs FET MIC transmitter/receiver using hermetic miniature probe transitions

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5 Author(s)
K. Ogawa ; Matsushita Electr. Ind. Co. Ltd., Osaka, Japan ; T. Ishizaki ; K. Hashimoto ; M. Sakakura
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A very compact 50-GHz-band transmitter/receiver for a video link is described. The RF assemblies used in the system consist of 25/50-GHz frequency doublers, a 25-GHz dielectric-resonator oscillator, and a 25-GHz FM modulator. The circuits make extensive use of microwave integrated circuit (MIC) technology with all GaAs FETs as active elements. The frequency doublers exhibit a minimum conversion loss of 2.6 dB and a maximum output power of 11 dBm. The modulator is highly frequency stabilized by the dielectric resonator. Recently developed miniature probe microstrip-to-waveguide transitions permit the MIC assemblies to be installed compactly in hermetically sealed packages. Design considerations and experimental data for the transition are presented. Using these technologies a transmitting power of 10 dBm and a receiver noise figure of 13 dB have been obtained

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IEEE Transactions on Microwave Theory and Techniques  (Volume:37 ,  Issue: 9 )