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A novel common-gate mixer for wireless applications

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3 Author(s)
Frank, B.M. ; Dept. of Electr. & Comput. Eng., Queen''s Univ., Kingston, Ont., Canada ; Freundorfer, A.P. ; Antar, Y.M.M.

In this paper, a balanced 27 GHz common-gate downconvert mixer is presented. The common-gate configuration allows 0.8 μm MESFETs to be used at frequencies in excess of those practical for the common-source configuration. Measurements indicate a conversion loss of 10.7 dB at an input RF frequency of 27 GHz and local-oscillator power of 7.4 dBm, with a third-order intercept at -5.3-dBm output power. This performance is in the range of reported mixers at this frequency, even though most use higher tolerance and more expensive processes

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Microwave Theory and Techniques, IEEE Transactions on  (Volume:50 ,  Issue: 5 )