Practical performance of a microwave distributed MESFET mixer

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Practical performance of a microwave distributed MESFET mixer

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© The Institution of Electrical Engineers
Published

The practical performance of a two-stage microwave distributed MESFET mixer is presented for the first time, based on the concept of distributed or travelling-wave mixing. A conversion loss of 4 dB (+1, −0.5 dB) was measured at fixed bias with a signal frequency varying from 2 to 10 GHz for an IF of 1.5 GHz and 6 dBm of LO pump power. This performance is believed to be superior to any currently available microwave mixer covering this wide bandwidth.

Inspec keywords: distributed parameter networks; solid-state microwave circuits; mixers (circuits)

Other keywords: travelling-wave mixing; fixed bias; microwave distributed MESFET mixer; 2 GHz to 10 GHz; bandwidth; conversion loss

Subjects: Modulators, demodulators, discriminators and mixers; Solid-state microwave circuits and devices

References

    1. 1)
      • Percival, W.S.: `Thermionic valve circuits', British Patent 460562, 1937.
    2. 2)
      • Tang, O.S.A., Aitchison, C.S.: `A microwave distributed MESFET mixer', Conference proceedings of 14th European microwave conference, 1984, Liege, Belgium, p. 483–487.
http://iet.metastore.ingenta.com/content/journals/10.1049/el_19850121
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