Experimental gain and noise figure performance of distributed MESFET amplifiers

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Experimental gain and noise figure performance of distributed MESFET amplifiers

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The noise figure and gain characteristics of lossless and lossy MESFET distributed amplifiers have been theoretically investigated by various workers. In the letter, in order to support previously reported theoretical results, the experimentally measured noise figure and power gain performance of two-stage and five-stage hybrid microwave distributed amplifiers employing MESFETs are presented. The measured results are compared to theoretically obtained values and found to be in reasonable agreement over most of the band.

Inspec keywords: microwave integrated circuits; microwave amplifiers; hybrid integrated circuits

Other keywords: distributed MESFET amplifiers; power gain; gain characteristics; hybrid microwave distributed amplifiers; noise figure performance

Subjects: Hybrid integrated circuits; Solid-state microwave circuits and devices; Amplifiers

References

    1. 1)
      • K.B. Niclas . Multi-octave performance of single ended microwave solid-state amplifiers. IEEE Trans.
    2. 2)
      • G.H. Robinson . Resonant frequency calculations for microstrip cavities. IEEE Trans. , 665 - 666
    3. 3)
      • C.S. Aitchison . The intrinsic noise figure of the MESFET distributed amplifier. IEEE Trans.
    4. 4)
      • Nazoa-Ruiz, N., Aitchison, C.S.: `The gain and noise figure performance of the MESFET distributed amplifiers', Proceedings of 14th European microwave conference, October 1984, Liege, Belgium, p. 398–403.
    5. 5)
      • A. van der Ziel . Gate noise in field effect transistors at moderately high frequencies. Proc. IEEE , 461 - 467
http://iet.metastore.ingenta.com/content/journals/10.1049/el_19850138
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