Microstrip Active Filters Using GaAs FET Negative Resistance Circuits for Loss Compensation

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概要

• 論文の詳細を見る

• Design techniques are presented for high performance microstrip bandpass filters using GaAs FETs for loss compensation. The filters are based on conventional planar filter topologies with the addition of GaAs FET negative resistance circuits to amplify the signal within the resonators via a reflection-mode of amplification. Three practical filters have been demonstrated using these negative resistance techniques : (1) A filter employing an active loop configuration, (2) a dual-mode microstrip ring resonator filter, and (3) an end-coupled half-wavelength resonator filter. The investigation of this negative resistance method of loss compensation has led to the development of an exciting new type of miniaturised filter which employs MIC microstrip resonators with MMIC negative resistance chips bonded into the filter for loss compensation. This approach has the advantage of combining the proven capabilities of established MIC microstrip filter topologies with the excellent reproducibility of the MMIC loss compensation circuits.

• 社団法人電子情報通信学会の論文
• 1995-08-25

著者

• Robertson Ian

  Communications Research Group Dept. Of Electronic Engineering King's College London

• Guglielmi Marco

  European Space Research And Technology Center (estec)

• Karacaoglu Ulun

  Communications Research Group, Dept. of Electronic Engineering King's College London

• Karacaoglu Ulun

  Communications Research Group Dept. Of Electronic Engineering King's College London

関連論文

• Microstrip Active Filters Using GaAs FET Negative Resistance Circuits for Loss Compensation

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