A Novel Topology of MMIC Distributed Amplifier with High Gain, Low Noise for radar application
Publish place: Conference on New Findings in Aerospace and Related Sciences
Publish Year: 1394
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
MAARS01_405
تاریخ نمایه سازی: 16 اسفند 1394
Abstract:
This paper, presents a new design distributed amplifier (DA) for radar application. in this novel topology, to improve the gain bandwidth (GBW) and reduce the noise, the preamplifier circuit is used. Number of stages are calculated in optimum mode and achieved fourth stages. the gain cell has cascade strucutre in this design to improve reverse isolation. Some of the most significant features of the proposed distributed amplifier, which make it more stable can be mentioned as: high bandwidth, flatness gain and low with best Input and output impedance matching and reverse isolation over the bandwidth of 1 to 10 GHz are the important features of the proposed amplifier. The simulation prepares 11.2 dB as flat gain, 1.1 dB as the noise figure average. The input/output return loss is better than -10 dB, the reverse isolation is better than -44 dB across the bandwidth.
Authors
M.R. Zakerhaghighi
Department of Electrical Engineering, Faculty of Engineering, University of Isfahan, Isfahan, Iran
M Mivehchy
Department of Electrical Engineering, Faculty of Engineering, University of Isfahan, Isfahan, Iran.
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