Ultra-Widband Distributed Amplifier Using Loss Compensation Technique on Both Input and Output Circuit
محل انتشار: ماهنامه بین المللی مهندسی، دوره: 17، شماره: 4
سال انتشار: 1383
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 154
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شناسه ملی سند علمی:
JR_IJE-17-4_007
تاریخ نمایه سازی: 19 اسفند 1400
چکیده مقاله:
In this paper, we analyze a distributed amplifier based on input/output attenuation compensation. The analysis is carried out for a HEMT transistor; and a constant-k section filter is used to calculate the amplifier’s characteristics such as attenuation factor, phase constant and gain. The proposed design approach enables us to examine the tradeoff among the variables, which include the type and the number of devices, and the impedance and cutoff frequency of the lines. Consequently, we arrive at a design which gives the desired frequency response with significant bandwidth enhancement of around ۷۰% with about ۱۰% increase in circuit size. The simulation carried out by Advance Design System (ADS) software. Excellent agreement is shown when the theoretically predicted response of a typical amplifier is compared with the result of the computer-aided analysis (simulation).
کلیدواژه ها:
نویسندگان
Mohamed I. Elmasry
VLSI Research Group, University of Waterloo
M. Mohammad Taheri
Electerical Engineering, University of Tehran