Design of Ultra-Wide-Band Amplifier Embedded with Filter
| Autor: | Hsiu-Wei Liu, 劉修維 |
|---|---|
| Rok vydání: | 2009 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 97 In this thesis, we propose a novel method to design microewave amplifiers by using discrete-time techniques. The frequency-domain scattering parameters of transistors are converted into the z-domain representations. To implement microwave broadband amplifiers, we form the networks by cascading serial and shunt transmission-line sections of unit electrical length on the both sides of transistors. The design begins with the adoption of a ideal gain response. we can determine the pattern of the matching networks based on the requirements of ideal gain response.A least square scheme is used to obtain characteristic impedances of transmission line elements that form the amplifier having the gain response as close as to the target response. Eventually, we implement an ultra-wideband amplifier embedded with filters by using serial lines, open-circuited single-section stubs, short-circuited single-section stubs, and open-circuited two-section stubs. Experimental results are presented to illustrate the validity of this design method. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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