在本篇論文中，我們利用離散時域的技術設計微波放大器，將其電晶體之散射參數以Z多項式表示，並結合微帶線之Z-時域模型，以串接或並接多條單位電氣長度傳輸線的電晶體來合成嵌入濾波器之微波寬頻放大器。
在設計之初，我們會選擇滿足規格的理想放大器增益響應作為設計原型，並根據該理想增益響應的特性來合成適當的傳輸線並、串接元件，最後我們利用最佳化的演算法找出放大器電路與理想增益響應之間的最佳近似解，進而得到一組放大器電路中傳輸線元件的特性阻抗。
論文最後將利用此一方法實現嵌入濾波器之超寬頻放大器，將電晶體合成串聯傳輸線、單段式開路殘枝、單段式短路殘枝及兩段式開路殘枝來達到其所需規格的放大器增益響應，並將量測數據與理論值加以比對。

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.

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