粹取外部構裝及微帶線等效的研究雖然可以較精確的計算元件效能降低的因素，但過程複雜且所得的也是一近似結果而已，並無法完全反應元件的響應。而當封裝或微帶線設計改變時，原本的的模型就必須重新設計及分析，這是比較麻煩的地方。本論文提出一種逆算的方法，直接從量測結果來粹取等效參數，並利用半導體製程來驗證此法的正確性及和傳統理論分析的差異。
　　微帶線構裝佈局是一般表面聲波濾波器和外界訊號連接的管道，所以其長度及寬度的設計就會影響濾波器的響應。而微帶線也可以經由設計達成電感、電容等被動元件的完成，進而補償濾波器的損失。本論文除了說明設計微帶線佈局之外也提出一些特殊的微帶線結構來改善表面聲波帶通濾波器的響應特性。

　　Although the researches of parameters extraction from package and microstrip　can determinate the performance decreasing factors, but the process is complex and
the result is also an approximation, which can not show the real frequency response　exactly. When the type of package or the design of microstrip has changed, the
original model must be re-designed and analyzed, this is the reason why we feel　boring. In this thesis, we propose a new method to extract parameters from the
measurement. Also, we use semiconductor process to prove our validity and　comparing the difference with traditional theory.
　　The microstrip layout is usually the path between our saw device and systematic　signal, how we design affect the response of our filter. However, we can compose
passive components through our design, which compensate the insertion loss. The　thesis not only interprets how we design microstrip layout but also brings up some
microstrip structure to improve our performance.

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