本論文充分的利用耦合共振器的概念下去設計雙工器、三工器、多工器。設
計的過程中著重於操作頻率的分配，因為要避開倍頻效應以及要考量到四分之波 長短路的效應，才能使通帶的訊號有效的通過。除了中心頻率之外，頻寬的設計 也是本論文一大挑戰，因為要設計多通帶的濾波器，電路的佈局位置和共振線阻 抗大小都會影響耦合量的需求。另外搭配耦合饋入與直接饋入的組合，嘗試著提 高系統整合性，省掉不必要的匹配電路。本論文整個實現流程我覺得最困難的地 方在於微調模擬的階段，首先，我覺得整合電路後的第一個頻率響應是一個很重 要的指標，也就是微調開局的好壞，假如是好的響應，則有助於後續的響應趨勢，再來就是過程中經驗的累積，有時候微調的地方只能動一邊，會發現通帶的響應 一部分好另一部分差，這時候就要做取捨，決定是否該繼續這條路徑下去看響應 趨勢，通常我會繼續下去，直到一個響應達成後再努力微調好另一個響應，有時 候響應彼此之間會互相影響，所以就需要靠著經驗去判斷。總而言之，微調這項 過程，很艱辛也很耗時，我採用投影片比對的方式來當幫助我來判斷趨勢是好是 壞，到了最後，有逐漸微調到好的結果，雖然還不算完美，所以我未來的工作就 是會再繼續透過電路佈局的修改，調出更好的通帶響應，然後再把電路面積進一 步的縮小，以及讓通帶之間的干擾減少，這樣一來能夠在實作上讓量測跟模擬更 微接近、準確。
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