本論文以可重組式微波被動元件電路為設計目標，首先，提出一個具有四種不同電路功能的可重組式微波電路。將藉由控制開關改變傳輸線的連接方式，達成枝幹耦合器、鼠競耦合器、帶通濾波器與帶拒濾波器等四種不同的功能，並以印刷電路板以進行功能驗證。其中四種功能操作頻率皆為2 GHz，整體電路尺寸為 44.0 mm × 58.0 mm，電氣尺寸在中心頻率 2 GHz 下為 0.2933 λ0 × 0.3867 λ0。又為了縮小電路面積，將可重組式微波被動元件微型化，並以CMOS及GaAs IC製程實現，操作頻率選定於X band，實現擁有枝幹耦合器與帶通濾波器兩種不同功能的可重組式微波元件， GaAs製程版本之晶片尺寸為1.35 mm × 1.24 mm，在操作頻率下之電氣尺寸為0.0419λ0 × 0.0384λ0； CMOS製程版本之晶片尺寸為0.911 mm × 0.515 mm，在操作頻率下之電氣尺寸為 0. 0282λ0 × 0.0160λ0。兩者之電路面積與單功能電路差異不大，但可擁有兩種不同電路功能。

In this study, reconfigurable microwave passive components are proposed. First, a novel reconfigurable circuit with four different functions is presented. The four different functions are branch coupler, rat race coupler, bandpass filter and bandstop filte.It is achieved by controlling the switches to change the connection statue of the transmission lines.A design example in PCB is presented, and the operating frequency is 2 GHz. The circuit size is 44.0 mm × 58.0 mm while the electrical size is 0.2933〖 λ〗_0× 0.3867〖 λ〗_0 at 2 GHz. In order to reduce the circuit area, reconfigurable microwave passive components are then miniaturized and realized in CMOS and GaAs IC processes. The operating frequency is set at the X band, between two different functions, i.e., a branch coupler or a bandpass filter. For the GaAs version, the chip size is 1.35 mm × 1.24 mm and the electrical size is around 0.0419〖 λ〗_0× 0.0384 〖 λ〗_0 at 10 GHz. For the CMOS version, the chip size is 0.911 mm × 0.515 mm and the electrical size is around 0.0282〖 λ〗_0× 0.0160 〖 λ〗_0 at 10 GHz. Both of them exhibit a circuit size similar to that of the conventional single-function circuits, but they can achieve two different functions.

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