頻率多工器為無線系統重要元件之一，相較於相對常見的帶通多工器與為增加電路調變性，本計畫提出可調式低通與帶通多工器，採用微帶線、封裝型變容二極體與散佈式耦合技術來實現。計畫電路包含具特定頻率止帶或寬止帶之截止頻率可調低通濾波器、可調式低通與帶通雙工器與可調式低通與帶通多工器。 ;Frequency multiplexers are one of the important components in wireless systems. There are several literatures published for bandpass multiplexers. However, reconfigurable lowpass-bandpass multiplexers are less discussed. To this end, microstrip technology, packaged varactors, and distributed coupling technique are employed in this project to realize the proposed circuits. This project will investigate reconfigurable lowpass filter with fixed-frequency stopband or broadband stopband, reconfigurable lowpass-bandpass diplexer, and reconfigurable lowpass-bandpass multiplexer.
