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双工器在 CDMA/TDMA/AMPS电话同时发射和接收时用于隔离发射信号和接收信号。以前的设计中 ,陶瓷双工器是唯一的选择 ,尺寸约为 2 0 mm× 1 0 mm× 4mm,是电路板上尺寸最大的无源器件。最近Sawtek公司推出了世界上最小的 SAW双工器 ( 5mm× 5mm× 1 mm) ,比第一代 SAW双工器小
Duplexers are used to isolate transmit and receive signals when both CDMA / TDMA / AMPS phones transmit and receive simultaneously. In the previous design, the ceramic duplexer was the only option, measuring about 200 mm × 100 mm × 4 mm, making it the largest passive device on the board. Sawtek recently introduced the world’s smallest SAW duplexer (5mm × 5mm × 1mm), smaller than the first generation SAW duplexer