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http://www.hellocq.net/forum/showthread.php?t=41456&highlight=%cb%ab%b9%a4%c6%f7http://www.hellocq.net/forum/search.php?searchid=386693&pp=30&page=1bg2tr u段双工器分解图 http://www.hellocq.net/forum/showthread.php?s=&threadid=309402 米濾波器 http://www.hellocq.net/forum/showthread.php?t=33139&highlight=%cb%ab%b9%a4%c6%f7
目前大多数的小型双工器都是用陷波形式的。73!