Cavity duplexer nubwoko bwihariye bwa duplexer ikoreshwa muri sisitemu yitumanaho idafite insinga kugirango itandukane kandi yakiriwe ibimenyetso muri domaine yumurongo.Cavity duplexer igizwe na cavites ya resonant, buriwese ashinzwe itumanaho muburyo bumwe.
Ihame ryakazi rya cavity duplexer rishingiye ku guhitamo inshuro, ikoresha umwobo wihariye wa resonant kugirango uhitemo kohereza ibimenyetso murwego rwumurongo.By'umwihariko, iyo ikimenyetso cyoherejwe muri cavity duplexer, cyoherezwa mu cyuho cyihariye cya resonant kandi kikongerwaho kandi kikanduzwa kuri rezonans yumurongo wurwo rwobo.Muri icyo gihe, ibimenyetso byakiriwe biguma mu kindi cyuho kandi ntibizanduzwa cyangwa ngo bivangwe.