Remote access unit and radio-over-fiber network using same

A remote access unit (RAU) apparatus, coupled to a central station (CS) of an RoF network through at least one optical fiber, and which RAU apparatus includes at least one antenna, includes: first and second antenna ports coupled to the at least one antenna; first and second optical fiber ports coup...

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Main Authors Lee, Jae-Hoon, Hwang, Seong-Taek, Kim, Byung-Jik, Lee, Gyu-Woong, Kim, Hoon, Kim, Sang-Ho, Kim, Yong-Gyoo, Kim, Sung-Kee, Lee, Han-Lim
Format Patent
LanguageEnglish
Published 09.02.2010
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Summary:A remote access unit (RAU) apparatus, coupled to a central station (CS) of an RoF network through at least one optical fiber, and which RAU apparatus includes at least one antenna, includes: first and second antenna ports coupled to the at least one antenna; first and second optical fiber ports coupled to the at least one optical fiber; a first coupler for decoupling a first downstream signal of a first duplexing method and a second downstream signal of a second duplexing method, which are input through the first optical fiber port; a circulator for outputting the first downstream signal input from the first coupler to the first antenna port and outputting a first upstream signal of the first duplexing method input from the first antenna port to the second optical fiber port; and a second coupler for outputting the second downstream signal input from the first coupler to the second antenna port and outputting a second upstream signal of the second duplexing method input from the second antenna port to the second optical fiber port.