无线电工程
無線電工程
무선전공정
RADIO ENGINEERING OF CHINA
2013年
10期
8-9,28
,共3页
无线光载系统%光载波抑制%6倍频毫米波%马赫-曾德尔强度调制器
無線光載繫統%光載波抑製%6倍頻毫米波%馬赫-曾德爾彊度調製器
무선광재계통%광재파억제%6배빈호미파%마혁-증덕이강도조제기
radio over fiber%optical carrier suppression%frequency sextuple%Mach-zehnder intensity modulator
搭建了一种基于光载波抑制产生6倍频毫米波的 RoF系统。系统采用马赫-曾德尔强度调制器(MZM)和滤波器抑制了偶次和一阶光边带,2个三阶光边带在基站端的光电检测器中进行拍频,得到了6倍频毫米波信号。仿真结果表明,采用10 GHz的微波信号,可以产生60 GHz的毫米波,2.5 GB/s的信号可以在单模光纤中传输15 km以上。
搭建瞭一種基于光載波抑製產生6倍頻毫米波的 RoF繫統。繫統採用馬赫-曾德爾彊度調製器(MZM)和濾波器抑製瞭偶次和一階光邊帶,2箇三階光邊帶在基站耑的光電檢測器中進行拍頻,得到瞭6倍頻毫米波信號。倣真結果錶明,採用10 GHz的微波信號,可以產生60 GHz的毫米波,2.5 GB/s的信號可以在單模光纖中傳輸15 km以上。
탑건료일충기우광재파억제산생6배빈호미파적 RoF계통。계통채용마혁-증덕이강도조제기(MZM)화려파기억제료우차화일계광변대,2개삼계광변대재기참단적광전검측기중진행박빈,득도료6배빈호미파신호。방진결과표명,채용10 GHz적미파신호,가이산생60 GHz적호미파,2.5 GB/s적신호가이재단모광섬중전수15 km이상。
A scheme of RoF system based on optical carrier suppression to generate frequency-sextupled millimeter-wave effec-tively is demonstrated. A Mach-zehnder intensity modulator(MZM)and an optical filter are equipped to produce a signal whose even-order and first-order sideband is suppressed by adjusting the bias voltage of MZM. The signal is transmitted to the base station(BS). In BS,two third-order sidebands beat to generate optical millimeter-wave with sextuple frequency in the photoelectric detector. Simulation results show that the 60 GHz optical millimeter-wave can be generated by 10 GHz RF resource. The eye diagram proves that the 2. 5 GB/s data is successfully transmitted over 15 km single-mode fiber.