东南大学学报(英文版)
東南大學學報(英文版)
동남대학학보(영문판)
JOURNAL OF SOUTHEAST UNIVERSITY
2012年
3期
276-281
,共6页
于志强%周健义%赵丽%周飞%李江
于誌彊%週健義%趙麗%週飛%李江
우지강%주건의%조려%주비%리강
射频收发信机%正交频分复用%IMT-advanced系统%相位噪声%低噪声放大器%功率放大器%LTE-advanced系统
射頻收髮信機%正交頻分複用%IMT-advanced繫統%相位譟聲%低譟聲放大器%功率放大器%LTE-advanced繫統
사빈수발신궤%정교빈분복용%IMT-advanced계통%상위조성%저조성방대기%공솔방대기%LTE-advanced계통
radio frequency(RF)transceiver%orthogonal frequency division multiplexing(OFDM)%IMT-advanced system%phase noise%low noise amplifier%power amplifier%LTE-advanced system
介绍了一种应用于下一代移动通信系统的高性能宽带射频收发信机的实现.本射频收发信机工作在6~6.3GHz频段,信道带宽达到100MHz,工作在时分双工模式并支持IMT-advanced系统采用的多输入多输出(MIMO)技术.为了获得最佳的性能,采用了经典的超外差结构.详细介绍了系统关键部件如低噪声放大器、功率放大器以及本地振荡器的设计问题.测试结果表明,射频收发信机的最大线性输出功率大于23dBm,低噪声放大器的增益和噪声系数分别为大约24dB和小于1dB.此外,误差矢量幅度(EVM)的测试结果表明实现的射频收发信机的性能远超过LTE-advanced系统的要求.采用最大8×8的MIMO配置,本射频收发信机在现场试验中支持超过1Gbit/s的数据传输率.
介紹瞭一種應用于下一代移動通信繫統的高性能寬帶射頻收髮信機的實現.本射頻收髮信機工作在6~6.3GHz頻段,信道帶寬達到100MHz,工作在時分雙工模式併支持IMT-advanced繫統採用的多輸入多輸齣(MIMO)技術.為瞭穫得最佳的性能,採用瞭經典的超外差結構.詳細介紹瞭繫統關鍵部件如低譟聲放大器、功率放大器以及本地振盪器的設計問題.測試結果錶明,射頻收髮信機的最大線性輸齣功率大于23dBm,低譟聲放大器的增益和譟聲繫數分彆為大約24dB和小于1dB.此外,誤差矢量幅度(EVM)的測試結果錶明實現的射頻收髮信機的性能遠超過LTE-advanced繫統的要求.採用最大8×8的MIMO配置,本射頻收髮信機在現場試驗中支持超過1Gbit/s的數據傳輸率.
개소료일충응용우하일대이동통신계통적고성능관대사빈수발신궤적실현.본사빈수발신궤공작재6~6.3GHz빈단,신도대관체도100MHz,공작재시분쌍공모식병지지IMT-advanced계통채용적다수입다수출(MIMO)기술.위료획득최가적성능,채용료경전적초외차결구.상세개소료계통관건부건여저조성방대기、공솔방대기이급본지진탕기적설계문제.측시결과표명,사빈수발신궤적최대선성수출공솔대우23dBm,저조성방대기적증익화조성계수분별위대약24dB화소우1dB.차외,오차시량폭도(EVM)적측시결과표명실현적사빈수발신궤적성능원초과LTE-advanced계통적요구.채용최대8×8적MIMO배치,본사빈수발신궤재현장시험중지지초과1Gbit/s적수거전수솔.
The development of a high performance wideband radio frequency (RF) transceiver used in the next generation mobile communication system is presented.The developed RF transceiver operates in the 6 to 6.3 GHz band and the channel bandwidth is up to 100 MHz.It operates in the time division duplex (TDD) mode and supports the multiple-input multiple-output (MIMO) technique for the international mobile telecommunications (IMT)-advanced systems.The classical superheterodyne scheme is employed to achieve optimal performance.Design issues of the essential components such as low noise amplifier,power amplifier and local oscillators are described in detail. Measurement results show that the maximum linear output power of the RF transceiver is above 23dBm,and the gain and noise figure of the low noise amplifier is around 24 dB and below 1 dB,respectively.Furthermore,the error vector magnitude (EVM) measurement shows that the performance of the developed RF transceiver is well beyond the requirements of the long term evolution (LTE)-advanced system. With up to 8 × 8 MIMO configuration, the RF transceiver supports more than a 1 Gbit/s data rate in field tests.