RF channel performance assessment for a multiple carrier millimeter-wave communication system  

作　　者：Thomas WONG 

机构地区：[1]Department of Electrical and Computer Engineering,Illinois Institute of Technology,Chicago,Illinois60616,U.S.A

出　　处：《Progress in Natural Science:Materials International》2004年第10期885-888,共4页自然科学进展·国际材料（英文版）

基　　金：SupportedbytheMicrowaveLaboratory ;IllinoisInstituteofTechnologyandTEC

摘　　要：Channel capacity,system versatility and ease of maintenance are factors of prime concern in future generations of wire-less communication systems.As a result,millimeter-wave can offer considerable advantages in providing broadband interface.Nonlinearity and noise effects,including parametric fluctuations,are two significant causes for signal degradation in broadband communication systems.Two methods to assess the performance of an RF channel in a multi-carrier system are described.By measuring the forward transfer func-tion from transmitter IF to receiver IF as the frequency is swept across the channel bandwidth,characteristics such as gain flatness,chan-nel dispersion,and saturation effects are revealed.To evaluate the ability of the communication link in preserving the synchronization be-tween two carriers,their heterodyned spectrum at the receiver IF output is studied.Both measurement methods employ standard equip-ment and have been found to be effective when applied to a multi-carrier millimeter-wave system with over1GHz instantaneous band-width.Channel capacity,system versatility and ease of maintenance are factors of prime concern in future generations of wire-less communication systems.As a result,millimeter-wave can offer considerable advantages in providing broadband interface.Nonlinearity and noise effects,including parametric fluctuations,are two significant causes for signal degradation in broadband communication systems.Two methods to assess the performance of an RF channel in a multi-carrier system are described.By measuring the forward transfer func-tion from transmitter IF to receiver IF as the frequency is swept across the channel bandwidth,characteristics such as gain flatness,chan-nel dispersion,and saturation effects are revealed.To evaluate the ability of the communication link in preserving the synchronization be-tween two carriers,their heterodyned spectrum at the receiver IF output is studied.Both measurement methods employ standard equip-ment and have been found to be effective when applied to a multi-carrier millimeter-wave system with over1GHz instantaneous band-width.

关 键 词：millimeter-wave communication system multiple carrier INTERMODULATION carrier fluctuation synchronization 

分 类 号：TN925[电子电信—通信与信息系统]