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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 occations 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. evaluated 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-carr ier millimeter-wave system with over1GHz instantaneous band-width.