Hermann Boss

Demystifying Signal and Power Integrity [From the Guest Editor's Desk]

This special issue is a tribute to some of the best signal and power integrity experts worldwide. It is an honor to have the opportunity to work with these colleagues, and I am very grateful for their willingness to go through the effort of sharing their thoughts and ideas. Furthermore, I am grateful to the friends and colleagues of the Technical Committee (TC) MTT-9 on Digital Signal Processing, who have given me the confidence to be the chair of that TC.

Impact of Receiver Bandwidth and Nonlinearity on Noise Measurement Methods [Application Note]

The article has dealt with problems of noise measurement located on the receiver side. The influence of noise bandwidth B and receiver gain GREC on the measured power level FNwas discussed. The digital realization of B enables a revival of the signal generator method. The need for a calibrated noise generator is eliminated and a VNA can be used a receiver. A transistor measurement shows that the linearity of the receiver is extremely important. Through the application of the cold-source method, this influence can be significantly reduced.