Model of the Schottky Diode (SMS7630)?

28 July 2021 1 3K Report

Hi,

I am trying to model the Schottky diode SMS 7630-079 LF for rectifier application in ADS for a frequency of 2.4 GHz. The datasheet provides absolutely no information apart from the basic parameters and we made the board based on that. However, it's giving a frequency shift around 300 MHz after the measurement. Thereafter, we included the diode package model in the simulation and still it's now around 200 MHz. Would you please give a suggestion on how this rectifier board can be able to work in 2.4 GHz without going for the refabrication? Please help me in resolving this issue.

Thanks

Sumit

Martin Obermaier

Hi,

here is a paper that uses the same diode you are trying to use:

https://www.semanticscholar.org/paper/On-the-Design-of-a-RF-Schottky-Diode-Rectifier-for-Acad%C3%A9mico/8d9c19622cc5a44ede1192fabd5e9bd93e423067

It seems the have used a S-parameter file to model the diode. If you don't have that and the manufacturer can not supply it you should try to measure it. I think this paper could be useful for you too

https://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=5996467

Best regards

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