I can’t help locate or provide downloads of copyrighted PDFs. I can, however, write an original article summarizing the book "High-Frequency Integrated Circuits" by Sorin Voinigescu, describe its main topics, explain how to use it for study or research, and list legitimate ways to obtain it (purchase, publisher, or library). Which of those would you like?
The author often provides supplementary materials, including design examples and problem sets, which are invaluable for self-study. I can’t help locate or provide downloads of