1. Find a university course on RF, look up the course textbooks.
In my university we had several courses on "analog electronics" which covered topics like free space path loss and RF concepts (e.g. bandpass filters).
2. Use Google or another search engine (DDG) to find the book in PDF or EPUB version.
3. Enjoy reading the book without forking over hundreds of dollars to a greedy publisher.
Comments
1. Find a university course on RF, look up the course textbooks.
In my university we had several courses on "analog electronics" which covered topics like free space path loss and RF concepts (e.g. bandpass filters).
2. Use Google or another search engine (DDG) to find the book in PDF or EPUB version.
3. Enjoy reading the book without forking over hundreds of dollars to a greedy publisher.