Are you designing an RF circuit, then this note is the best you can get
The note are dealing with.
Ch1:Modulation, Demodulation
Ch2:RF- Circuits
Ch3:Linear Active TWO-Ports
Ch4 Noise and Distortion
Ch5: Power and nonlinear RF amplifiers
Ch6:Oscillators
Ch7: MIxers and Detecters
The reason why I have put the note here, is because of what you are referering to.
The link is not working and there are no other ways of getting this note.
Så if you want it then download it from here
You are able to download the files without any points because they are free mirror.
Just click on free mirror and then the download will start after a couple of seconds ofcourse this will depend of your adsl/isdn/modem speed