Resources
Explore a curated list of resources to enhance your understanding and efficiency in RF design. Below are some helpful books, software, YouTube channels, rules of thumb, and downloadable PDFs.
📚 Books
- 1- Advanced Techniques in RF Power Amplifier Design By Steve C. Cripps
- 2- RF Power Amplifiers for Wireless Communications By Steve C. Cripps
- 3-High-Linearity RF Amplifier Design By Peter B. Kenington
- 4-Feedforward Linear Power Amplifiers By Pothecary, Nick
- 5-RF Circuit Design 1st and 2nd Editions By Bowick Christopher
- 6-Practical RF Circuit Design for Modern Wireless Systems Vol1 and Vol2 By Rowan Gilmore and Les Besser
- 7-Indoor Radio Planning various editions By Morten Tolstrup
📏 Rules of Thumb
- 1-Reactance of DC block capacitor should not be more than 3 Ω to 5 Ω at the lowest operating frequency
- 2-At high frequency application the orientation of capacitors affects RF performance. Vertical orientation removes odd parallel resonant frequencies
- 3-Open wire has approximately 1nH per foot whereas PCB traces have 10nH per inch inductance
- 4-When using resistor in RF feedback application, the value of the resistor should be greater than Crss (Reverse transfer capacitance)
- 5-Feedback resistor rating is P (rms) = {Vd (DC voltage across) / R (resistance)} /√2
- 6-Feedback is used to level the gain, broader band width and to achieve stability
- 7-For stability series / parallel resistance can be used on input (PA) or output side (LNA)
- 8-Class AB LDMOS transistors need soaking at twice the quiescent current for 8-12 hours before testing fully
- 9-The drain voltage can reach twice the supply voltage at positive part of the input rf signal
- 10-50 ohm Microstripline to ground plane distance should be at least 1.5 x substrate height