// Interview & Exam Prep
Interview & Exam Prep
Curated RF engineering interview questions with detailed solutions. Organised by topic, tagged by difficulty — Easy, Medium, and Hard. Built by RF engineers, for RF engineers.
Question Banks
LIVE
Transmission Lines
12 questions — basics, impedance, stubs, standing waves, losses.
LIVE
S-Parameters
18 questions — S11/S21, return loss, matching, VNA measurements.
LIVE
Amplifiers
20 questions — gain, stability, P1dB, IP3, noise figure, PA design.
LIVE
Antennas
18 questions — gain, polarisation, VSWR, arrays, link budgets.
LIVE
Filters
18 questions — poles, response types, insertion loss, design.
LIVE
Mixers
16 questions — conversion, spurs, IIP3, LO leakage, architectures.
SOON
General RF
Link budgets, noise, system design.
How to use this section
► Click any question to expand the full detailed answer
► Use the difficulty filter (Easy / Medium / Hard) to focus your practice
► Easy = concepts & definitions · Medium = analysis & calculations · Hard = design & derivations
► Interview tips are highlighted in yellow boxes inside each answer
► Use the difficulty filter (Easy / Medium / Hard) to focus your practice
► Easy = concepts & definitions · Medium = analysis & calculations · Hard = design & derivations
► Interview tips are highlighted in yellow boxes inside each answer