Transceiver block diagram and questions, system level questions and current / past experience
Rf Design Engineer Interview Questions
109 rf design engineer interview questions shared by candidates
About Modulated signals and constellation
S-parameters, Smith Charts, Noise Figure, Stability, Impedance matching, CE, CB, CC amplifiers, LNA design, Noise Circles, Stability Circles.
Basic microwave knowledge
What is a relational database? What are joins - inner, outer? What would you see in an antenna to select it for a highway?
In and out of your resume , work experience and STAR questions and questions on 5g.
Q: how will we setup a lineup? What are disadvantages if we use Filter as first stage. Q: What is EVM? Q: Scenario: Assume TX side gives B1UL output and RX is receiving B1DL/B3DL and B7DL. What parameters will you investigate? Q: Why does a device has nonlinearity? Q:worst return loss possible? Q: how would you match two points in smith chart? Which one would you choose among 4 types matching? Answer: first I will ask what BW is needed? Q: why do we want our system to be linear? What is intermod? How much intermod will increase with 1 dB increase in Pin? Channel leakage Q: How will you model non-linearity. You don’t have any data. Where does it come from? Q: how will you find IIP3? Q: how will you find noise floor of Spectrum Analyzer? Q: why do we see saw tooth noise floor at very low noise floor in Spectrum Analyzer? Q: how does line impedance change if you make it wider? How ideal line impedance can be expressed in terms of lumped model? Q: How does the wave travel in microstrip line? Which gnd do we want closer to coplanar microstrip line – gnd below the trace or the gnd on the same plane? Q: how will constellation diagram change if we 1. increase gain in I component. 2. Introduce Phase noise.
Career Path
Basic behavioral questions and amplifier (dB, dBm) questions.
Technical questions about RF background along with questions on why I would like to work with Qorvo.
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