Preview Questions RF (Radio Frequency) Engineer | Role Specific Skill

Question 1: How does the "Rayleigh fading" model affect wireless communication systems?

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It models the effect of multipath propagation in urban environments

It models signal loss due to atmospheric conditions

It models the effect of free-space propagation

It models the effect of Doppler shift in satellite communication

Question 2: In the context of EMC, which of the following is typically used to improve the immunity of sensitive components from EMI?

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Decoupling capacitors

Resistors with high resistance values

Op-amps with high gain

Inductors with high inductance

Question 3: How is link budget analysis used in wireless communication design?

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To allocate frequency bands

To calculate total path loss

To determine required transmission power

To estimate system capacity

Question 4: In RF circuit design, what is the significance of a Smith chart in impedance matching?

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It calculates the resistance at a given frequency

It visually represents the complex impedance and assists in matching

It determines the signal loss across the circuit

It filters out unwanted frequencies from the signal

Question 5: In a coaxial cable, what happens to signal loss as frequency increases?

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Decreases

Remains constant

Increases

Oscillates

Question 6: What is the typical gain of a standard horn antenna?

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10 dBi

25 dBi

15 dBi

5 dBi