Question

PIN Diode in microwave passive components​

Answer 1

Explanation:

PIN diodes can be used to create the limiters used to protect sensitive components such as low noise amplifiers (LNAs) in a receiver from high signal levels. The PIN diode is placed as a shunt across the transmission path to the receiver front end.

Answer 2

Explanation:

• A PIN diode limiter provides passive protection for receivers and their front ends from 0.2 to 4.0 GHz. Receivers rely on low-noise amplifiers (LNAs) to pull in low-level signals, but those LNAs can be damaged by high-level signals. For protection, Skyworks Solutions has developed a compact passive PIN diode limiter.

• A PIN diode behaves as a current-controlled resistor at radio and microwave frequencies. Like the conventional PN diode, it allows current flow in one direction when forward biased, but not in the other when it is reverse biased.

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