Which of the following is a common use of a Schottky diode?
The correct answer is D: As a VHF/UHF mixer or detector. Which of the following is a common use of a Schottky diode is as a VHF/UHF mixer or detector. Schottky diodes are commonly used in mixers and detectors at VHF/UHF. For amateur radio operators, this is important for component knowledge. Understanding this helps when using Schottky diodes.
Exam Tip
Schottky diode common use = VHF/UHF mixer or detector. Think 'S'chottky = 'S'ignal mixing/'D'etection. Schottky diodes are commonly used in mixers and detectors at VHF/UHF. Not negative resistance, not variable capacitance, not voltage reference - just mixer/detector.
Memory Aid
"Schottky diode common use = VHF/UHF mixer or detector. Think 'S'chottky = 'M'ixer/'D'etector. Schottky diodes are commonly used in mixers and detectors at VHF/UHF. Important for component knowledge."
Real-World Application
A Schottky diode: A common use is as a VHF/UHF mixer or detector. Schottky diodes have low forward voltage and fast switching, making them ideal for these applications. This is the use - VHF/UHF mixer or detector.
Key Concepts
Why Other Options Are Wrong
Option A: Incorrect. In oscillator circuits as negative resistance element isn't common - Schottky diodes are used as mixers/detectors. Negative resistance isn't the use.
Option B: Incorrect. As variable capacitance in AFC circuit isn't common - Schottky diodes are used as mixers/detectors. Variable capacitance isn't the use.
Option C: Incorrect. In power supplies as constant voltage reference isn't common - Schottky diodes are used as mixers/detectors. Voltage reference isn't the use.
题目解析
The correct answer is D: As a VHF/UHF mixer or detector. Which of the following is a common use of a Schottky diode is as a VHF/UHF mixer or detector. Schottky diodes are commonly used in mixers and detectors at VHF/UHF. For amateur radio operators, this is important for component knowledge. Understanding this helps when using Schottky diodes.
考试技巧
Schottky diode common use = VHF/UHF mixer or detector. Think 'S'chottky = 'S'ignal mixing/'D'etection. Schottky diodes are commonly used in mixers and detectors at VHF/UHF. Not negative resistance, not variable capacitance, not voltage reference - just mixer/detector.
记忆口诀
Schottky diode common use = VHF/UHF mixer or detector. Think 'S'chottky = 'M'ixer/'D'etector. Schottky diodes are commonly used in mixers and detectors at VHF/UHF. Important for component knowledge.
实际应用示例
A Schottky diode: A common use is as a VHF/UHF mixer or detector. Schottky diodes have low forward voltage and fast switching, making them ideal for these applications. This is the use - VHF/UHF mixer or detector.
错误选项分析
Option A: Incorrect. In oscillator circuits as negative resistance element isn't common - Schottky diodes are used as mixers/detectors. Negative resistance isn't the use. Option B: Incorrect. As variable capacitance in AFC circuit isn't common - Schottky diodes are used as mixers/detectors. Variable capacitance isn't the use. Option C: Incorrect. In power supplies as constant voltage reference isn't common - Schottky diodes are used as mixers/detectors. Voltage reference isn't the use.
知识点
Common use, Schottky diode, VHF/UHF mixer, Detector
Verified Content
Question from official FCC Extra Class question pool. Explanation reviewed by licensed amateur radio operators.