Why are short connections used at microwave frequencies?
The correct answer is B: To reduce phase shift along the connection. Why are short connections used at microwave frequencies is to reduce phase shift along the connection. Short connections minimize phase shift at microwave frequencies. For amateur radio operators, this is important for microwave circuit design. Understanding this helps when building microwave circuits.
Exam Tip
Short connections at microwave = reduce phase shift along connection. Think 'S'hort 'C'onnections = 'S'mall 'C'hange in phase. Short connections minimize phase shift at microwave frequencies. Not neutralizing resistance, not compensating capacitance, not noise figure - just reduce phase shift.
Memory Aid
"Short connections at microwave = reduce phase shift along connection. Think 'S'hort 'C'onnections = 'P'hase shift reduction. Short connections minimize phase shift at microwave frequencies. Important for microwave circuit design."
Real-World Application
Using short connections at microwave frequencies: It's to reduce phase shift along the connection. At microwave frequencies, even small connection lengths can cause significant phase shifts, affecting circuit performance. This is the reason - reduce phase shift.
Key Concepts
Why Other Options Are Wrong
Option A: Incorrect. Increase neutralizing resistance isn't the reason - short connections reduce phase shift. Neutralizing resistance isn't the reason.
Option C: Incorrect. Increase compensating capacitance isn't the reason - short connections reduce phase shift. Compensating capacitance isn't the reason.
Option D: Incorrect. Reduce noise figure isn't the reason - short connections reduce phase shift. Noise figure isn't the reason.
题目解析
The correct answer is B: To reduce phase shift along the connection. Why are short connections used at microwave frequencies is to reduce phase shift along the connection. Short connections minimize phase shift at microwave frequencies. For amateur radio operators, this is important for microwave circuit design. Understanding this helps when building microwave circuits.
考试技巧
Short connections at microwave = reduce phase shift along connection. Think 'S'hort 'C'onnections = 'S'mall 'C'hange in phase. Short connections minimize phase shift at microwave frequencies. Not neutralizing resistance, not compensating capacitance, not noise figure - just reduce phase shift.
记忆口诀
Short connections at microwave = reduce phase shift along connection. Think 'S'hort 'C'onnections = 'P'hase shift reduction. Short connections minimize phase shift at microwave frequencies. Important for microwave circuit design.
实际应用示例
Using short connections at microwave frequencies: It's to reduce phase shift along the connection. At microwave frequencies, even small connection lengths can cause significant phase shifts, affecting circuit performance. This is the reason - reduce phase shift.
错误选项分析
Option A: Incorrect. Increase neutralizing resistance isn't the reason - short connections reduce phase shift. Neutralizing resistance isn't the reason. Option C: Incorrect. Increase compensating capacitance isn't the reason - short connections reduce phase shift. Compensating capacitance isn't the reason. Option D: Incorrect. Reduce noise figure isn't the reason - short connections reduce phase shift. Noise figure isn't the reason.
知识点
Short connections, Microwave frequencies, Reduce phase shift, Along the connection
Verified Content
Question from official FCC Extra Class question pool. Explanation reviewed by licensed amateur radio operators.