What is the frequency response of a T-network with series capacitors and a shunt inductor?
The correct answer is B: High-pass. What is the frequency response of a T-network with series capacitors and a shunt inductor is high-pass. Series capacitors block low frequencies, shunt inductor shorts high frequencies, resulting in high-pass. For amateur radio operators, this is important for filter design. Understanding this helps when designing filters.
Exam Tip
T-network with series capacitors and shunt inductor = high-pass. Think 'T'-network 'S'eries 'C'apacitors = 'H'igh-'P'ass. Series capacitors block low frequencies, shunt inductor shorts high frequencies, resulting in high-pass. Not low-pass, not band-pass, not notch - just high-pass.
Memory Aid
"T-network with series capacitors and shunt inductor = high-pass. Think 'T'-network 'S'eries 'C'apacitors = 'H'igh-'P'ass. Series capacitors block low frequencies, resulting in high-pass. Important for filter design."
Real-World Application
A T-network with series capacitors and a shunt inductor: Its frequency response is high-pass. The series capacitors block low frequencies, and the shunt inductor provides a path for high frequencies. This is the response - high-pass.
Key Concepts
Why Other Options Are Wrong
Option A (Low-pass): Incorrect. Low-pass isn't correct - T-network with series capacitors and shunt inductor is high-pass. Low-pass is wrong.
Option C (Band-pass): Incorrect. Band-pass isn't correct - T-network with series capacitors and shunt inductor is high-pass. Band-pass is wrong.
Option D (Notch): Incorrect. Notch isn't correct - T-network with series capacitors and shunt inductor is high-pass. Notch is wrong.
题目解析
The correct answer is B: High-pass. What is the frequency response of a T-network with series capacitors and a shunt inductor is high-pass. Series capacitors block low frequencies, shunt inductor shorts high frequencies, resulting in high-pass. For amateur radio operators, this is important for filter design. Understanding this helps when designing filters.
考试技巧
T-network with series capacitors and shunt inductor = high-pass. Think 'T'-network 'S'eries 'C'apacitors = 'H'igh-'P'ass. Series capacitors block low frequencies, shunt inductor shorts high frequencies, resulting in high-pass. Not low-pass, not band-pass, not notch - just high-pass.
记忆口诀
T-network with series capacitors and shunt inductor = high-pass. Think 'T'-network 'S'eries 'C'apacitors = 'H'igh-'P'ass. Series capacitors block low frequencies, resulting in high-pass. Important for filter design.
实际应用示例
A T-network with series capacitors and a shunt inductor: Its frequency response is high-pass. The series capacitors block low frequencies, and the shunt inductor provides a path for high frequencies. This is the response - high-pass.
错误选项分析
Option A (Low-pass): Incorrect. Low-pass isn't correct - T-network with series capacitors and shunt inductor is high-pass. Low-pass is wrong. Option C (Band-pass): Incorrect. Band-pass isn't correct - T-network with series capacitors and shunt inductor is high-pass. Band-pass is wrong. Option D (Notch): Incorrect. Notch isn't correct - T-network with series capacitors and shunt inductor is high-pass. Notch is wrong.
知识点
Frequency response, T-network, Series capacitors, Shunt inductor, High-pass
Verified Content
Question from official FCC Extra Class question pool. Explanation reviewed by licensed amateur radio operators.