Question
Which of the following is an advantage of a log-periodic antenna?
Answer Options
- A) Wide bandwidth
- B) Higher gain per element than a Yagi antenna
- C) Harmonic suppression
- D) Polarization diversity
Correct Answer: A
Explanation
A log-periodic antenna is a multi-element directional antenna designed to cover a very large range of frequencies. Unlike a Yagi, which is highly optimized for a single band, the log-periodic design sacrifices some peak gain to achieve frequency independence.
The primary advantage of a log-periodic antenna is its wide bandwidth, meaning it can be used across multiple amateur bands (e.g., 14 \text{ MHz} through 30 \text{ MHz}) without requiring tuning or matching at the element level. This makes it an ideal ‘set-it-and-forget-it’ solution for multi-band operation.
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