Technical term used in electronics and physics to describe a high rate of oscillation or wave frequency. Often abbreviated as HF.
Designing high-frequency circuits is difficult.
This antenna supports high-frequency bands.
高周波 is a more common term for 'high frequency' and is often used interchangeably, but 高周波数 explicitly emphasizes the numerical frequency value.
Antonym meaning 'low frequency'.
Compound of 高 (high) + 周波数 (frequency). 周波数 itself is a modern technical term combining 周波 (cycle/wave) and 数 (number).