半波长
两个相邻波腹之间的距离。
对于等截面介质或平面波，半波长与波速和频率的关系为 —
\begin{align} \label{eq:12801a} \Gamma = \frac{C}{2 \, f} \end{align}
其中 —
| \( \Gamma \) | = 指定频率下的半波长 |
| \( C \) | = 波速 |
| \( f \) | = 频率 |
对于异形介质，半波长取决于其形状。所得的半波长可能比细杆半波长更长或更短。
Half wavelength
The distance between two adjacent antinodes.
For a prismatic medium or plane wave, the half wavelength is related to the wave speed and the frequency by —
\begin{align} \label{eq:12801a} \Gamma = \frac{C}{2 \, f} \end{align}
where —
| \( \Gamma \) | = half-wavelength at the specified frequency |
| \( C \) | = wave speed |
| \( f \) | = frequency |
For a shaped medium the half wavelength depends on the shape. The resulting half wavelength can be either longer or shorter than the thin-wire half wavelength.
Also see —
Full-wave resonator
Half-wave resonator