Antenna Matching
The process of adjusting impedance so that the input impedance of an antenna equals or approximates the characteristic impedance of its transmission line over a specified range of frequencies. The impedance of either the transmission line, or the antenna, or both, may be adjusted to effect the match.
天线匹配
指定频率范围内，调整阻抗使得天线的输入阻抗等于或大致等于其发射线路特性阻抗的过程。无论是发射线路还是天线的阻抗（或是两者兼有），都可以通过调节达到匹配。
Antenna Noise Temperature
The temperature of a hypothetical resistor at the input of an ideal noise-free receiver that would generate the same output noise power per unit bandwidth as that at the antenna output at a specified frequency. The antenna noise temperature depends on antenna coupling to all noise sources in its environment as well as on noise generated within the antenna. The antenna noise temperature is a measure of noise whose value is equal to the actual temperature of a passive device.
天线噪声温度
理想无噪声接收机输入端假负载的温度，每单位带宽产生的输出噪声功率与指定频率上的天线输出功率相同。天线噪声温度的高低与天线相连接的环境噪声源以及天线内部噪声有关系。天线噪声温度是噪声的衡量标准，其温度值等于实际的无源器件温度。
Antenna Power Gain
An FCC term for "the square root of the ratio of the root- mean-square free space field intensity produced at one mile in a horizontal plane in micro- volts per meter for one kilowatt antenna input power 137.6 mV/m." This ratio may be expressed in dB.
天线功率增益
FCC术语，“水平面1英里处产生的自由空间场强的均方根比值的平方根，表示为微伏每米。输入功率为1千瓦的天线功率增益为137.6 mV/m。”该比值单位是分贝。
Antenna Power Input
An FCC term for the RF peak or RMS power supplied to the antenna from its associated transmission line and matching network.
天线功率输入
FCC术语，由天线相关发射线路及匹配网络提供给天线的射频峰值功率或均方根功率。
Antenna Structure
An FCC term which refers to the whole tower system including radiation system, supporting structure and any "surmounted appurtenances."
天线结构
FCC术语，指整个天线塔系统，包括辐射系统，支持结构以及任意“顶部附属器件”。
The process of adjusting impedance so that the input impedance of an antenna equals or approximates the characteristic impedance of its transmission line over a specified range of frequencies. The impedance of either the transmission line, or the antenna, or both, may be adjusted to effect the match.
天线匹配
指定频率范围内，调整阻抗使得天线的输入阻抗等于或大致等于其发射线路特性阻抗的过程。无论是发射线路还是天线的阻抗（或是两者兼有），都可以通过调节达到匹配。
Antenna Noise Temperature
The temperature of a hypothetical resistor at the input of an ideal noise-free receiver that would generate the same output noise power per unit bandwidth as that at the antenna output at a specified frequency. The antenna noise temperature depends on antenna coupling to all noise sources in its environment as well as on noise generated within the antenna. The antenna noise temperature is a measure of noise whose value is equal to the actual temperature of a passive device.
天线噪声温度
理想无噪声接收机输入端假负载的温度，每单位带宽产生的输出噪声功率与指定频率上的天线输出功率相同。天线噪声温度的高低与天线相连接的环境噪声源以及天线内部噪声有关系。天线噪声温度是噪声的衡量标准，其温度值等于实际的无源器件温度。
Antenna Power Gain
An FCC term for "the square root of the ratio of the root- mean-square free space field intensity produced at one mile in a horizontal plane in micro- volts per meter for one kilowatt antenna input power 137.6 mV/m." This ratio may be expressed in dB.
天线功率增益
FCC术语，“水平面1英里处产生的自由空间场强的均方根比值的平方根，表示为微伏每米。输入功率为1千瓦的天线功率增益为137.6 mV/m。”该比值单位是分贝。
Antenna Power Input
An FCC term for the RF peak or RMS power supplied to the antenna from its associated transmission line and matching network.
天线功率输入
FCC术语，由天线相关发射线路及匹配网络提供给天线的射频峰值功率或均方根功率。
Antenna Structure
An FCC term which refers to the whole tower system including radiation system, supporting structure and any "surmounted appurtenances."
天线结构
FCC术语，指整个天线塔系统，包括辐射系统，支持结构以及任意“顶部附属器件”。
