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1. 发明授权

US06334050B1 Arrangement and a method relating to a radio unit 失效
标题翻译：无线电单元的布置和方法
公开(公告)号：US06334050B1
公开(公告)日：2001-12-25
申请号：US09095942
申请日：1998-06-12
申请人： Ulf Bertil Christian Skärby
发明人： Ulf Bertil Christian Skärby
IPC分类号： H04B104
CPC分类号： H03G3/3068 , H03G3/3047
摘要： An arrangement for controlling and adjusting the output power of radio frequency signals sent from a radio unit (100) and the input power of radio frequency signals received by the radio unit. Variations in the amplification/attenuation of transmitter-and-receiver units are simultaneously compensated for in both the transmitter part and the receiver part of the units so that the amplification will remain the same irrespective of these variations in operation. A detector signal (Udet) is compared with a reference signal (Uref) by a difference amplifier (112), which generates a difference signal (Ue). The detector signal (Udet) is measured by a power sensing means provided in the vicinity of an antenna (113), and corresponds to the power at which radio frequency signals are transmitted. The reference signal (Uref) corresponds to a desired power of transmitted radio frequency signals. The difference signal (Ue) generated by the difference amplifier (112) controls the setting of the amplification of a first variable amplifier (109) and a second variable amplifier (110), adapted to amplify radio frequency signals that are transmitted and received respectively.
摘要翻译：一种用于控制和调整从无线电单元（100）发送的射频信号的输出功率和由无线电单元接收的射频信号的输入功率的装置。发射器和接收器单元的放大/衰减的变化在单元的发射器部分和接收器部分中同时被补偿，使得放大将保持相同，而与操作的这些变化无关。检测器信号（Udet）通过差分放大器（112）与参考信号（Uref）进行比较，差分放大器（112）产生差分信号（Ue）。检测器信号（Udet）由设置在天线（113）附近的功率检测装置测量，并且对应于发射射频信号的功率。参考信号（Uref）对应于所发送的射频信号的期望功率。由差分放大器（112）产生的差分信号（Ue）控制第一可变放大器（109）和第二可变放大器（110）的放大设置，其适于放大分别发射和接收的射频信号。

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