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公开(公告)号：US4776032A
公开(公告)日：1988-10-04
申请号：US940134
申请日：1986-12-10
申请人： Hitoshi Odate , Hisao Takahashi , Toshio Suzuki , Toshio Nojima , Sadayuki Nishiki , Teruya Fujii
发明人： Hitoshi Odate , Hisao Takahashi , Toshio Suzuki , Toshio Nojima , Sadayuki Nishiki , Teruya Fujii
CPC分类号： H04B7/15535 , H04B1/525 , H04B7/15578
摘要： The system for measuring the spillover signal from a transmitter to a receiver in a same frequency repeater or a booster has a frequency conversion device which slightly offsets the transmission frequency from the reception frequency, and a signal detector which measures the offset frequency component in the reception signal. The offset frequency is around 100 Hz, which is higher than the fading frequency, and low enough not to affect the operation of receivers. The measured spillover level is used to control the gain of the repeater, and/or to cancel the spillover signal, so that the repeater has the maximum gain without suffering from oscillation.
摘要翻译： 用于测量来自相同频率转发器或升压器中的发射机到接收机的溢出信号的系统具有使发送频率与接收频率稍微偏移的频率转换装置，以及测量接收中的偏移频率分量的信号检测器 信号。 偏移频率约为100Hz，高于衰落频率，足够低，不影响接收机的操作。 测量的溢出电平用于控制中继器的增益和/或消除溢出信号，使得中继器具有最大增益而不会发生振荡。
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公开(公告)号：US5146178A
公开(公告)日：1992-09-08
申请号：US759565
申请日：1991-09-13
申请人： Toshio Nojima , Sadayuki Nishiki
发明人： Toshio Nojima , Sadayuki Nishiki
CPC分类号： H03F3/2176 , H03F3/2171
摘要： An impedance matched class-F high frequency amplifier includes an input matching circuit receiving high frequency signals connected to the gate of the FET. The drain of the FET is connected to an output matching circuit which matches the fundamental frequency and the second harmonic frequency, and the output of the output matching circuit is connected to an even harmonic terminating circuit. The stray reactance componance at the output impedance of the FET is offset by the output matching circuit, and therefore the even harmonics terminating circuit can more accurately terminate the second harmonic frequencies.
摘要翻译： 阻抗匹配的F类高频放大器包括输入匹配电路，其接收连接到FET的栅极的高频信号。 FET的漏极连接到匹配基频和二次谐波频率的输出匹配电路，并且输出匹配电路的输出连接到均衡谐波终端电路。 FET的输出阻抗上的杂散电抗分量由输出匹配电路偏移，因此偶次谐波终端电路可以更准确地终止二次谐波频率。
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公开(公告)号：US4772856A
公开(公告)日：1988-09-20
申请号：US72207
申请日：1987-07-10
申请人： Toshio Nojima , Sadayuki Nishiki
发明人： Toshio Nojima , Sadayuki Nishiki
摘要： An input signal is divided equally by a divider and the equally divided outputs are applied to first and second amplifying means, respectively. A filter means, which rejects the fundamental wave component of the input signal but passes therethrough its harmonic component, is connected between the first and second amplifying means. The outputs of the first and second amplifying means are respectively connected to first and second select circuits which select the fundamental wave components of the input signal. The outputs from the first and second circuits are combined in phase with each other, by a combiner, into a composite signal.
摘要翻译： 输入信号被分频器均等地分配，并且等分的输出分别被施加到第一和第二放大装置。 滤波器装置连接在第一和第二放大装置之间，该滤波器装置拒绝输入信号的基波分量但是通过其谐波分量。 第一和第二放大装置的输出分别连接到选择输入信号的基波分量的第一和第二选择电路。 来自第一和第二电路的输出由组合器彼此相位组合成复合信号。
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