发明名称 |
RADIO RELAY AMPLIFIER |
摘要 |
<p>PROBLEM TO BE SOLVED: To obtain a radio relay amplifier in which possibility of a destroyed power amplifier is precluded even with a digital burst signal and the service life is not decreased. SOLUTION: A radio relay amplifier 1A is provided with a comparator 10 that compares a comparison output of a comparator 8 with an excess input reference voltage Vrefu and provides an output of a pulse discrimination signal in the case that the comparison output is larger than the excess input reference voltage Vrefu and a peak hold circuit 11 that holds tentatively a pulse discrimination signal of the comparator 10 and a high frequency switch/attenuator 13 that attenuates an input signal power by a prescribed level with an output of a comparator 12 when an output of the peak hold circuit 11 is more than a lower limit threshold voltage VL.</p> |
申请公布号 |
JPH10271054(A) |
申请公布日期 |
1998.10.09 |
申请号 |
JP19970067942 |
申请日期 |
1997.03.21 |
申请人 |
KOKUSAI ELECTRIC CO LTD |
发明人 |
KAGAYA NORIYUKI;OKUBO YOICHI;NORICHIKA MICHIO;SUDO MASAKI |
分类号 |
H04B17/40;H04B7/15;H04B7/26;(IPC1-7):H04B7/15;H04B17/02 |
主分类号 |
H04B17/40 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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