Method and device for detecting connection state of antenna and feed line

A feeder connection and antenna technology, which is applied in the field of detection of antenna and feeder connection status and devices, can solve the problems of reducing system cost, complex multi-antenna intelligent detection and real-time performance, and achieves the advantages of overcoming poor real-time performance, avoiding errors, and simple circuit design Effect

Inactive Publication Date: 2006-03-08
BEIJING ELECTRIC POWER ECONOMIC RES INST +1
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Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide a method and device for detecting the connection status of antennas and feeders in a communication system, which can partially solve the c

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  • Method and device for detecting connection state of antenna and feed line
  • Method and device for detecting connection state of antenna and feed line

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[0028] specific implementation plan

[0029] The present invention consists of the following two parts: an antenna connection detection circuit 2 and an antenna detection comparison circuit 3 . The main function of the antenna connection detection circuit is to extract the connection detection signal of the antenna 1 of the antenna feeder system. It is necessary to convert the open and short circuit state of the antenna feeder system 1 into corresponding output voltage signals of different values, and at the same time connect the antenna 1 connection detection circuit to the antenna feeder. The adverse effects of the system are minimized.

[0030]The antenna detection comparison circuit 2 compares the antenna connection detection signal obtained by the antenna 1 connection signal extraction circuit with the comparison threshold set by the antenna detection comparison circuit 3. When the detection signal level obtained by the antenna connection detection signal circuit 1 is hig...

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Abstract

The device includes testing circuit for antenna connection and comparator circuit for antenna inspection. The said testing circuit for antenna connection is in use for connecting to output port of the antenna in system of antenna and feed line, as well as picking up signal of testing antenna connection, and converting states of open circuit / short circuit of system of antenna and feed line into relevant output electrical signal in different numerical values. The comparator circuit for antenna inspection is in use for comparing the signal of testing antenna connection from the testing circuit with a given comparison threshold. When signal level of testing antenna connection is higher than the given threshold, high electrical level is output and alarm signal is sent out. The invention solves partially issues of complexity of antenna standing wave ratio detection method and poor real time of back power detection method. The invention also lowers cost and complexity.

Description

technical field [0001] The present invention relates to a method and device for detecting whether the connection state of an antenna feeder system is normal at the output port of a transceiver in the field of communication, and in particular to a detection of an antenna feeder system whose antenna output port is in a DC short-circuit state with its metal casing. method. Background technique [0002] Antennas and corresponding feeder systems are essential and important components in wireless communication systems of various communication systems. As an important interface part in wireless communication systems, the antenna feeder subsystem has a decisive effect on the normal operation of the system. In some communication systems, in order to cover a long communication distance, the height of the antenna is very high, which causes great difficulties to the manual detection and fault judgment of the working status of the antenna feeder. At the same time, the antenna is an impor...

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Application Information

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IPC IPC(8): H04B17/00H04B7/00H04B17/12
Inventor 余敏德王颜杨云涛郭耀斌
Owner BEIJING ELECTRIC POWER ECONOMIC RES INST
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