A device and method for measuring voltage standing wave ratio
A technology of voltage standing wave ratio and measuring device, applied in the field of communication, can solve the problems of wrong antenna connection state, inaccurate voltage standing wave ratio, etc., and achieve the effect of reducing measurement errors or errors, accurate judgment, and accurate voltage standing wave ratio.
Active Publication Date: 2018-08-24
ALCATEL LUCENT SHANGHAI BELL CO LTD
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[0006] Therefore, the voltage standing wave ratio detected based on the method of the prior art is generally not accurate enough, which easily leads to a wrong judgment on the connection state of the antenna
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[0031] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0032] figure 2 A structural schematic diagram of an exemplary measuring device for measuring voltage standing wave ratio according to the present invention is shown. The measuring device according to the invention comprises said measuring device comprising a signal extraction device 1 , a correction device 2 and a reading device 3 .
[0033] Preferably, the measurement device may further include a signal amplifying device capable of amplifying the initial input signal, such as a power amplifier, so as to transmit the amplified initial input signal to the signal extraction device 1 .
[0034] Wherein, the signal extraction device 1 is used for extracting an initial reflection signal / interference signal corresponding to the input signal.
[0035] Wherein, the interference signal is a signal generated due to interference from other devices in the circuit dur...
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The invention provides a measurement device used for measuring a voltage standing wave ratio and a method employing a measurement device to measure the voltage standing wave ratio of a to-be-measured antenna. The device comprises a signal extraction device used for extracting an initial reflection signal corresponding to an input signal / an interference signal in the initial reflection signal, a correction device used for correcting phases and amplitudes of the initial reflection signal / the interference signal by utilizing a correction signal, a reading device used for reading the correction signal from the correction device and the initial reflection signal / the interference signal to carry out vector subtraction to acquire a result signal, the phases and the amplitudes of the initial reflection signal / the interference signal are respectively determined, and the voltage standing wave ratio of the to-be-measured antenna is determined based on the phases and the amplitudes of the initial reflection signal and the interference signal corresponding to the same input signal and the same to-be-measured antenna.
Description
technical field [0001] The invention relates to the technical field of communication, in particular to a device and method for measuring voltage standing wave ratio. Background technique [0002] In the prior art, the voltage standing wave ratio (Voltage Standing Wave Ratio, VSWR) of the antenna needs to be adjusted in radio frequency equipment such as a radio remote unit (Radio Remote Unit, RRU) or a transceiver duplexer (Transceiver duplexer, TRDU) module. Detect to determine the connection status of the antenna. In order to obtain the VSWR of the antenna, it is necessary to measure the voltage value of the reflected signal generated by the antenna. However, based on the methods of the prior art, the measured reflected signal often contains interference signals. [0003] figure 1 A schematic structural diagram of a device for detecting voltage standing wave ratio according to the prior art is shown. refer to figure 1 , the device includes an amplifier, a coupler, two f...
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IPC IPC(8): G01R27/06
Inventor 黎峰王昌弢张龙飞张曼
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD