System and method for detecting coupling performance of radio frequency circuit and antenna of wireless router

Abstract

The invention provides a system and a method for detecting coupling performance of a radio frequency circuit and an antenna of a wireless router. The system comprises a radio frequency test device, an antenna coupling test apparatus and a terminal. The radio frequency test device comprises a radio frequency circuit and an omnidirectional antenna, the radio frequency circuit is used for performing transmitting and receiving of frequency under a wireless mode, and the omnidirectional antenna is connected with the radio frequency circuit, mounted at a port of the radio frequency test device and used for receiving signals transmitted by the wireless router in a coupling manner; the antenna coupling test apparatus is used for placing a to-be-tested device and calculating air attenuation loss between the antenna of the to-be-tested device and the omnidirectional antenna under the condition of different distance therebetween; and the terminal is used for setting different wireless mode channel frequency, and testing a coupling performance index of the radio frequency circuit and the antenna of the to-be-tested device according to the air attenuation loss under the condition of different distance and different frequency. According to the invention, a problem of matching of the radio frequency circuit and the antenna is located quickly without damage to products, thus, product performance is improved, and test efficiency is increased.

Description

technical field [0001] The invention relates to the technical field of wireless router detection, in particular to a wireless router radio frequency circuit and antenna coupling performance detection system and method. Background technique [0002] Wireless router testing usually uses RF test equipment to test RF transmission power and error vector magnitude (EVM, ErrorVectorMagnitude) and other test indicators, such as figure 1 As shown in the figure, IQxel is connected to a wireless router through a radio frequency cable to test test indicators such as radio frequency transmission power and EVM. [0003] However, this detection model can only test the RF signal at the RF output end. At the same time, antenna manufacturers are considering the cost after making a classic antenna. The larger the number of the same product used, the better the price. match. In order to determine the matching between the antenna and the RF circuit, the RF copper tube is usually directly welde...

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Problems solved by technology

[0003] However, this detection model can only test the RF signal at the RF output end. At the same time, antenna manufacturers are considering the cost after making a classic antenna. The larger the number of the same product used, the better the price. match

In order to determine the matching between the antenna and the RF circuit, the RF copper tube is usually directly welded to the antenna end to debug the RF or the antenna. In this way, the welding test may still be performed when the antenna and the RF circuit have been perfectly matched, resulting in certain labor costs. Waste, or even damage the RF circuit

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