Board-level radio frequency signal test system, method and device without radio frequency test socket

Abstract

The board-level radio frequency signal testing system, method and device proposed by the present invention without radio frequency test socket are used to test radio frequency signals of radio frequency circuits; including radio frequency test probes, tuning modules and test instrument modules, one end of radio frequency test probes and radio frequency The antenna shrapnel of the circuit is connected, and the other end is connected to the tuning module; the tuning module is connected to the test instrument module, and the tuning module adjusts the matching impedance according to the return loss; the matching impedance matches the impedance of the radio frequency circuit; The shrapnel of the antenna is electrically connected, and then the size of the matching impedance is adjusted through the tuning module, and the size of the return loss can be used to judge whether the matching impedance is matched in place until the matching impedance matches the impedance in the radio frequency circuit, so that it can be directly passed through the antenna. The purpose of the shrapnel for RF signal testing; the test results are rigorous and the structure is ingenious; the design space and production cost of the RF test socket in the RF circuit are saved.

Description

technical field [0001] The invention relates to the technical field of radio frequency signal testing, in particular to a board-level radio frequency signal testing system, method and device without a radio frequency test seat. Background technique [0002] In recent years, with the continuous development of communication technology, the popularity of wireless products has become higher and higher, and the number of wireless products produced in the world is also increasing every year, and people's production and life are becoming more and more convenient. Wireless products (represented by mobile phones) mainly refer to the communication frequency operating at 300kHz~300GHz, and the communication signals in this frequency range are also called radio frequency signals. In order to ensure the quality of the RF signal on the motherboard of wireless products and meet a series of the most basic wireless communication requirements of wireless products, it is usually necessary to p...

AI Technical Summary

Problems solved by technology

At present, more RF test sockets are added to the motherboard of wireless products through the design and development stage; the number of RF test sockets on the motherboard of wireless products in the 2~4G era is calculated in single digits, and this number will rise to 10 in the 5G era The above is to meet the needs of traditional board-level RF testing; for wireless products with increasingly complex designs, higher performance, and better user experience, the design space on the motherboard is very limited, and more than 10 RF test sockets It is only to meet the test requirements of ensuring the quality of radio frequency signals before the launch of wireless products, and does not improve the quality of sending and receiving radio frequency signals on the board of wireless products after listing

Instead, it is necessary to reserve more than 10 board-level RF test socket installation spaces on the limited motherboard space in the wireless product design stage, and increase the material cost of wireless products

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