Board-level radio frequency signal testing system, method and device without radio frequency testing base

Abstract

The invention provides a board-level radio frequency signal testing system, method and device without a radio frequency testing base, which are used for testing radio frequency signals of a radio frequency circuit. The board-level radio frequency signal testing system device comprises a radio frequency test probe, a tuning module and a test instrument module, one end of the radio frequency test probe is connected with an antenna elastic sheet of a radio frequency circuit, and the other end is connected with the tuning module; the tuning module is connected with the test instrument module; thetuning module adjusts the matching impedance according to the return loss; the matching impedance is matched with the impedance of the radio frequency circuit; the radio frequency test probe is directly and electrically connected with the antenna elastic sheet in the radio frequency circuit; then, the tuning module is used for adjusting the matching impedance, and whether the matching impedance ismatched in place or not can be judged according to the return loss until the matching impedance is matched with the impedance in the radio frequency circuit, so that the purpose of directly testing aradio frequency signal through the antenna elastic sheet is achieved; the test result is rigorous and the structure is ingenious; and the design space and the production cost of a radio frequency test base in a radio frequency 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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