Radio frequency feedback detection circuit, antenna assembly and electronic equipment

Abstract

The invention discloses a radio frequency feedback detection circuit, an antenna assembly and electronic equipment, and the circuit comprises a radio frequency circuit which comprises a radio frequency output end and a feedback receiving end; an antenna tuning circuit the output end of which is coupled with the antenna; and an isolation circuit which is coupled with the radio frequency output endof the radio frequency circuit, the input end of the antenna tuning circuit and the feedback receiving end of the radio frequency circuit, and is used for forming a signal transmitting path from the radio frequency output end to the antenna tuning circuit and forming a signal reflecting path from the antenna tuning circuit to the feedback receiving end. In this way, interference of reflected signals can be prevented, and the accuracy of signal detection is improved.

Description

technical field [0001] The present application relates to the field of radio frequency technology, in particular to a radio frequency feedback detection circuit, an antenna component and electronic equipment. Background technique [0002] When an electronic device performs radio frequency communication, due to changes in the communication environment, such as changes in the temperature of the electronic device from indoors to outdoors, changes in hand posture, etc., the state of the radio frequency link in the electronic device will fluctuate accordingly. The most typical It is the gain change of the radio frequency link and the antenna impedance change. If the internal link of the electronic device is not adjusted in time, the communication quality of the electronic device will be affected. Contents of the invention [0003] A technical solution adopted in this application is to provide a radio frequency feedback detection circuit, the radio frequency feedback detection c...

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Problems solved by technology

[0002] When an electronic device performs radio frequency communication, due to changes in the communication environment, such as changes in the temperature of the electronic device from indoors to outdoors, changes in the holding posture, etc., the state of the radio frequency link in the electronic device will fluctuate accordingly. The most typical It is the gain change of the radio frequency link and the antenna impedance change. If the internal link of the electronic device is not adjusted in time, it will affect the communication quality of the electronic device

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