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Signal detection circuit and electronic equipment

A signal detection and circuit technology, applied in electrical components, transmission monitoring, transmission systems, etc., can solve the risk of harmonics and random inspection, and the production line cannot screen out the electronic equipment at risk of harmonics in advance, and there is no harmonics. Signal detection function and other problems to achieve the effect of reducing harmonic risk and sampling risk

Active Publication Date: 2021-03-02
VIVO MOBILE COMM CO LTD
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  • Claims
  • Application Information

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Problems solved by technology

[0004] At present, the radio frequency architecture adopted by the communication industry can only detect the power of the fundamental wave signal, and there is no detection function for the power of the harmonic signal. As a result, the production line cannot screen out electronic equipment with harmonic risks in advance. Leading to high harmonic risk and random inspection risk during certification testing

Method used

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  • Signal detection circuit and electronic equipment
  • Signal detection circuit and electronic equipment
  • Signal detection circuit and electronic equipment

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Embodiment Construction

[0030]The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary, and are only used to explain the present invention, but should not be understood as limiting the present invention. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.

[0031]The characteristics of the terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of these characteristics. In the description of the present invention, unless otherwise specified, "plurality" means two or more. In addition, "and / or...

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Abstract

The invention discloses a signal detection circuit and electronic equipment. The signal detection circuit comprises: a signal generation module; an antenna which is connected with the first output endof the signal generation module; a first coupler, wherein the input end of the first coupler is connected with the second output end of the signal generation module; a harmonic signal detection module, wherein the input end of the harmonic signal detection module is connected with the output end of the first coupler; and a modem, wherein the input end of the modem is connected with the output endof the harmonic signal detection module, and the output end of the modem is connected with the control end of the harmonic signal detection module. The signal detection circuit can detect the harmonic signal through the harmonic signal detection module under the condition that the radio frequency signal transmitted by the signal generation module comprises the harmonic signal, thereby greatly reducing the harmonic risk during the authentication test.

Description

Technical field[0001]This application belongs to the technical field of electronic circuits, and specifically relates to a signal detection circuit and electronic equipment.Background technique[0002]Radio frequency interference is currently a difficult problem in the mobile communication industry. Radio frequency interference generated by an electronic device may seriously affect the normal communication of other electronic devices. Radio frequency interference certification test items are the most concerned certification test items for all electronic equipment manufacturers one.[0003]In related technologies, because electronic equipment contains various non-linear devices such as power amplifiers and switches, the appearance of harmonics is inevitable. Therefore, harmonic spurious interference is the most serious and common in radio frequency interference.[0004]The current radio frequency architecture used in the communications industry can only detect the power level of the fundam...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/00H04B17/10H04B17/20
CPCH04B17/0085H04B17/101H04B17/20
Inventor 刘松贺晨阳
Owner VIVO MOBILE COMM CO LTD
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