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Antenna circuit and mobile terminal

An antenna circuit and tuning circuit technology, applied in the directions of antennas, circuits, resonant antennas, etc., can solve problems such as affecting antenna performance and insufficient antenna bandwidth, so as to solve the problem of insufficient bandwidth of intermediate frequency or high frequency, improve performance, and improve bandwidth. Effect

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

AI Technical Summary

Problems solved by technology

[0006] The embodiment of the present invention provides an antenna circuit and a mobile terminal to solve the problem that the bandwidth of the antenna's intermediate frequency or high frequency is insufficient and the performance of the antenna is affected

Method used

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  • Antenna circuit and mobile terminal
  • Antenna circuit and mobile terminal
  • Antenna circuit and mobile terminal

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Embodiment Construction

[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0047] like Image 6 As shown, an embodiment of the present invention provides an antenna circuit, including:

[0048] Antenna unit 610;

[0049] The antenna unit 610 is provided with a switching circuit connection point 611 and a feeding point 612;

[0050] An antenna feed 620 is connected to the feed point 612;

[0051] The switching circuit connection point 611 is connected with a first tuning circuit 630, and the first tuning circuit 630 is use...

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Abstract

The invention provides an antenna circuit and a mobile terminal, and relates to the technical field of mobile terminal antennas. The antenna circuit includes: an antenna unit; the antenna unit is provided with a switch circuit connection point and a feed point; the feed point is connected with an antenna feed; the switch circuit connection point is connected with a first tuning circuit, so The first tuning circuit is used to increase the single resonant mode bandwidth of medium and high frequency and / or tune the resonant frequency of medium and high frequency; wherein, the distance from the feed point to the end of the antenna unit is greater than the distance from the connection point of the switching circuit to the Distance from the end of the antenna element. In the above solution, by exchanging the position of the connection point of the switching circuit of the antenna unit and the feed point, the feed point is set closer to the ground end of the antenna unit and moved, thereby solving the problem of insufficient resonance bandwidth of the antenna at medium and high frequencies. In this way, the bandwidth of the resonant mode of the middle and high frequency is effectively improved, and the performance of the antenna is improved.

Description

technical field [0001] The present invention relates to the technical field of mobile terminal antennas, in particular to an antenna circuit and a mobile terminal. Background technique [0002] In order to increase the Internet access rate of mobile terminals, multi-CA (carrier aggregation) technology has been popularized, such as China Mobile's B39+B41 "IF + HF" CA combination, and recently China's telecom operators have proposed low-frequency (0.7~ A frequency band of 0.96Ghz) such as B5, combined with intermediate frequency (1.71~2.17G) such as B1 and B3, constitutes a "low frequency + intermediate frequency" CA combination. In the future, telecom operators may also launch a "low frequency + high frequency" CA combination. Multi-CA technology requires mobile terminal antennas to support these frequency bands at the same time, instead of the previous time-sharing support, which brings great challenges to mobile terminal antennas. [0003] In recent years, mobile terminal...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q23/00H01Q1/50
CPCH01Q1/50H01Q23/00H01Q5/328H01Q5/335H01Q9/42H01Q1/243
Inventor 李日辉
Owner VIVO MOBILE COMM CO LTD
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