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Multi-band Antenna System for Mobile Terminals with Metal Frame Structure

A mobile terminal and multi-frequency antenna technology, which is applied to antenna equipment with additional functions, antennas, antenna supports/mounting devices, etc., can solve the problems of small space for mobile phone antennas, unfavorable antenna design, and difficult antenna design, etc., and reach the frequency band Multiple, small space occupied, wide bandwidth effect

Active Publication Date: 2016-01-13
SHANGHAI AMPHENOL AIRWAVE COMM ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, due to the complexity of functions such as mobile phone terminals, the space for mobile phone antennas is getting smaller and smaller. Therefore, based on the premise of being responsible for the small space in the environment, debugging an antenna covering the frequency bands of 704-960Mhz and 1710-2700Mhz also brings challenges to the antenna design. difficulty
[0003] In addition, portable terminal products with metal texture are favored by consumers, but too many metal structural parts are not conducive to antenna design

Method used

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  • Multi-band Antenna System for Mobile Terminals with Metal Frame Structure
  • Multi-band Antenna System for Mobile Terminals with Metal Frame Structure
  • Multi-band Antenna System for Mobile Terminals with Metal Frame Structure

Examples

Experimental program
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Effect test

Embodiment 1

[0036] It is suitable for multi-frequency antenna system of mobile terminal with metal frame structure, including metal frame, PCB board and antenna part; PCB board is a general printed circuit board (Printed circuitboard).

[0037] Such as figure 1 As shown, the metal frame includes a top frame 102, a bottom frame 103, a first side frame 106, and a second side frame 107. The top frame 102, the first side frame 106, the bottom frame 103, and the second side frame 107 sequentially enclose a first side frame. A space, a first gap 104 is provided between one end of the bottom frame 103 and one end of the first side frame 106, and a second gap 105 is provided between the other end of the bottom frame 103 and one end of the second side frame 107. The metal frame is wrapped around the mobile terminal; the top frame 102 corresponds to the top of the mobile terminal, the bottom frame 103 corresponds to the bottom of the mobile terminal, and the first side frame 106 and the second side fra...

Embodiment 2

[0056] Such as Figure 7 As shown, the difference between this embodiment and Embodiment 1 is that the feeding part further includes a location 201, and the feeding wiring part further includes a second feeding branch 210; one end of the second feeding branch 210 is connected to the location 201, The other end of the second feeding branch 210 is connected to an end of the first feeding branch 204 close to the feed source 200.

[0057] In this embodiment, the feeding part adopts the IFA form. Compared with the T-shaped wiring method of the monopole antenna (MONOPOLE) in the embodiment 1, the working principle and the effect of this embodiment are the same as those in the embodiment 1. Basically the same, except that the second feed branch 210 and the location 201 in this embodiment are omitted in Embodiment 1, and the length of the wiring is slightly shorter than this embodiment, which can further compress the space occupied by the antenna. This embodiment can As an alternative to...

Embodiment 3

[0060] Such as Figure 8 As shown, the difference between this embodiment and Embodiment 1 is that the first low-frequency coupling arm 301 and the second low-frequency coupling arm 302 are both arranged above the clearance area 101 and are located in the same plane as the feeder wiring portion.

[0061] The working principle and technical effects of this embodiment are basically the same as those of Embodiment 1. The positions of the first low-frequency coupling arm 301 and the second low-frequency coupling arm 302 can be adjusted according to the surrounding environment. When the low-frequency coupling arm 301 and the second low-frequency coupling arm 302 need to be provided with other components of the mobile terminal at corresponding positions in the clearance area 101, the solution of this embodiment can be adopted. The positions of the first low-frequency coupling arm 301 and the second low-frequency coupling arm 302 are not limited to Figure 8 In the middle position, both ...

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Abstract

The invention discloses a multi-frequency antenna system applicable to a mobile terminal with a metal frame structure. The multi-frequency antenna system comprises a metal frame, a PCB and an antenna part. The metal frame is designed to be part of an antenna radiation body, two gaps are formed in the bottom portion of the metal frame, a feeding wiring part and the metal frame together form a T-shaped monopole antenna or an IFA antenna so that the metal frame itself can be used for producing low frequency and high frequency resonance, and other coupling parts can be additionally arranged to be used for adjusting the low frequency and high frequency resonance according to the needs of working frequency bands. The multi-frequency antenna system has the advantages that due to the fact that the gaps of the metal frame are formed in the bottom portion, a user can be prevented from touching the gaps during the actual use process, and the phenomenon that the performance of the antenna is poor when the antenna is held by a hand is avoided; the working frequency bands of the multi-frequency antenna system are 704Mhz-960Mhz and 1710Mhz-2700Mhz, and multi-frequency broadband is realized; compared with a traditional general antenna, the multi-frequency antenna system is multiple in frequency band and broad in frequency width; the antenna structure of the multi-frequency antenna system is small in occupied space, and mutual influence cannot be generated between the antenna structure and surrounding environments.

Description

Technical field [0001] The invention belongs to the field of antenna technology, and specifically relates to a multi-frequency antenna system suitable for a mobile terminal with a metal frame structure. Background technique [0002] The antenna multi-frequency broadband of mobile terminals has always been the development direction of mobile communication, especially portable mobile terminals. Universal Mobile Telecommunications System (UMTS) has become the current mainstream, with frequency bandwidths of 824Mhz-960Mhz and 1710Mhz-2170Mhz. On the other hand, with the application of LTE technology, in addition to the above frequency bands, LTE700MHZ is also included, so the low frequency bandwidth is 700Mhz-960Mhz. Some also include high frequency bands LTE2.3GHZ and LTE2.5GHZ, so the high frequency bandwidth is 2500Mhz-2700Mhz. In addition, due to the complexity of mobile phone terminals and other functions, the space of mobile phone antennas is getting smaller and smaller, so ba...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/44H01Q5/10H01Q5/20H01Q1/22
Inventor 董孩李
Owner SHANGHAI AMPHENOL AIRWAVE COMM ELECTRONICS CO LTD
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