Adjustable multi-band antenna system

A multi-frequency antenna and adjustable technology, which is applied in the direction of antenna, antenna support/installation device, and device that enables the antenna to work in different bands at the same time, can solve the problem of small antenna space, small mobile phone antenna space, and unfavorable antenna of metal structural parts. design and other issues to achieve the effect of wide bandwidth and multiple frequency bands
CN103326124BInactive Publication Date: 2015-04-01SHANGHAI AMPHENOL AIRWAVE COMM ELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI AMPHENOL AIRWAVE COMM ELECTRONICS CO LTD
Publication Date
2015-04-01
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an adjustable multi-band antenna system which is suitable for mobile terminals with metal frame structures. The adjustable multi-band antenna system comprises a metal frame, a PCB and an antenna part. According to the adjustable multi-band antenna system, the metal frame is designed as one part of an aerial radiation body, a clearance is formed in the metal frame, a low-frequency branch is arranged to be combined with the metal frame to generate low-frequency resonance oscillation, and a high-frequency branch is arranged for generating high-frequency resonance oscillation. An IFA mode is adopted by the adjustable multi-band antenna system, the metal frame is used for achieving the ground point supporting section of the IFA antenna, and a low-frequency coupling part and a high-frequency coupling part can be added additionally according to needs. The adjustable multi-band antenna system has the advantages that the clearance of the metal frame is formed in the bottom, the collision on the clearance can be avoided to the greatest extent in an actual using process of a user, and the phenomenon that when the antenna is held by the hand performance is poor is avoided. The working frequency band of the adjustable multi-band antenna system is 704Mhz to 960Mhz and 1710Mhz to 2700Mhz, and multiple frequency broadband can be achieved. Compared with a traditional general antenna, the adjustable multi-band antenna system has the advantages of being multiple in frequency band and wide in bandwidth.
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Description

technical field

[0001] The invention belongs to the technical field of antennas, and in particular relates to an adjustable multi-frequency antenna system. Background technique

[0002] Mobile terminal antenna multi-frequency broadband has always been the development direction of mobile communication, especially for portable mobile terminals. 2170Mhz. On the other hand, with the application of LTE technology, in addition to the above frequency bands, LTE700MHZ is also included, so the bandwidth of low frequency is 700Mhz-960Mhz. Some also include high-band LTE2.3GHZ and LTE2.5GHZ, so the high-frequency bandwidth is 2500Mhz-2700Mhz. 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 704-960Mhz and 1710-2700Mhz frequency bands also brings challenges to th...

Claims

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