Small-size three-in-one multi-frequency ceramic antenna

A ceramic antenna, small-sized technology, applied in the direction of antenna grounding device, independent antenna unit combination, antenna support/mounting device, etc., can solve the problems of low efficiency, poor frequency band isolation, difficult tuning, etc., to achieve size Small size, good isolation, and easy integration

Inactive Publication Date: 2013-08-28
SHANGHAI AMPHENOL AIRWAVE COMM ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, integrating multi-band antennas into one ceramic body at the same time will lead to problems such as poor isolation between frequency bands, low efficiency, and difficult tuning.

Method used

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  • Small-size three-in-one multi-frequency ceramic antenna
  • Small-size three-in-one multi-frequency ceramic antenna
  • Small-size three-in-one multi-frequency ceramic antenna

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Embodiment Construction

[0039] The invention will be described in more detail hereinafter with reference to the accompanying drawings showing embodiments of the invention. However, this invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In these drawings, the size and relative sizes of layers and regions may be exaggerated for clarity.

[0040] refer to Figure 1-3 As shown, the present invention provides a small-sized three-band multi-band ceramic antenna, which is installed in the clearance area of ​​a main board of a communication device. The following communication device will be described in detail by taking a mobile phone as an example. The small-sized three-band multi-band ceramic antenna is set in the clearance area of ​​the mobile phone main board...

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Abstract

The invention provides a small-size three-in-one multi-frequency ceramic antenna which comprises a ceramic substrate, wherein two ends of the ceramic substrate are connected with a first frequency band antenna part and a second frequency band antenna part respectively, and the distance between the other end of the first frequency band antenna part and the other end of the second frequency band antenna part is very small to enhance coupling between the first frequency band antenna part and the second frequency band antenna part, produce good resonance, and improve isolation. The first frequency band antenna part and the second frequency band antenna part are connected with a communication module to receive video signals of different frequency bands, and a third frequency band antenna part is arranged between the first frequency band antenna part or the second frequency band antenna part and the communication module to receive radio-frequency signals of a third frequency band. A metal sheet and two grounding parts are arranged below vertical projections of the first frequency band antenna part and the second frequency band antenna part on the ceramic substrate, one end of each grounding part is connected with the metal sheet in a welded mode, the other end of each grounding part is grounded, the isolation is improved, and the resonance is regulated. The small-size three-in-one multi-frequency ceramic antenna can be used in two or more than three frequency bands, and the isolation among all the frequency bands is good.

Description

[0001] technical field [0002] The invention relates to the technical field of mobile phone antenna design, in particular to a small-sized three-band multi-band ceramic antenna. [0003] Background technique [0004] Due to the high dielectric constant of the ceramic antenna, for a fixed frequency antenna, the size can be doubled and the antenna can be miniaturized. [0005] However, integrating multi-band antennas into one ceramic body at the same time will lead to problems such as poor isolation between frequency bands, low efficiency, and difficult tuning. Contents of the invention [0006] The present invention aims to provide a small-sized three-band multi-band ceramic antenna, which can be used in the case of small antenna space, low profile, more than two frequency bands, and high isolation between frequency bands under the circumstances. [0007] The present invention is a small-sized three-band multi-frequency ceramic antenna, which is located in the clearance...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q21/30H01Q1/24H01Q1/48
Inventor 张国辉董孩李
Owner SHANGHAI AMPHENOL AIRWAVE COMM ELECTRONICS CO LTD
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