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Antenna device

An antenna device and radiation unit technology, which is applied in the field of wireless communication, can solve the problems of antenna performance degradation and other problems, and achieve the effect of performance optimization and size reduction

Active Publication Date: 2017-12-01
KUANG CHI INST OF ADVANCED TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the built-in antenna design requires many difficulties in the application under harsh backgrounds such as small spaces and near metal surfaces, which has a great negative impact on the performance of the built-in antenna. When how to improve the built-in antenna and reduce the performance of the antenna is a wireless communication Problems to be faced in system design

Method used

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Embodiment Construction

[0030] Reference will now be made in detail to the embodiments depicted in the accompanying drawings. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be understood by those skilled in the art that the present invention may be practiced without these specific details. In other instances, well-known methods are not described in detail. procedures, components and circuits so as not to unnecessarily obscure the embodiments.

[0031] Please also refer to figure 1 and figure 2 , is a schematic diagram of the antenna device of the present invention built into the casing of the electronic device. The antenna device is vertically arranged on the main board 11 of the electronic equipment, and includes a dielectric substrate 12, a capacitive loading unit 13 arranged on the dielectric substrate 12, a radiation unit 14, a matching unit 16, a capacitor 3, a feed input ...

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Abstract

An antenna device includes: a dielectric substrate; a capacitive loading unit, a radiation unit, a matching unit, a capacitor, a feed input port and a grounding unit are arranged on the dielectric substrate; the matching unit includes a first matching part arranged oppositely and a second matching part, the capacitance is arranged between the first matching part and the second matching part. By using the above-mentioned built-in antenna device, a capacitive loading unit, a radiation unit, a matching unit, a feed input port and a grounding unit are etched on a low-loss dielectric substrate; wherein the capacitive loading unit can reduce the height of the antenna device, further Reduce the size of the antenna device; at the same time, increase the matching unit to match the impedance of the antenna device close to the ideal value. The integration of the above-mentioned components makes the gain of the antenna device of the present invention close to the existing standard dipole antenna, so that the performance of the built-in antenna device is optimized. .

Description

technical field [0001] The present invention relates to the field of wireless communication, more specifically, to a built-in antenna device. Background technique [0002] With the increasing development of wireless communication technology, the demand for wireless communication electronic equipment to communicate in multiple different frequency bands at the same time is increasing. Existing wireless communication electronic equipment generally adopts multiple radio frequency antennas. However, important indicators such as the size, bandwidth, and gain of these antennas are limited by basic physical principles (gain limit, bandwidth limit, etc. at a fixed size). The basic principles of these index limits make the miniaturization of antennas far more difficult than other devices, and due to the complexity of electromagnetic field analysis of radio frequency devices, approaching these limit values ​​has become a huge technical challenge. [0003] In some more complex electro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/38H01Q1/00H01Q23/00
Inventor 刘若鹏徐冠雄邓存喜尹柳中
Owner KUANG CHI INST OF ADVANCED TECH