Multi-band antenna and wireless communication device possessing same

A technology for multi-frequency antennas and main antennas, which is applied to devices that enable antennas to work in different bands at the same time, antenna support/installation devices, antennas, etc., which can solve the problem that the antenna bandwidth is not wide enough and it is difficult to meet multiple different frequency bands at the same time communication system etc.

Active Publication Date: 2016-06-01
SHENZHEN FUTAIHONG PRECISION IND CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional single-frequency antenna devices cannot meet people's needs for multi-band wireless communication devices. Therefore, in order to meet users' needs for multi-band wireless communication devices,

Method used

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  • Multi-band antenna and wireless communication device possessing same
  • Multi-band antenna and wireless communication device possessing same
  • Multi-band antenna and wireless communication device possessing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] see figure 1 , the wireless communication device 100 in a preferred embodiment of the present invention may be, but not limited to, a mobile phone or a tablet computer. The wireless communication device 100 includes a circuit substrate 10 , a multi-frequency antenna 200 and a carrier 30 . The multi-frequency antenna 200 is electrically connected to the circuit substrate 10 and disposed on the carrier 30 . The multi-frequency antenna 200 includes a main antenna 201, a parasitic antenna 202 and a switching circuit 203 (such as image 3 shown). The main antenna 201 includes a feeding portion 21 , a grounding portion 22 , a radiation portion 23 and a grounding extension path 24 . Both the feeding portion 21 and the grounding portion 22 are electrically connected to the circuit substrate 10 , and are respectively used for feeding signals and providing grounding for the antenna. The ground extension path 24 is connected to the ground portion 22 and the radiation portion 2...

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Abstract

A multi-band antenna provided by the present invention comprises a main antenna, a parasitic antenna and a switching circuit, the main antenna comprises a radiation part, a feed-in part, a grounding part and a grounding extension path connected with the radiation part and the grounding part, and the feed-in part is used to feed in a current signal. The grounding part is used to provide the ground connection to the multi-band antenna, the switching circuit is electrically connected with the grounding extension path and is used to switch different matching circuits to the grounding extension path to change the low frequency resonant frequency of the multi-band antenna, and the parasitic antenna is in interval arrangement with the main antenna, is coupled to the main antenna and is used to motivate a high frequency resonance modality. The multi-band antenna possesses a wider bandwidth. The present invention also relates to a wireless communication device possessing the multi-band antenna.

Description

technical field [0001] The invention relates to the field of antennas, in particular to a multi-frequency antenna and a wireless communication device with the multi-frequency antenna. Background technique [0002] With the rapid development of wireless communication technology and information processing technology and the improvement of people's living standards, portable wireless communication devices such as mobile phones and personal digital assistants (personal digital assistants, PDAs) have emerged and entered thousands of households, enabling consumers to use them at any time. With the convenience brought by high technology anywhere, these portable wireless communication devices have become an indispensable part of modern people's daily life. [0003] In these wireless communication devices, the antenna device used to transmit and receive radio waves to transmit and exchange radio signals is undoubtedly one of the most important components in the wireless communication...

Claims

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Application Information

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IPC IPC(8): H01Q5/10H01Q1/50H01Q1/24
CPCH01Q1/243H01Q5/328H01Q5/371H01Q5/378H01Q5/335
Inventor 林彦辉
Owner SHENZHEN FUTAIHONG PRECISION IND CO LTD
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