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Multiband antenna apparatus

A multi-band antenna and wireless communication device technology, applied to antennas, devices that enable antennas to work in different bands at the same time, resonant antennas, etc., can solve the problem of not being able to increase frequency bands

Inactive Publication Date: 2009-02-11
ARIMA COMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the traditional antenna device is only suitable for single-band or dual-band, it is obviously impossible to increase the frequency band so that it can be used simultaneously in the global system for mobile communication (GSM), digital communication system (DCS), personal communication service system (PCS) and wideband code division. Applicable to multiple access system (WCDMA)

Method used

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Embodiment Construction

[0034] Some typical embodiments embodying the features and advantages of the present invention will be described in detail in the ensuing description. It should be understood that the present invention can have various changes in different states without departing from the scope of the present invention, and that the description and illustrations therein are illustrative in nature rather than limiting the present invention.

[0035]Please refer to FIG. 3 , which is a schematic structural diagram of a multi-band antenna device according to a preferred embodiment of the present invention. As shown in Figure 3, the multi-band antenna device 2 of the present invention is made of an inverted F-shaped planar antenna device, and the multi-band antenna device 2 of the present invention has a first radiating portion 21, a second radiating portion 22, a third radiating portion part 23 , a shared feed-in terminal 24 and a shared ground terminal 25 . The multi-band antenna device 2 of th...

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Abstract

The invention provides a multi-band antenna device and is applicable to a wireless communication device. The multi-band antenna device at least comprises a first radiation part, a second radiation part, a third radiation part, a feed-in terminal and an earthing terminal, wherein the second radiation part is connected with the first radiation part and has a shorter path length relative to the first radiation part, the third radiation part is connected with the first radiation part and has a shorter path length relative to the first radiation part, the feed-in terminal is connected with the second radiation part, the earthing terminal is at least connected partially with the third radiation part and / or the first radiation part. The first, the second and the third radiation parts share the feed-in terminal and the earthing terminal, the wireless signal of a first bandwidth is received and transmitted by the first radiation part, and the wireless signals of a plurality of different second bandwidths are received and transmitted by the second and the third radiation parts.

Description

technical field [0001] The invention relates to an antenna device, in particular to a multi-band antenna device used in a wireless communication device. Background technique [0002] In recent years, due to the vigorous development of the wireless communication industry, portable wireless communication devices such as mobile phones or personal digital assistants have become necessities in people's lives, creating a more convenient living environment. However, in this type of portable wireless communication device, the antenna device plays an important role in transmitting and receiving wireless signals, so the operating characteristics of the antenna device directly affect the ability and quality of wireless signal transmission and reception of the wireless communication device. [0003] Generally, the antenna devices of portable wireless communication devices can be roughly divided into two types: exposed type and hidden type. A common exposed antenna device is a helical a...

Claims

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Application Information

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IPC IPC(8): H01Q5/00H01Q13/08H01Q9/30H01Q21/30H01Q5/10H01Q5/28H01Q5/307
Inventor 彭奂喆赖国仁
Owner ARIMA COMM CORP LTD
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