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Multi-frequency antenna and radio communication system having same

A multi-frequency antenna and antenna technology, which is applied to devices, antennas, and resonant antennas that enable antennas to work in different bands at the same time, can solve the problems of multi-frequency antennas that do not have versatility and large volume, and achieve thinness, The effect of enhancing versatility and increasing bandwidth

Inactive Publication Date: 2009-11-25
SHENZHEN FUTAIHONG PRECISION IND CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Single-frequency antenna devices are generally not easy to meet people's needs for multi-band wireless communication devices, and existing multi-band wireless communication devices generally need to install multi-frequency antennas. A large part of the space, and most of the multi-frequency antennas do not have high versatility, and cannot meet the requirements of communication systems in different frequency bands at the same time and cooperate with the development trend of wireless communication devices towards thinner and lighter

Method used

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  • Multi-frequency antenna and radio communication system having same
  • Multi-frequency antenna and radio communication system having same
  • Multi-frequency antenna and radio communication system having same

Examples

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Embodiment Construction

[0012] The multi-frequency antenna of the present invention is installed in a portable wireless communication device (not shown) such as a mobile phone, a personal digital assistant (PDA), and is electrically connected to a circuit substrate in the wireless communication device, Used to transmit and receive radio waves to transmit and exchange radio data signals.

[0013] see figure 1 and figure 2 , the circuit substrate 10 is provided with a signal transmission terminal 11 and a ground plane 13 . The multi-frequency antenna 20 is a substantially rectangular planar inverted F antenna (PIFA), which includes a feeding end 21 , a radiator 23 and a grounding end 25 . The emitter 23 is roughly in the shape of a rectangular thin sheet, which is installed above the circuit substrate 10 in a direction parallel to the surface of the circuit substrate 10, and is connected to the signal of the circuit substrate 10 through the feed-in terminal 21 and the ground terminal 25 correspondin...

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Abstract

The invention discloses a multi-frequency antenna, which is a plate type antenna and comprises a feed-in end, a transmitter and a grounding end. The transmitter comprises a main body, a first transmitting arm, a second transmitting arm and a third transmitting arm, wherein the first transmitting arm, the second transmitting arm and the third transmitting arm are formed by extending and bending the main body and share the feed-in end. During the operation of the multi-frequency antenna, the first transmitting arm, the second transmitting arm and the third transmitting arm of the multi-frequency antenna generate three resonance frequencies according to a radio-frequency signal fed in by the feed-in end to generate different operation frequencies, so that the multi-frequency antenna has a property of multi-frequency operation. The invention also discloses a radio communication system having the multi-frequency antenna.

Description

technical field [0001] The invention relates to an antenna, in particular to a multi-frequency antenna suitable for multiple operating frequencies 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 (PDA) have emerged one after another and entered thousands of households, making consumers The convenience brought by high technology can be enjoyed anytime and anywhere, making these portable wireless communication devices 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 data signals is undoubtedly one of the most important components in the wirele...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/36H01Q5/00H01Q9/04H01Q21/30H01Q5/364
CPCH01Q9/0421H01Q1/243H01Q5/0055H01Q5/364
Inventor 潘俊良
Owner SHENZHEN FUTAIHONG PRECISION IND CO LTD
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