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Double-frequency antenna

A dual-band antenna and antenna technology, which is applied to antennas, resonant antennas, and devices that enable antennas to work in different frequency bands at the same time, can solve the problems of space miniaturization, small clearance area, and inability to simultaneously realize dual frequency bands.

Inactive Publication Date: 2011-06-22
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally, the handheld system antennas are PIFA antennas (Planar Inverted F Antenna), and PIFA antennas require a large clearance area (Planar Inverted F Antenna), which cannot meet the needs of the system for space miniaturization
The traditional folded antenna (Folded Antenna) has a small headroom area, but it cannot meet the requirements of dual frequency bands at the same time

Method used

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Examples

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Embodiment Construction

[0018] Please refer to figure 1 , is a system architecture diagram of the dual-frequency antenna in a preferred implementation manner of the present invention. The dual-band antenna includes an antenna body 1 and a planar substrate 2 laid flat on the lower surface of the antenna body 1 . The planar substrate 2 is made of insulating material. The antenna body 1 includes a first radiating portion 11 , a second radiating portion 12 , and a grounding portion 13 , each of which is in the shape of a narrow strip. The ground portion 13 is a conductor, and the first radiating portion 11 and the second radiating portion 12 respectively extend upward from the upper edge of the ground portion 13 and are bent.

[0019] The first radiating part 11 can be a traditional PIFA antenna, and the second radiating part 12 can be a traditional monopole folded antenna. They are connected through the feeding point A and extend from the same edge of the ground part 13 . figure 1 The relative positi...

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PUM

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Abstract

The invention provides a double-frequency antenna, comprising an antenna body and a substrate for bearing the antenna body, wherein the antenna body comprises a first radiating part, a second radiating part and a grounding part; and the first radiating part, the second radiating part and the grounding part are connected at a feed-in point. The double-frequency antenna can realize double-frequency range and occupies smaller space.

Description

technical field [0001] The invention relates to a dual-frequency antenna, in particular to a dual-frequency antenna with a planar structure. Background technique [0002] With the trend of miniaturization and multi-frequency and multi-mode electronic devices, electronic devices with communication receiving function tend to use small dual-band antennas. Generally, the handheld system antennas are PIFA antennas (Planar Inverted F Antenna), and the PIFA antennas require a large clearance area (Planar Inverted F Antenna), which cannot meet the requirements of system miniaturization. The traditional folded antenna (Folded Antenna) has a small clearance area, but cannot simultaneously meet the requirements of dual frequency bands. Contents of the invention [0003] In view of this, it is necessary to provide an antenna that can realize dual frequency bands while occupying a small space. [0004] The present invention provides a dual-frequency antenna, which includes an antenna...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q5/00H01Q1/36
CPCH01Q9/42
Inventor 杨志渊林坚棠杨铭梁
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD