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Double-frequency inverted F shape antenna

An antenna and coaxial transmission line technology, applied in the field of dual-frequency inverted F-shaped antennas, can solve the problems of not being able to fully cover the full frequency band of 2.4 and 5GHz, and increasing the complexity of circuit design.

Active Publication Date: 2005-09-28
昆山展腾电子科技有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] At present, electronic communication products suitable for WLAN have some conventional inverted F-shaped antenna designs. Most of these designs are single-frequency operation in the 2.4GHz frequency band or dual-frequency operation but can only cover 5.2 or 5.8 at 5GHz. One of the GHz frequency bands cannot completely cover the 2.4 and 5GHz frequency bands (including 5.2 and 5.8GHz frequency bands), and in the dual-frequency operation part usually requires two current paths to cause dual-band operation, such as US Patent No. 6,686,886 "applied to "Integrated antenna for laptop applications" discloses a design of an inverted F-shaped antenna built in a laptop and integrated with the ground plane of the screen. Although the antenna has Dual-frequency operation (2.4 / 5.2GHz), but only 5.2GHz frequency band can be included in 5GHz, and its dual-frequency operation must be formed by different current paths, which increases the complexity of circuit design

Method used

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Embodiment Construction

[0023] Such as figure 1 Shown is an embodiment of the dual-frequency inverted-F antenna of the present invention, the structure of the dual-frequency inverted-F antenna 1 of the present invention includes a ground metal sheet 10, a first radiating metal sheet 11, and a second radiating metal sheet 12 , a short-circuit metal arm 13 and a feed-in coaxial transmission line 14 and other components, wherein a short-circuit point 101 and a ground point 102 are provided near the edge 103 of the ground metal sheet 10 for connecting with other components, and the short-circuit point 101 Then it is in contact with the short-circuit metal arm 13, and the grounding point 102 is in contact with the outer ground conductor 142; the first radiating metal sheet 11 is located above the edge 103 of the grounding metal sheet 10 and is approximately parallel to the edge 103; The second radiating metal sheet 12 is located above the edge 103 of the grounding metal sheet 10 and is approximately perpe...

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Abstract

The present invention relates to a dual-frequency inverted-F antenna. It includes a grounding metal strip, a first radiation metal strip, a second radiation metal strip, a short-circuit metal arm and a feeding-in coaxial transmission line. Said invention also provides the concrete action of the above-mentioned every component, and also provides the connection mode of all the above-mentioned components. Said invention can utilize single path, and not only can cover wireless region network 2.4 GHz, but also can meet the requirement for covering all-band 5.2 and 5.8 GHz frequency band.

Description

【Technical field】 [0001] The invention relates to a dual-band inverted-F shape antenna (dual-band inverted-F shape antenna), in particular to a dual-band inverted-F shape antenna applied to wireless communication products. 【Background technique】 [0002] With the rapid development of wireless local area network (WLAN) in recent years, the performance requirements of the antenna are also gradually increasing, not only requiring the miniaturization of the size, but also must have the characteristics of built-in, integration and multi-band , to be competitive in the market. [0003] At present, electronic communication products suitable for WLAN have some conventional inverted F-shaped antenna designs. Most of these designs are single-frequency operation in the 2.4GHz frequency band or dual-frequency operation but can only cover 5.2 or 5.8 at 5GHz. One of the GHz frequency bands cannot completely cover the 2.4 and 5GHz frequency bands (including 5.2 and 5.8GHz frequency bands)...

Claims

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Application Information

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IPC IPC(8): H01Q1/36H01Q5/10H01Q13/08
Inventor 吴文芳邱宗文傅国展萧富仁
Owner 昆山展腾电子科技有限公司
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