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Dual-frequency PIFA antenna applied to coupled feeding of internet of things

A technology of coupling feeding and Internet of Things, which is applied to antennas, antenna parts, antenna grounding devices, etc., can solve problems such as insufficient impedance and gain, inability to meet the communication needs of 1.8GHz and 2.4GHz frequency bands, and large volume, etc., to reduce profile, improving the effect of operating frequency offset and impedance mismatch

Active Publication Date: 2019-12-20
GUIZHOU POWER GRID CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In order for IoT sensors to work in different frequency band scenarios, it is necessary for the sensor antenna to cover as many frequency bands as possible. However, traditional PIFA antennas have disadvantages such as large size, insufficient impedance and gain, and cannot meet the requirements of 1.8GHz and 2.4GHz frequency bands. communication needs

Method used

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  • Dual-frequency PIFA antenna applied to coupled feeding of internet of things
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  • Dual-frequency PIFA antenna applied to coupled feeding of internet of things

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Embodiment Construction

[0019] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0020] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

[0021] In the present invention, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "...

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Abstract

The invention discloses a dual-frequency PIFA antenna applied to coupled feeding of the internet of things. The antenna comprises a feed patch, a short-circuit patch and a ground plate and a radiationpatch which are arranged on different planes respectively, wherein the radiation patch and the ground plate are directly provided with air cavities; the short-circuit patch is connected between the radiation patch and the ground plate; and the feed patch is arranged above the radiation patch and connected to a coaxial conductor. The dual-frequency PIFA antenna can be applied to the coupled feeding technology of the internet of things, and simultaneously meets communication requirements of frequency bands of 1.8GHz and 2.4GHz.

Description

technical field [0001] The present invention relates to the technical field of PIFA antennas, in particular to a dual-frequency PIFA antenna for coupled feeding applied to the Internet of Things. Background technique [0002] With the development of wireless communication technology, the Internet of Things has become a research hotspot in the field of wireless communication. A key technology in the IoT system is radio frequency technology, and the performance of the sensor antenna will have a strong impact on the performance of the entire IoT system. Therefore, it is extremely important to design a suitable sensor antenna with excellent performance for the entire IoT system. Due to the diversity of IoT sensor application scenarios, the sensor antenna is required to have the characteristics of low profile and small size. Therefore, the sensor antenna type can be monopole antenna, microstrip antenna and PIFA antenna (Planar Inverted-F Antenna, Planar Inverted-F Antenna, etc.)...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/24H01Q1/36H01Q1/48H01Q1/50H01Q5/20
CPCH01Q1/241H01Q1/36H01Q1/48H01Q1/50H01Q5/20
Inventor 刘旭刘康石际汤玮金海张光辉尹志帆
Owner GUIZHOU POWER GRID CO LTD