Miniature patch antenna

Abstract

The invention discloses a miniature patch antenna which comprises the components of a broken line type radiation patch which is arranged on the front surface of a dielectric substrate, and an edge front loading unit and an edge back loading unit, wherein one end of the broken line type radiation patch is connected with a feeding part; the edge front loading unit and the edge back loading unit arecorrespondingly arranged and are respectively positioned on the front surface and the back surface of the dielectric substrate, and a spacing groove is formed between the edge front loading unit and the broken line type radiation patch. According to the invention, the broken line type radiation patch, i.e., a non-existing planar radiation patch, is adopted, and the perimeter of the broken line type radiation patch can be increased without changing the area of the patch, so that the current flowing path is increased, and the miniaturization design is realized; the edge front surface loading patches and the edge back surface loading patches on the front and back surfaces improve the current distribution in the antenna, and can reduce the resonant frequency of the antenna or reduce the size of the antenna under the same working frequency, thereby further realizing the miniaturization of the antenna, and ensuring the stable working frequency band of the miniature patch antenna at the sametime.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to a miniature patch antenna. Background technique [0002] WLAN is the abbreviation of Wireless Local Area Network (wireless local area network). It is a technology combining wireless communication and computer network. It is a solution for wireless data transmission and can realize user mobility. Due to its low price, flexible networking form, and support for high-speed data access, WLAN has been applied in industries such as medical care, manufacturing, and retail. [0003] With the proposal of the IEEE802.11b / g (2.4-2.4835GHz) standard and technological progress including antennas, the wireless LAN communication technology has developed rapidly, which can achieve the coverage of the entire area while taking into account the signal strength of each point . At the same time, the demand for WLAN antennas is gradually increasing. Whether it is a mobile phone, a wireless network c...

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Problems solved by technology

[0005] In 2019, Yan Dong et al. designed a microstrip antenna with two parts, the top radiating patch and the bottom microstrip feeder (Yan Dong, Du Peixun, Wang Ping, Chen Junyu, Dong Teng, Research and Implementation of 2.4GHz Broadband Circularly Polarized Microstrip Antenna [J], 2019.34 (3); 380-389 pages, DOI: 10.23443 / j.cjors.2018072001), to achieve 2.05GHz-3.9 GHz broadband coverage, the antenna has good circular polarization characteristics, but the antenna size is relatively small Large, reaching 35mm*41mm, which is not conducive to application, such as integration with active circuits has limitations

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