Imitated localized surface plasmon-based subwavelength antenna and array thereof

A local surface plasmon and sub-wavelength technology, which is applied in the direction of separately energized antenna arrays and radiating element structures, can solve the problems of large size and large collection antenna size, and achieve small size, light weight, and low cost Effect

Inactive Publication Date: 2016-08-17
SHANGHAI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The bandwidth and gain of a conventional antenna depend on its geometric structure and size, and higher gain often means larger size
At this time, compared with modules such as rectifier circuits, energy management and storage, and sensors, the size of the collection antenna is too large. For a wireless sensor network with hundreds or thousands of nodes, such a large antenna is impractical

Method used

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  • Imitated localized surface plasmon-based subwavelength antenna and array thereof
  • Imitated localized surface plasmon-based subwavelength antenna and array thereof
  • Imitated localized surface plasmon-based subwavelength antenna and array thereof

Examples

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Embodiment Construction

[0018] The present invention will be further elaborated below in conjunction with the accompanying drawings and preferred embodiments.

[0019] see figure 1 , figure 2 and image 3 , a sub-wavelength antenna based on imitated localized surface plasmons, which includes a grooved metal ring structure 1, an upper dielectric layer 2, a microstrip line metal patch 8, a lower dielectric layer 14, and a metal patch from top to bottom. The floor 15 , the grooved metal ring structure 1 , the upper dielectric layer 2 , the microstrip metal patch 8 , the lower dielectric layer 14 and the metal floor 15 are attached to each other.

[0020] The grooves uniformly distributed along the circumferential direction are etched on the grooved metal ring structure 1, and are divided into two parts by the ring structure 6, the inner and outer grooves, the inner and outer grooves are composed of straight grooves with the same groove depth, and the remaining metal parts are in the shape of Approxi...

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Abstract

The invention discloses an imitated localized surface plasmon-based subwavelength antenna and an array thereof. An antenna unit sequentially comprises a grooving metal ring structure, an upper medium layer, a microstrip line metal patch, a lower medium layer and a metal floor from top to bottom, wherein the grooving metal ring structure, the upper medium layer, the microstrip line metal patch, the lower medium layer and the metal floor are mutually laminated; and the distance between the units of the antenna array is subwavelength size. The imitated localized surface plasmon-based subwavelength antenna has the advantages of being small in size (subwavelength), light in weight, low in cost, relatively high in gain and the like, is suitable for being applied to a wireless energy collection system; and electronic equipment of a WSN, an RFID and the like are supplied with electricity by the anntenna.

Description

technical field [0001] The invention relates to a sub-wavelength antenna based on imitation localized surface plasmons and its array, belonging to the technical field of new artificial electromagnetic materials, energy collection and recovery, and the antenna and its array can be applied to the Internet of Things, Radio Frequency Identification (RFID) ) and wireless sensor networks (WSN) and other fields. Background technique [0002] As the two core technologies of the Internet of Things, radio frequency identification (RFID) and wireless sensor network (WSN) have attracted great attention from the international academic and business circles, and government departments of various countries are also actively promoting the development of the Internet of Things. IoT technologies such as WSN and RFID have been applied in various fields: such as national defense security, space detection, environmental monitoring, etc. RFID and WSN nodes are widely distributed, have a large num...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q21/08
CPCH01Q1/38H01Q21/08
Inventor 周永金肖前循
Owner SHANGHAI UNIV
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