Miniaturized high-efficiency UHF (Ultra High Frequency) low-profile broadband antenna adopting SPP structure

A broadband antenna and high-efficiency technology, applied in the field of antennas, can solve problems such as low gain, achieve the effects of reducing the working wavelength, simple antenna structure, and increasing the current length

Active Publication Date: 2018-02-09
SHANGHAI JIAO TONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the defects in the prior art, the purpose of the present invention is to provide a low-profile broadband antenna with a miniaturized high-efficiency UHF frequency band using an SPP structure, which solves the low-gain problem in the application of the existing U-segment antenna

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  • Miniaturized high-efficiency UHF (Ultra High Frequency) low-profile broadband antenna adopting SPP structure
  • Miniaturized high-efficiency UHF (Ultra High Frequency) low-profile broadband antenna adopting SPP structure
  • Miniaturized high-efficiency UHF (Ultra High Frequency) low-profile broadband antenna adopting SPP structure

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Embodiment Construction

[0043] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0044] Please also see figure 1 , figure 2 , A miniaturized high-efficiency UHF frequency band low-profile broadband antenna provided by the present invention includes: a coplanar waveguide structure, an SPP transmission line structure, an antenna radiation structure, an impedance matching structure of a magnetic resonance structure, and an SMA connector.

[0045] The antenna radiation structure is figure 1 In addition to the coplanar waveguide microstrip line structure Ⅰ, the gradual comb-tooth-shap...

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Abstract

The invention provides a miniaturized high-efficiency UHF (Ultra High Frequency) low-profile broadband antenna adopting an SPP structure, which is applied to the technical field of communication. Theminiaturized high-efficiency UHF low-profile broadband antenna comprises a coplanar waveguide structure, an SPP transmission line structure, an antenna radiation structure, an impedance matching structure and an SMA joint, and is characterized in that the antenna forms transmits from a coplanar waveguide form to an SPP mode; the impedance matching structure is arranged at the tail end so as to reduce the reactance of a low frequency band; the coplanar waveguide structure, the SPP transmission line structure, the antenna radiation structure and the impedance matching structure are arranged on adielectric plate structure of the antenna; and radio frequency excitation is performed on the antenna by adopting an SMA joint side feeding mode in antenna feeding. The miniaturized high-efficiency UHF low-profile broadband antenna solves a problem of low gain in the existing U-band antenna applications.

Description

technical field [0001] The invention relates to an antenna, in particular to a miniaturized high-efficiency UHF frequency band low-profile broadband antenna adopting a microwave surface plasmon (SPP for short) structure. Background technique [0002] With the development of modern communication technology, people's requirements for electronic equipment are getting higher and higher, and the equipment is required to have the function of broadband sharing. As an important part of the radio system, the antenna is becoming more and more miniaturized and broadband attention of researchers. At the same time, the working wavelength of the antenna in the UHF frequency band is large. Using the conventional antenna working mode, the size of the antenna is relatively large, and it is difficult to achieve broadband and other characteristics in a limited space. In addition, due to the simple structure of the microstrip antenna itself, it is easy to process and use, and it is more and mo...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q1/50
CPCH01Q1/38H01Q1/50
Inventor 耿军平王栋梁仙灵金荣洪朱卫仁戚贺
Owner SHANGHAI JIAO TONG UNIV
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