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Ultra-wideband and double-end-fire antenna based on modulating ultra surface

An ultra-broadband, super-surface technology, applied in the field of antennas, can solve the problems of heavy cost and high cost of antennas, and achieve the effects of high signal-to-noise ratio, easy manufacturing, and high-end radiation peak gain.

Active Publication Date: 2018-08-21
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Traditional surface wave antennas are implemented using a corrugated metal surface, which makes the antenna heavy and expensive

Method used

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  • Ultra-wideband and double-end-fire antenna based on modulating ultra surface
  • Ultra-wideband and double-end-fire antenna based on modulating ultra surface
  • Ultra-wideband and double-end-fire antenna based on modulating ultra surface

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Embodiment Construction

[0033] Hereinafter, the preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0034] figure 1 Is the overall schematic diagram of the antenna of the present invention, such as figure 1 Shown: an ultra-wideband dual end-fire antenna based on a modulated metasurface of the present invention includes four parts: a surface wave transmitter part, a surface wave waveguide part, a dielectric substrate and a coaxial line.

[0035] Wherein, the surface wave transmitter part is arranged on the dielectric substrate and contains an ultra-wideband planar dipole; the surface wave waveguide part is arranged on the dielectric substrate and contains multiple sizes (refractive index) and the same unit period. The patch guides the surface wave to propagate on the surface, so that the antenna has a good impedance matching characteristic in the 1.85-5.65GHz frequency band.

[0036] The periodic patches on the upper surface of the dielect...

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Abstract

The invention discloses an ultra-wideband and double-end-fire antenna based on a modulating ultra surface, and belongs to the technical field of antennas. The ultra-wideband and double-end-fire antenna comprises a surface wave emitter, a surface wave waveguide, a dielectric substrate and a coaxial line, and the surface wave emitter is partially arranged on the dielectric substrate, and comprises aplanar dipole; the surface wave waveguide is partially arranged on dielectric substrate and comprises pasters with multiple sizes and the same unit period; the coaxial line comprises an inner core, adielectric layer and an outer conductor, the inner core is connected with one arm of the planar dipole, and an outer conductor of a feeder line is connected with the other arm of the planar dipole. The ultra-wideband and double-end-fire antenna has the advantages of having a wide bandwidth, double end fires, high gain, and high radiation efficiency; meanwhile, the ultra-wideband and double-end-fire antenna has a simple structure and a low section height.

Description

Technical field [0001] The invention belongs to the technical field of antennas, and relates to an ultra-wideband dual-end-fire antenna based on a modulation metasurface. Background technique [0002] With the rapid development of wireless communication technology, surface wave antennas have been welcomed as a novel antenna structure. Different from the traditional antenna's radiation principle of side propagation and side radiation, a surface wave antenna is an antenna that can guide waves to propagate on the surface without radiating. Only when there is a change in its structure, the surface wave will be truncated to generate radiation. At present, metasurface antennas are widely used in radar antennas, aircraft surface antennas, and antenna modules of communication systems due to their low profile height, easy conformality, strong concealment, low air resistance, simple structure, and high gain. The traditional surface wave antenna is realized by using a rippled metal surface...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/50
CPCH01Q1/38H01Q1/50
Inventor 李梅张艺曼唐明春
Owner CHONGQING UNIV