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A Modulated Metasurface-Based Ultra-Wideband Dual Endfire Antenna

An ultra-broadband and super-surface technology, applied in the field of antennas, can solve the problems of high antenna thickness and cost, and achieve the effects of easy manufacturing, high signal-to-noise ratio, and simple structure

Active Publication Date: 2020-03-17
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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  • A Modulated Metasurface-Based Ultra-Wideband Dual Endfire Antenna
  • A Modulated Metasurface-Based Ultra-Wideband Dual Endfire Antenna
  • A Modulated Metasurface-Based Ultra-Wideband Dual Endfire Antenna

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Embodiment Construction

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

[0034] figure 1 It is the overall schematic diagram of the antenna of the present invention, such as figure 1 Shown: An ultra-wideband double-endfire antenna based on a modulated metasurface of the present invention, including 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, including ultra-wideband planar dipoles; the surface wave waveguide part is arranged on the dielectric substrate, including 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 good impedance matching characteristics in the 1.85-5.65GHz frequency band.

[0036] The periodic patch on the upper surface of the dielectri...

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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 double endfire antenna based on a modulation metasurface. Background technique [0002] With the rapid development of wireless communication technology, surface wave antenna has been welcomed by people as a novel antenna structure. Different from the traditional radiation principle of side propagation and side radiation, the surface wave antenna is an antenna that can guide waves to propagate on the surface without radiation. Only when there is a change in its structure, the surface wave will be cut off 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. Traditional surface wave antennas are implemented using a corrugated metal su...

Claims

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Application Information

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