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Metasurface-based broadband differential antenna

A metasurface and broadband technology, applied in the field of terahertz communication, can solve the problem of narrow bandwidth of differential antennas, and achieve the effect of broadband characteristics and high gain characteristics

Inactive Publication Date: 2019-07-09
X TRIP INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a metasurface-based broadband differential antenna, aiming to solve the technical problem of narrow bandwidth of differential antennas in the prior art

Method used

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  • Metasurface-based broadband differential antenna
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Embodiment Construction

[0021] The present invention will be described in further detail below in conjunction with specific examples. The following examples are explanations of the present invention, and the present invention is not limited to the following examples.

[0022] refer to figure 1 , figure 2 , image 3 , Figure 4 as shown, figure 1 It is a schematic diagram of the layered structure of the preferred embodiment of the metasurface-based broadband differential antenna of the present invention. figure 2 It is a structural schematic diagram of the upper surface of the first dielectric plate of the preferred embodiment of the metasurface-based broadband differential antenna of the present invention. image 3 It is a structural schematic diagram of the metal layer of the preferred embodiment of the metasurface-based broadband differential antenna of the present invention. Figure 4 It is a structural schematic diagram of the lower surface of the second dielectric plate in a preferred emb...

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Abstract

The invention provides a metasurface-based broadband differential antenna. The metasurface-based broadband differential antenna comprises a first dielectric plate, a second dielectric plate and a metal layer attached between the first dielectric plate and the second dielectric plate, wherein a rectangular gap is formed in the metal layer; a circular metal sheet with a gap is attached to the uppersurface of the first dielectric plate, and a metal feeder line is attached to the lower surface of the second dielectric plate; the circular metal sheet with the gap is provided with a first horizontal strip-shaped gap and second horizontal strip-shaped gaps which are arranged on the two sides; the circular metal sheet with the gap is provided with a first vertical strip-shaped gap and second vertical strip-shaped gaps which are arranged on the two sides; the metal feeder line comprises a cross part and two U-shaped parts which are symmetric about the cross section; and the cross-shaped upperend part of the cross part extends into the U-shaped part at the upper end, and the cross-shaped lower end part of the cross part extends into the U-shaped part at the lower end. The metasurface-basedbroadband differential antenna can achieve broadband characteristics and high-gain characteristics.

Description

technical field [0001] The invention relates to the technical field of terahertz communication, in particular to a metasurface-based broadband differential antenna. Background technique [0002] An antenna is a transformer that transforms a guided wave propagating on a transmission line into an electromagnetic wave propagating in an unbounded medium (usually free space), or vice versa. The differential antenna is a dual-port feed antenna. The differential antenna has two ports that are fed at the same time. The two ports are fed with an odd-mode signal with equal amplitude and opposite phase, which generates excitation and radiates out. Using a differential antenna directly integrated into a differential circuit can avoid the use of a balun, thereby reducing the loss and volume of the overall circuit, so there are more and more differential antenna applications. However, the bandwidth of the traditional differential antenna in the prior art is very narrow, and how to increa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/50H01Q15/00
CPCH01Q1/50H01Q15/0013
Inventor 曲美君邓力李书芳张贯京葛新科张红治
Owner X TRIP INFORMATION TECH CO LTD
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