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Sum-difference beam antenna with asymmetric double artificial surface plasmon

An artificial surface plasmon, asymmetric technology, applied in the direction of antenna, antenna grounding switch structure connection, electrical components, etc., can solve the problems of large feeding loss, complex feeding network structure, etc., to achieve low loss, simple feeding, Use simple effects

Active Publication Date: 2020-08-18
SOUTHEAST UNIV
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  • Claims
  • Application Information

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Problems solved by technology

Existing antennas usually use two identical antennas to realize the sum beam and difference beam through different feed networks, which makes the structure of the feed network more complex and the feed loss is relatively large

Method used

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  • Sum-difference beam antenna with asymmetric double artificial surface plasmon
  • Sum-difference beam antenna with asymmetric double artificial surface plasmon
  • Sum-difference beam antenna with asymmetric double artificial surface plasmon

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Embodiment Construction

[0030] The specific implementation manners of the present invention will be further described below in conjunction with the drawings and examples. The specific embodiments described here are only used to explain the present invention, and the present invention cannot be limited by the specific embodiments.

[0031] The embodiment that the present invention adopts is:

[0032] The asymmetric dual artificial surface plasmon and difference beam antenna consists of a dielectric substrate 1, a transition section 2 from a coplanar waveguide on the dielectric substrate 1 to the artificial surface plasmon, an upper artificial surface plasmon 31 and The lower artificial surface plasmon 32 is composed of; there are metal conductors 4 on both sides of the dielectric substrate 1, and they are symmetrically distributed on both sides of the dielectric substrate 1, and are connected by metallized vias 5; the transition section 2 is composed of a feed section 21 and a gradient section 22 The...

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Abstract

A sum-difference beam antenna with asymmetric double artificial surface plasmon is composed of a dielectric substrate (1), and a transition section (2) from a coplanar waveguide to the artificial surface plasmon, an upper artificial surface plasmon (31) and a lower artificial surface plasmon (32) which are on the dielectric substrate (1). Metal conductors (4) are arranged on the two surfaces of the dielectric substrate (1), are symmetrically distributed on the two surfaces of the dielectric substrate (1) and are connected through metallized via holes (5), the upper artificial surface plasmon (31) and the lower artificial surface plasmon (32) share one common side edge (30) but have different dispersion characteristics, and two different modes are transmitted. When the end-fire direction isat different frequencies, the sum wave beams and the difference wave beams are alternately presented, and when the frequency varies between the frequency of the sum beam and the frequency of the difference beam, the beam direction scans around the end-fire direction. The antenna has the characteristic of simple feeding while realizing the sum-difference wave beams, and the feeding loss is reduced.

Description

technical field [0001] The patent of the present invention relates to a sum-difference beam antenna, especially an asymmetric double artificial surface plasmon sum-difference beam antenna. Background technique [0002] In positioning and tracking applications, since the gain of the difference beam near zero decreases sharply in a very narrow angle range, the difference beam has the function of precise positioning; the sum beam and the difference beam are often used in combination, and the high gain characteristic of the sum beam is used for Find the target and determine the general direction of the target. Existing antennas usually use two identical antennas to realize the sum beam and the difference beam through different feed networks, which makes the structure of the feed network more complicated and the feed loss is also relatively large. [0003] Artificial surface plasmon polaritons (SSPPs) are single-conductor transmission lines in the microwave or terahertz frequenc...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q1/50H01Q15/00
CPCH01Q1/38H01Q1/50H01Q15/0086H01Q15/0046
Inventor 李顺礼张遒逸赵洪新
Owner SOUTHEAST UNIV
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