Complementing ground holographically modulated surface dual-beam high-gain antenna

Abstract

The invention discloses a complementing ground holographically modulated surface dual-beam high-gain antenna, and mainly solves the problem of the influence of differences of floor structures on the radiation characteristic of the antenna. The antenna comprises a dielectric substrate, a holographic metal patch, a feed source monopole and a holographic complementing ground, wherein the holographic metal patch is printed on the upper surface of the dielectric substrate, and serves as a holographic surface structure of the antenna; the feed source monopole is arranged on the edge of the dielectric substrate, and is used for realizing antenna feeding; the holographic complementing ground is arranged on the lower surface of the dielectric substrate, and serves as an antenna ground; the holographic complementing ground and the holographic metal patch are mutual complementing structures, and the holographic complementing ground is used for forming near field coupling with the holographic metal patch under the excitation of the feed source monopole, thereby endowing the antenna with a dual-beam radiation characteristic and simultaneously enhancing the radiation gain of the antenna. According to the scheme, the holographic complementing ground forms near field coupling with the holographic metal patch under the excitation of the feed source monopole, thereby endowing the antenna with the dual-beam radiation characteristic and simultaneously enhancing the radiation gain of the antenna; the antenna has very high practical values and popularization values.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to a complementary holographic modulation surface double-beam high-gain antenna. Background technique [0002] As a kind of artificial electromagnetic surface, holographic modulation surface has excellent characteristics such as simple structure, low profile, high gain, and easy conformality, which provides a new possibility for the precise regulation of electromagnetic waves. It has broad application prospects in the fields of military equipment stealth, multi-target detection and electromagnetic energy collection. [0003] The design idea of ​​holographic modulation surface is largely derived from the combination of optical holography principle and impedance modulation surface. Optical holography can be understood as two steps of recording and reproduction. The first step is holographic recording. The interference fringes of the reference beam and the object beam, including th...

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Problems solved by technology

[0006] The purpose of the present invention is to provide a complementary holographic modulation surface dual-beam high-gain antenna, which mainly solves the influence of the difference in the floor structure in the prior art on the radiation characteristics of the antenna, and obtains an antenna with high-gain dual-beam radiation characteristics

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