Concave conformal dielectric resonator antenna and working method thereof

Abstract

The invention discloses a concave conformal dielectric resonator antenna and a working method thereof, and the antenna comprises a dielectric resonator, a ground plate, a dielectric substrate, a feedseam and a feed line. The ground plate is conformal with the dielectric resonator, and the dielectric resonator is fixed at the middle of ground plate. The upper and lower surfaces of the dielectric substrate are respectively attached to and cover the ground plate and the feed line. The center of the ground plate is provided with the feed seam in a mode of etching. The antenna is fed by the feed line, and then the electromagnetic wave energy is coupled and conducted to the dielectric resonator on the upper surface through the feed seam on the ground plate. The antenna has a very low profile due to the conformal structure, reduces the space occupied by the antenna in a vertical direction, is easy for processing, is of a wearable structure, is wide in application range, is flexible in application scenarios, has a higher gain and a narrower beam, and has a bigger bandwidth.

Description

technical field [0001] The invention relates to the technical field of conformal wearable antennas, in particular to a concave conformal dielectric resonator antenna and a working method thereof. Background technique [0002] With the rapid development of wireless communication technology, people have higher and higher requirements for the portability of wireless communication devices, and various wearable devices emerge in an endless stream, which prompts the development of wireless communication devices in the direction of conformality. [0003] So far, most conformal antennas in the industry are based on microstrip antennas, which use flexible substrates such as: 1. Polyimide, polyethylene terephthalate, polylactic acid, photo paper and other organic flexible media; 2. , felt, woven fabric and other fabrics. The metal patch should be flexible copper foil or conductive fabric. However, dielectric resonator antennas have not been practically used in low-profile conformal ...

AI Technical Summary

Problems solved by technology

The concave dielectric resonator antenna on a conformal floor can be regarded as a variant of the truncated ring dielectric resonator antenna on a flat floor. However, the traditional cavity mode theory does not account for the external leakage of the dielectric resonator antenna due to too many approximations Waves and other reasons, the accuracy is not good, the applicability is not wide

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