De-metalized conformal dielectric resonator antenna

Abstract

The invention also discloses a de-metalized conformal dielectric resonator antenna, which includes a floor, a dielectric substrate, a dielectric resonator, a feed slit, a feeder line, a feed port, anda dielectric loading structure. The floor and the dielectric resonator exhibit an arc-shaped conformal feature. The dielectric resonator is fixed to the upper surface of the floor. The upper surfaceof the dielectric substrate is attached to the floor, and the lower surface of the dielectric substrate is attached to the feeder line. The feed slit is etched in the center of the floor. The feed port is located at the joint between the floor and the dielectric substrate. The front surface of the dielectric resonator is attached to the rear surface of the dielectric loading structure, and the dielectric resonator and the dielectric loading structure are fixed to the upper surface of the floor. The antenna achieves feeding by the feeder line. Then, the electromagnetic wave energy is coupled and transferred to the dielectric resonator on the upper surface through the feed slit on the floor. The de-metalized conformal dielectric resonator antenna has a good tuning structure and improved design degree of freedom, realizes flexible control of size and bandwidth, realizes de-metallization, reduces design and application difficulty, and has a wider beam width and higher gain.

Description

Technical field [0001] The present invention relates to the technical field of conformal antennas, in particular to a demetallized conformal dielectric resonator antenna. Background technique [0002] With the rapid development of wireless communication technology, wireless communication devices have begun to develop in the direction of portability, and various wearable electronic devices have emerged as the times require, which also makes the antenna design develop in a conformal direction. [0003] Conformal antenna refers to an antenna that is consistent with the shape of the object structure and does not bring additional burden to the conformal device. The antenna array is "conformal" with the shape of the carrier, which enhances the adaptability. The array antenna has great advantages. In modern wireless communication systems, conformal array antennas have become one of the best in the field of antennas because they can conform to the surface of high-speed carrier platforms s...

AI Technical Summary

Problems solved by technology

[0004] Due to the advantages of high radiation efficiency, low self-loss, multiple radiation modes, easy integration, and diversity of resonator shapes and feeding methods, dielectric resonators have gradually received extensive attention and research in many fields, but there are few in the market. Some people apply many advantages of dielectric resonator antennas to emerging conformal devices, and their design methods are also very immature. The lack of tuning theory directly leads to insufficient freedom in the design of such antennas, and it is difficult to achieve free control of frequency and bandwidth.

Common dielectric resonator antennas are often tuned using metal structures based on the mirror image principle and perturbation method or coupling theory. This method re-introduces metal structures into the dielectric antenna, which has certain ohmic losses and is not suitable for high frequencies.

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