Directional diagram reconfigurable antenna based on switchable director

Abstract

The invention specifically relates to a directional diagram reconfigurable antenna based on a switchable director, and belongs to the technical field of antennas. The antenna comprises a substrate which comprises an upper layer and a lower layer which are composed of microwave dielectric substrates; a dielectric resonator which is adhered to the upper surface of the upper layer; a pair of symmetrical metal arms surrounding the outer side of the dielectric resonator and etched on the upper surface of the upper layer; a power divider etched on the lower surface of the lower layer; a pair of switchable directors which are arranged in the upper surface of the upper layer, surround the periphery of the dielectric resonator and are symmetrical, wherein the distance from the switchable director to the center of the dielectric resonator is greater than the distance from the metal arm to the center of the dielectric resonator; metal ground arranged between the upper layer and the lower layer of the substrate, wherein the vertical projection area of the metal ground on the substrate is larger than the vertical projection area of the dielectric resonator on the substrate; and metal through holes are formed in the surfaces of the upper layer and the lower layer of the substrate. The metal arms penetrate through the substrate from top to bottom through the metal through holes and are connected with the power divider; and the metal arms and the power divider form a feed structure of the antenna.

Description

technical field [0001] The invention specifically relates to a reconfigurable antenna with a pattern based on a switchable director, belonging to the technical field of antennas. Background technique [0002] In recent years, wireless communication technology has developed rapidly, and antenna, as a component used to transmit or receive radio waves, plays a pivotal role in wireless communication systems. At present, the important direction of wireless communication system development is large capacity, multi-function, and ultra-wideband. In order to meet this demand, the number of antennas mounted on the same platform will increase accordingly, and the increase in the number of antennas will inevitably lead to an increase in system cost, weight, and volume. , but also brought about electromagnetic compatibility issues. In order to overcome this constraint and make the performance of the entire communication system less constrained by the antenna, reconfigurable antennas eme...

AI Technical Summary

Problems solved by technology

At present, the important direction of wireless communication system development is large capacity, multi-function, and ultra-wideband. In order to meet this demand, the number of antennas mounted on the same platform will increase accordingly, and the increase in the number of antennas will inevitably lead to an increase in system cost, weight, and volume. , but also brings about the problem of electromagnetic compatibility

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