Transparent polarization and bandwidth reconfigurable filtering liquid dielectric resonator antenna

Abstract

The invention discloses a filtering liquid dielectric resonator antenna with transparent polarization and reconfigurable bandwidth. The filtering liquid dielectric resonator antenna comprises a metal floor, a dielectric substrate, an intermediate dielectric container, a parasitic dielectric container, a micro-strip feeder line, a vertical metal branch knot and two micro-strip branch knots with different lengths, the main radiation unit is an intermediate medium container. The middle medium container is divided into three different areas, and left-hand circular polarization and linear polarization are realized by injecting the liquid medium into different medium containers; two radiation zero points are obtained on two sides of the passband through the two microstrip branches with different lengths; liquid is injected into different areas of the intermediate container, so that polarization reconfiguration of the antenna is realized; liquid is injected into different parasitic containers, so that the axial ratio bandwidth is adjusted, and the circular polarization axial ratio bandwidth is effectively widened. Therefore, the characteristics of the liquid are fully utilized, and better polarization and bandwidth reconstruction functions and stable filtering response are realized under the condition of no other active devices.

Description

technical field [0001] The invention belongs to the technical field of liquid antennas, in particular to a filter dielectric resonator antenna made of ethyl acetate with reconfigurable polarization and bandwidth. Background technique [0002] In the past few decades, wireless communication technology has made great progress, which has had a significant impact on people's daily life. Miniaturization, low cost, wide frequency band, and multi-function have become the main trends in the design of wireless communication systems. Traditional metal antennas are often difficult to meet multiple performance requirements at the same time, and their shortcomings are gradually becoming apparent. [0003] Compared with solid materials, liquid materials have their unique characteristics, such as: a) when the antenna is not working, the liquid can be discharged, so that the radar cross section (RCS) is small; b) transparency, with good concealment effect; c) fluidity , Plasticity, can ch...

AI Technical Summary

Problems solved by technology

[0006] To sum up, it can be seen that to overcome the disadvantages of poor reconfigurability and concealment of existing solid antennas, and to realize transparent reconfigurable liquid antennas by using the transparency and fluidity of liquids is the focus of current research on new liquid material antennas.

Images