Wideband circular polarization high gain combined antenna

Abstract

The invention provides a wideband circular polarization high gain combined antenna. The combined antenna comprises a micro-strip antenna and a pyramid horn antenna, wherein the micro-strip antenna comprises an upper layer dielectric substrate, a lower layer dielectric substrate and support foam, wherein a circular structure is sculptured on the center of the upper surface of the lower layer dielectric substrate, two symmetrical cutting angles along a circle diameter direction are arranged on the external circle of the circular structure, four central symmetry circle radiation pasting slices with equal sizes are evenly sculptured on the lower surface of the upper layer dielectric substrate, the lower surface of the upper layer dielectric substrate is installed on the upper surface of the lower layer dielectric substrate through the rigid support foam, centers of the circle radiation pasting slices with cutting angles are aligned with the symmetric center of the circle radiation pasting slices, the pyramid horn antenna is in a taper frame structure, and an open end of the pyramid horn antenna, with a small opening diameter, is installed on the upper surface of the lower layer dielectric substrate, and furthermore the upper layer dielectric substrate is surrounded inside the pyramid horn antenna. The wideband circular polarization high gain combined antenna can simultaneously guarantee good impedance, circular polarization and high gain radiation properties in a wide frequency band.

Description

Technical field [0001] The invention relates to an antenna, in particular to a broadband circular polarization high-gain combined antenna, belonging to the technical field of antennas. Background technique [0002] Microstrip antennas have the advantages of low profile, small size, light weight, easy conformal with application platforms, easy integration, etc., so they are widely used in many application fields. With the development of modern communication technology, many systems often require the characteristics of broadband, high gain and circular polarization operation. However, the traditional circularly polarized microstrip antenna structure has narrow bandwidth and low gain, which makes it difficult to meet the expected requirements of the aforementioned system. If other forms of antennas, such as commonly used helical antennas, are used, it is difficult to simultaneously meet the requirements of broadband and high Gain and circular polarization requirements. Summary of ...

AI Technical Summary

Problems solved by technology

However, the narrow bandwidth and low gain of the traditional circularly polarized microstrip antenna structure make it difficult to meet the expected requirements of the aforementioned system, and if other forms of antennas, such as commonly used helical antennas, are used, it is also difficult to meet both broadband and high Gain and circular polarization requirements

Images