Circular polarization microstrip patch antenna with parasitic resonance ring

• Main Authors: XU HENGFEI, ZHAO TIANRUN
• Format: Patent
• Language: Chinese; English
• Published: 29.12.2020
• Subjects: ANTENNAS, i.e. RADIO AERIALS; BASIC ELECTRIC ELEMENTS; ELECTRICITY

The utility model relates to a circularly polarized microstrip patch antenna with a parasitic resonance ring. The circularly polarized microstrip patch antenna comprises a conductive grounding plane,a dielectric substrate arranged on the conductive grounding plane, a radiation sheet arranged at the top of the dielectric substrate and a feed probe arranged below the dielectric substrate, the radiation sheet comprises a central basic radiation sheet and resonance radiation sheets arranged around the central basic radiation sheet. Wherein the central basic radiation sheet is a sheet-shaped square metal conductor, a rectangular opening is formed in the middle of the central radiation sheet, and a long-side center line and a short-side center line of the rectangular opening are respectively positioned on two diagonal lines of the square metal conductor; according to the utility model, a coaxial feed mode is adopted, the power capacity is large, the feed impedance is easy to select and control, a relatively wide ba