Plane horn antenna capable of achieving gap embedding phase calibration

• Main Authors: ZHAO HONGXIN, YIN XIAOXING, ZHANG QINGZHUO
• Format: Patent
• Language: English
• Published: 17.06.2015
• Subjects: ANTENNAS, i.e. RADIO AERIALS; BASIC ELECTRIC ELEMENTS; ELECTRICITY

The invention relates to a horn antenna, in particular to a plane horn antenna capable of achieving gap embedding phase calibration. The antenna comprises a micro-strip feeder line (1), a substrate integrated waveguide horn antenna body (2) and gaps (3), wherein the micro-strip feeder line (1), the substrate integrated waveguide horn antenna body (2) and the gaps (3) are integrated on a dielectric substrate (4). The horn antenna body (2) is composed of a first metal plane (8), a second metal plane (10) and two rows of metallization via hole horn side walls (11), the gaps are formed in the first metal plane (8) and the second metal plane (10) in the substrate integrated waveguide horn antenna body (2), one end of each gap (3) is in the substrate integrated waveguide horn antenna body (2), the other end of each gap (3) is close to but not reach an antenna aperture face (13), and a plurality of sub-horns (12) are formed in the substrate integrated waveguide horn antenna body (2) through the gaps (3). The gain of the antenna can be improved.