Low-profile microstrip antenna

• Main Authors: SONG CHANGHONG, MEI LIRONG, NIU MAOGANG
• Format: Patent
• Language: Chinese; English
• Published: 05.01.2021
• Subjects: ANTENNAS, i.e. RADIO AERIALS; BASIC ELECTRIC ELEMENTS; ELECTRICITY

The utility model discloses a low-profile microstrip antenna, and belongs to the technical field of antennas. The antenna comprises a micro-strip patch layer, a coupling slot layer and a back cavity layer, the micro-strip patch layer and the coupling slot layer adopt a multi-layer printed board processing technology, integrated design of a close fit structure between layers is achieved, the back cavity layer is located under an antenna radiator, and the effects of resonance reflection of signals and impedance bandwidth broadening can be achieved. The circularly polarized antenna has a circularly polarized radiation function, and can meet strict technical requirements of a digital multi-beam antenna on a radiation unit; and the structure is compact and simple, and the electric size is small. 本实用新型公开了一种低轮廓微带天线，属于天线技术领域。该天线包括微带贴片层、耦合缝隙层和背腔层，其中微带贴片层、耦合缝隙层采用多层印制板加工工艺，实现层与层之间紧密贴合结构一体化设计，背腔层在天线辐射体的正下方，可完成信号的谐振反射，展宽阻抗带宽作用。本实用新型具有圆极化辐射功能，可满足数字多波束天线对辐射单元的苛刻的技术要求；并且结构紧凑，简单，电尺寸小。