High gain integrated antenna based on high order cavity resonant mode

Abstract

The invention relates to a high gain integrated antenna based on a high order cavity resonant mode. A backed cavity of the traditional antenna consists of a smooth metal cavity, and has a large volume and high processing cost. The high gain integrated antenna based on the high order cavity resonant mode comprises a dielectric substrate, an upper metal layer which is coated on the upper surface of the dielectric substrate, and a lower metal layer which is coated on the lower surface of the dielectric substrate. A plurality of electric interconnection units which pass through the upper metal layer, the dielectric substrate and the lower metal layer are arranged in sequence to form an electric interconnection array; an area which is surrounded by the upper metal layer, the lower metal layer and the electric interconnection array forms a cavity body, and a feed unit stretches into the cavity body; the plurality of electric interconnection units which pass through the upper metal layer, the dielectric substrate and the lower metal layer inside the cavity body form a plurality of tuning electric interconnection groups; and a plurality of parallel radiating gaps are formed on the upper metal layer inside the cavity body. The volume of the cavity backed antenna is greatly reduced; manufacturing cost is reduced remarkably; and seamless integration between the high gain integrated antenna based on the high order cavity resonant mode and a planar circuit can be realized.

Description

technical field [0001] The invention belongs to the field of microwave technology, and relates to a high-gain integrated antenna based on a high-order cavity resonance mode, which can be used as an antenna for a radio frequency transceiver front end, and is widely used in wireless communication systems such as mobile communication, satellite communication, and radar, and is especially suitable for receiving Applications where the signal is weak and a high-gain antenna is required. Background technique [0002] As a key component of a communication system, antennas are widely used in wireless communication occasions. The performance of the antenna directly determines the performance of the entire system. A high-performance antenna can not only significantly improve the performance of the system and obtain a good reception effect, but also greatly relieve the index pressure of the subsequent RF circuit and reduce the cost of the system. Especially in space applications such ...

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Problems solved by technology

However, the traditional back cavity is composed of a smooth metal cavity, which is large in size and high in processing costs.

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