A phased array antenna with reconfigurable pattern

Abstract

The invention discloses a phased array antenna with reconfigurable direction diagram. The phased array antenna is composed of four antenna units arranged side by side at intervals, and each antenna unit has the same structure; the radiation unit of the antenna unit is two with rectangular gaps. There are resonators directly below and directly above the radiation unit, which can increase the front-to-back ratio and directivity of the antenna; the on-off of the ground plane is controlled by two PIN diode switches, so that the antenna has two different The working mode can realize the reconfigurable function of the pattern; the phased array antenna has a simple structure and good working performance, and realizes multiple working modes on the same phased array antenna, and each working mode can realize planar Scanning with an angle range of ±58° can meet the needs of complex application scenarios.

Description

technical field

[0001] The invention belongs to the technical field of wireless communication, in particular to a phased array antenna with a reconfigurable pattern. Background technique

[0002] Phased array antenna is one of the key technologies in wireless and communication systems, and has attracted the attention of many researchers due to its beam scanning and high gain characteristics. As we all know, the scanning range of a phased array antenna is limited by factors such as the mutual coupling effect of array elements, pattern and impedance matching, so the scanning range of a traditional planar phased array antenna is usually within ±60°. However, the phased array antennas in the prior art can only achieve effective scanning in a single mode. For complex application scenarios that require multi-mode effective scanning, this is an urgent problem that needs to be solved in the field of wireless communication technology.

[0003] For example, in the paper "Wideband Pla...

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