Half-wave Transmission Decoupling Microstrip Array Antenna with Small Pitch

Abstract

A half-wave transmission decoupling small-pitch microstrip array antenna in the field of wireless communication technology, comprising: a dielectric plate, two radiation array units, a half-wave transmission microstrip decoupling unit, a ground plate and two feed elements, wherein: The two radiation array units and the half-wave transmission microstrip decoupling unit are attached to one side of the dielectric board, and the ground plane is arranged on the other side of the dielectric board. The first radiation array unit and the second radiation array unit are respectively connected to the first The feed element is connected to the second feed element, the half-wave transmission microstrip decoupling unit is respectively connected to two radiation array units, both the feed elements are connected to the ground plate, and the two radiation array units form a dual antenna array structure. The invention uses a traditional microstrip line as a decoupling unit, which is easy to conform, has a simple structure, can better improve coupling, and has high isolation.

Description

technical field [0001] The invention relates to a device in the technical field of wireless communication, in particular to a half-wave transmission decoupling small-pitch microstrip array antenna. Background technique [0002] With the rapid development of electronic technology, people put forward higher requirements for the miniaturization and communication speed of radar, positioning, and high-speed communication. The high-speed requirements and positioning of electronic and communication systems require that the transmitting end and the receiving end use multiple antennas to work independently, which can double the capacity of the communication system and the utilization rate of spectrum without increasing the bandwidth. At the same time, different antennas can be used Receiving the same signal to realize the special application of space electronic warfare is a research focus of the next generation electronic warfare system. However, whether it is an electronic system o...

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Problems solved by technology

[0003] After searching the existing technical literature, it is found that the patent application number: CN200810064729.X, the patent publication number: CN101316008A, the invention patent name is: MIMO (Multiple-Input Multiple-Output, multiple input multiple output) with high isolation and low correlation characteristics ) mobile terminal multi-antenna, the main body of the antenna is a double-layer dielectric structure, the patch antenna is located on the upper surface of the upper medium, and the lower surface is the lower floor. By setting the dumbbell-shaped opening in the lower floor, the distance between the patches can be significantly improved. Isolation, however openings in the floor will cause back radiation and the shielding of the antenna will be affected

Patent application number CN200480008890.5, patent publication number: CN1768448A, invention patent name: phased array antenna and inter-unit mutual coupling control method, the antenna is provided with a dielectric separator in the path of mutual coupling signals between antenna units, which can effectively However, this method is at the cost of increasing the antenna volume

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