Multi-polarization microstrip patch antenna loading zero-order resonator

Abstract

The invention provides a multi-polarization microstrip patch antenna loading a zero-order resonator. The antenna comprises an upper-layer microstrip structure, a middle medium base plate and a bottom-layer metal floor, wherein the upper-layer microstrip structure is arranged on one surface of the middle medium base plate and comprises a microstrip transmission line, a coupling feed part and an antenna main body; the microstrip transmission line is vertically connected with the coupling feed part; the antenna main body and the microstrip transmission line are arranged at the two sides of the coupling feed part respectively; a gap is reserved between the antenna main body and the coupling feed part; the antenna main body consists of two microstrip patch parts and a zero-order resonance part; and the zero-order resonance part is arranged between the two microstrip patch parts and consists of an upper-layer microstrip patch and a grounding metal column vertically arranged between the upper-layer microstrip patch and the middle medium base plate. In the antenna provided by the invention, by combining the traditional microstrip patch antenna with a second-order mushroom type zero-order resonator, the shortcomings of respective polarization direction and radiation patterns of the traditional microstrip patch antenna and the second-order mushroom type zero-order resonator are overcome, so that good radiation characteristic is realized.

Description

technical field [0001] The invention relates to the technical field of miniaturized antennas in wireless communication, and more specifically, relates to a multi-polarization microstrip patch antenna loaded with a zero-order resonator. Background technique [0002] With the rapid development of mobile communication, antennas are used as transceiver devices of wireless communication equipment, and people put forward higher and higher requirements for their performance. Single-polarized antennas are often affected by the environment and antenna placement during use, so the receiving effect cannot be guaranteed. Therefore, people invented multi-polarized antennas to overcome the defects of single-polarized and ensure the quality of sending and receiving. Multi-polarized antennas are mostly combined antennas, which are formed by combining multiple single-polarized antennas with different polarization directions at the same frequency, such as patent CN102099963A. The size is lar...

AI Technical Summary

Problems solved by technology

Single-polarized antennas are often affected by the environment, antenna placement, etc. during use, so that the receiving effect cannot be guaranteed. Therefore, people invented multi-polarized antennas to overcome the defects of single-polarized and ensure the quality of transmission and reception.

Multi-polarized antennas are mostly combined antennas, which are formed by combining multiple single-polarized antennas with different polarization directions at the same frequency, such as patent CN102099963A. Large size and complex structure

[0003] The microstrip antenna has a light weight, small volume, and thin planar structure. It is easy to make a conformal antenna, low in manufacturing cost, and easy to mass produce. Therefore, it is widely used. The traditional patch antenna has a single polarization direction, which is the horizontal direction of the dielectric substrate. , the pattern is concentrated upwards, the lobe width is narrow, and the horizontal plane radiation is insufficient. On this basis, if a vertically polarized antenna with the same low-profile microstrip structure can be added, a low-profile and small-sized microstrip multi-polarization can be achieved. antenna

Images