Wireless data card antenna supporting mimo technology

Abstract

The invention discloses a wireless data card antenna supporting MIMO technology. Coplanar waveguide upper metal floors and coplanar waveguide lower metal floors made of copper-platinum plates are respectively compounded on the upper and lower sides of a double-sided copper-clad microwave dielectric substrate. , there are two parallel coplanar waveguide feeders on the same plane of the metal floor on the coplanar waveguide, and outside the ends of the two waveguide feeder lines, there are radiation patches coupled with their slots to form two antennas, and the two upper radiation patches have short-circuit pins respectively It is connected to the connecting wire of the metal floor under the coplanar waveguide; the end of the connecting wire connected to the metal floor under the coplanar waveguide and the short-circuit pin is surrounded by multiple turns. By increasing or decreasing the number of turns around the connecting wire, the inductance of the regulator can be adjusted to adjust the work of the antenna. frequency. The invention has the advantages of reducing the geometric size of a single antenna, improving the isolation between multiple antennas; expanding the frequency bandwidth of the antenna; reducing the operating frequency of the antenna; easy to implement common or embedded design, and low manufacturing cost .

Description

technical field [0001] The invention relates to a wireless data card antenna, in particular to a wireless data card antenna supporting MIMO technology. Background technique [0002] The future wireless network will be a converged network integrating IP, broadband, mobile and multimedia. As the latest broadband wireless access technology, WiMAX based on IEEE 802.16 series standards has the characteristics of IP, mobility, broadband and multi-service support, and represents the future development direction of high-speed mobile Internet. Therefore, the current construction of wireless cities around the world basically adopts the wireless mesh network technology of WiFi+WiMax, which is also the most basic technology of wireless networks. In the future, this technology will not be replaced by new wireless technologies. The main advantages of this new technology of WIMAX are reflected in the following aspects: [0003] First, WiMAX has a fast network construction speed and l...

AI Technical Summary

Problems solved by technology

In order to ensure the isolation between the two antennas, there are mainly two layout methods currently used. One is that the circuit part of the data card is separated from the antenna, and the external antenna is connected to the circuit board through a long coaxial cable. In this case, the data card In fact, it is a kind of integrated design with a notebook computer; and for a detachable data card, the arrangement of two antennas is often one on the top and one on the side, which greatly restricts the miniaturization of the wireless data card and becomes The main bottleneck of the development of wireless data card "U" disk

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