Q-band superspeed wireless local area network indoor access antenna

Abstract

The invention discloses a Q-band superspeed wireless local area network indoor access antenna which comprises a radiating element and a feeder line part. The radiating element and the feeder line part are printed on a same medium substrate through the printed circuit technology. The radiating element is formed by printed umbrella-shaped symmetrical dipoles and a printed guide unit, the substrate is used for integrating a waveguide to achieve differential feed, an inductive window structure is loaded to achieve broadband impedance matching, and mutual connection with an external circuit can be achieved through the antenna mode by adopting a coplanar waveguide changeover structure or a substrate integrated waveguide changeover structure. Considering the requirements of the new generation Q-band superspeed wireless local area network standard and the related millimeter wave indoor communication system standard 802.11aj (45GHz), the access antenna which is provided with a wide working band (42.4-48.5 GHz), and wide beam coverage larger than or equal to 120 degrees in a main tangent plane and is capable of being integrated with a plane active millimeter wave circuit is achieved through the printed circuit technology.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, in particular to a Q-band ultra-high-speed wireless local area network indoor access antenna. Background technique [0002] The millimeter wave frequency band has the characteristics of abundant available spectrum resources and high data transmission rate. It has been widely concerned by the industry and has begun to develop related ultra-high-speed communication systems. According to the frequency planning of the Ministry of Industry and Information Technology of my country, the 42.4-48.4GHz spectrum resources in the Q-band have been designated as ultra-high-speed wireless LAN services and announced at the end of 2013. The communication standardization work related to this frequency spectrum is being carried out extensively. Among them, the 802.11aj (45GHz) standard working group was established in 2012 with the permission of the International Institute of Electrical and Electroni...

AI Technical Summary

Problems solved by technology

However, in the millimeter wave frequency band, microstrip lines and coplanar waveguides have large metal loss and radiation loss. These losses not only deteriorate the performance of the system, but the radiation loss will also affect the radiation performance of the antenna.

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