Antenna feed system

• US 10,312,599 B2
• Filed: 05/25/2015
• Issued: 06/04/2019
• Est. Priority Date: 06/04/2009
• Status: Active Grant

• Current Assignee: Ubiquiti Inc.
• Original Assignee: Ubiquiti Networks, Inc. (Ubiquiti Inc.)
• Inventors: Pera, Robert J., Sanford, John R.
• Primary Examiner(s): Han, Jessica
• Assistant Examiner(s): Patel, Amal
• Application Number:
  US14/720,902
• Publication Number:
  US 20150255879A1
• Time in Patent Office: 1,471 Days
• CPC Class Codes: H01Q 1/2291 used in bluetooth or WI-FI devices of Wireless Local Area Networks [WLAN] H01Q1/241 takes precedence; WLAN in general H04W
• CPC Class Codes: H01Q 19/191 wherein the primary active element uses one or more deflecting surfaces, e.g. beam waveguide feeds
• CPC Class Codes: H01Q 19/193 with feed supported subreflector splash plate feeds H01Q19/134
• CPC Class Codes: H01Q 19/28 using a secondary device in the form of two or more substantially straight conductive elements log- periodic antennas H01Q11/10; constituting a reflecting surface H01Q19/10
• CPC Class Codes: H01Q 9/16 with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole H01Q9/44 takes precedence
• CPC Class Codes: H04B 1/38 Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
• CPC Class Codes: Y10T 29/4913 Assembling to base an electrical component, e.g., capacitor, etc.

Abstract

An improved microwave system. Certain embodiments include a radio transceiver, an antenna, an antenna feed mechanism, and the necessary RF cabling to connect these elements. In the present invention, an antenna feed system is described. The antenna feed system may comprise the radio transceiver, which is integrated with the antenna feed mechanism and the antenna conductors. In the exemplary embodiment, the antenna feed assembly further comprises connectivity for a digital signal interface; antenna feed pins, director pins and sub-reflectors. Typically, these elements are located on a printed circuit board and housed in weather proof housing which may be disposed on the feed arm of a parabolic reflectors. Some embodiments may support OSI layer digital communications.

Claims

1. A center fed parabolic microwave system comprising:

an antenna feed system coupled to a parabolic reflector;

the antenna feed system comprised of;

a printed circuit board positioned along an axis of symmetry of the parabolic reflector, with a distal portion of the printed circuit board positioned towards a focal point of the parabolic reflector, while a proximal portion of the printed circuit board positioned away from the focal point of the parabolic reflector;

a plurality of active antenna elements located at the distal portion of the printed circuit board and extending from the axis of symmetry of the parabolic reflector in opposite directions;

a radio transceiver located on the printed circuit board, wherein the radio transceiver is configured to receive a digital signal and generate a radio frequency (RF) signal, said RF signal is coupled to the plurality of active antenna elements; and

a sub-reflector having a concave surface, the sub-reflector positioned distal to the printed circuit board and on the axis of symmetry of the parabolic reflector,

wherein the sub-reflector is configured to reflect radiated energy generated by the plurality of active antenna elements back to the parabolic reflector, and the transceiver includes a client controller that supports OSI layers.