US 8,493,279 B2Granted

Antenna feed system

AssigneeUbiquiti Networks, Inc.

InventorsRobert J. Pera, John R. Sanford

Life of this patent

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Abstract

A microwave system comprises an antenna, antenna feed, a radio transceiver, and appropriate cabling among the aforementioned. Cost, performance and reliability improvements are achieved with further integration of these elements and with design improvements in the antenna feed. One improvement is the integration of the radio transceiver with the antenna feed. This improvement has many benefits including the to elimination of RF cables and connectors. Another improvement is the incorporation of parasitic radiators and sub-reflectors as part to of the antenna feed. The entire antenna, including the feed design is optimized with 3D finite element method (FEM) software and numerical optimization software. Another improvement is the utilization of the digital cable to power the integrated radio transceiver and a center fed parabolic reflector.

Claims10

Dependent claims

A device comprising:

a center fed substantially parabolic reflector;
a circuit board;
at least one substantially cylindrical feed pin radially disposed on said circuit board, said feed pin extending substantially perpendicular to the plane of the circuit board;
at least one substantially cylindrical director disposed radially on said circuit board, said director positioned a first distance and along a first direction from said feed pin, said director extending substantially perpendicular to the plane of the circuit board;
a radio transceiver disposed on the circuit board along the first direction, said radio transceiver coupled to the feed pin though a trace on the circuit board;
at least one sub-reflector disposed opposite the first direction at a second distance from the feed pin, said sub-reflector forming a substantially concave surface focused towards the first direction
wherein the circuit board is physically integrated within a feed mechanism of the center fed parabolic reflector.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/477,986Filed 4 Jun 2009
Published: US 2010/0309085 A19 Dec 2010
Granted: 23 Jul 2013
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

H01Q 19/193
Comprising one main concave reflecting surface associated with an auxiliary reflecting surface: with feed supported subreflector
H01Q 1/2291
By structural association with other equipment or articles: used in Bluetooth® or Wi-Fi® devices of Wireless Local Area Networks [WLAN]
H01Q 9/16
Resonant antennas: with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
H01Q 19/191
Comprising one main concave reflecting surface associated with an auxiliary reflecting surface: wherein the primary active element uses one or…