Dual polarization dipole array antenna

• US 5,321,414 A
• Filed: 08/20/1993
• Issued: 06/14/1994
• Est. Priority Date: 03/01/1990
• Status: Expired due to Fees

• Current Assignee: Her Majesty The Queen In Right of Canada As Represented By The Minister of National Defence
• Original Assignee: Her Majesty The Queen In Right of Canada As Represented By The Minister of National Defence
• Inventors: Ohno, Tom T., Alden, Adrian W.
• Primary Examiner(s): Hajec, Donald
• Assistant Examiner(s): Ho, Tan
• Application Number:
  US08/109,979
• Time in Patent Office: 298 Days
• Field of Search: 343/816, 343/754, 343/795, 343/802, 343/812, 343/813, 343/814, 343/815, 343/825, 343/826, 343/827, 343/700 MS
• US Class Current: 343/816
• CPC Class Codes: H01Q 1/248 provided with an AC/DC converting device, e.g. rectennas
• CPC Class Codes: H01Q 21/062 using dipole aerials; H01Q21/067, H01Q21/068 take precedence

Abstract

A dual polarized dipole array antenna for high efficiency power reception or transmission of electromagnetic waves comprises an array of dipole antenna elements and connecting transmission lines, all highly symmetrically arranged each other on a dielectric layer. Rectifiers and wave filters are added to the transmission lines to produce rectified outputs of each dipole antenna element.

Claims

1. A dual polarization dipole array antenna for power reception or transmission of electromagnetic waves, comprising:

a plurality of substantially identical antenna units arranged reflection symmetrically in an array in two directions,

each of the said antenna units comprising a dipole element having two feedlines symmetrically attached to the dipole element, said feedlines extend in said two directions, each of said feedlines having substantially identical wave filters, and a terminal for an antenna feed or load,

a dielectric layer, on one side of which the said plurality of identical antenna units are arranged symmetrically in said array by dc connecting appropriate ones of said feedlines of adjacent antenna units, and

a reflector plane on the other side of the said dielectric layer and located at a predetermined distance from the antenna units.

2. The dual polarization dipole antenna according to claim 1 wherein said plurality of identical antenna units are arranged symmetrically in a square array in said two directions.

3. The dual polarization dipole array antenna according to claim 2, wherein each antenna unit has its dipole element contiguous with the dipole element of the adjacent antenna unit in said directions.

4. The dual polarization dipole array antenna according to claim 2 wherein said predetermined distance between the reflector plane and said antenna units is adjustable to compensate the effect of antenna reactance and the feedlines for optimum reception or transmission.

5. The dual polarization dipole array antenna according to claim 3 wherein said dielectric layer and reflector are curved.