DUAL BAND, MULTI COLUMN ANTENNA ARRAY FOR WIRELESS NETWORK

• US 20170062952A1
• Filed: 09/02/2015
• Published: 03/02/2017
• Est. Priority Date: 09/02/2015
• Status: Abandoned Application

• Current Assignee: Ace Antenna Company Inc.
• Original Assignee: Ace Antenna Company Inc.
• Inventors: Sundararajan, Niranjan, Kozak, Charlie, Le, Kevin, Teillet, Anthony
• Application Number:
  US14/827,119
• Publication Number:
  US 20170062952A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H01Q 1/246 specially adapted for base stations
• CPC Class Codes: H01Q 1/523 between antennas of an array
• CPC Class Codes: H01Q 19/108 Combination of a dipole with a plane reflecting surface H01Q19/106 takes precedence; strip line H01Q9/065
• CPC Class Codes: H01Q 21/065 Patch antenna array
• CPC Class Codes: H01Q 21/26 Turnstile or like antennas comprising arrangements of three or more elongated elements disposed radially and symmetrically in a horizontal plane about a common centre

Abstract

A dual-band, dual-polarized antenna module for a mobile communication base station, which includes: a reflector plate; a radiation antenna module for transmitting and receiving two linear orthogonal polarizations in first and second frequency band, the radiation antenna module generally having a first set of radiation antenna elements operable in a first frequency band including a plurality of dipoles arranged to form generally rectangular shape, each of the dipoles substantially having a planar shape element with a convex cavity; and a second set of radiation elements operable in a second frequency band which are proximately arranged over a convex cavities in the first set of radiation antenna elements, and includes a plurality of aperture coupled patch elements generally arranged to form a quad-shape.

Claims

1. A dual-band dual-polarized antenna module arrangement for receiving and transmitting electromagnetic signals in at least two spaced-apart frequency bands including a first frequency band (FL) and a second frequency band (FH), comprising:

a reflector plate (10);

a first (71a, b) and second (70a, b) set of planar antenna elements spaced apart from the reflector plate, being arranged at +45 and −

45 degree axis relative to a symmetry axis (12, 14), respectively, the first and second set of planar antenna elements being operative for transmitting and receiving linear orthogonal polarizations in the first frequency band (FL) and generally forming a four quadrant arrangement; and

a third set of four antenna elements (80a-d) operative for transmitting and receiving two linear orthogonal polarizations in the second frequency band (FH) co-planarily proximate to the first and second set of planar antenna elements, and arranged within a four quadrant arrangement of the first and second planar antenna elements, wherein the first (71a, b) and second (70a, b) set of planar antenna elements and the third set of four antenna elements (80a-d) together produce a predetermined beamwidth in the second frequency band (FH).

2. The dual-band dual-polarized antenna module arrangement for receiving and transmitting electromagnetic signals as claimed in claim 1, wherein the first (71a, b) and second (70a, b) set of planar antenna elements form planar dipoles (70, 71) forming respective feed points at a vertex proximate to an intersection of the +45 degree axis, the −

45 degree axis and the symmetry axis (12, 14).

3. The dual-band dual-polarized antenna module arrangement for receiving and transmitting electromagnetic signals as claimed in claim 1, wherein the first (71a, b) and second (70a, b) set of planar antenna elements have a convex cavity (73a, 72a, 73b, 72b), and having a first subset (80a, d) of high-band antenna elements being arranged along a first offset column (12a, 14a) and a first offset row 18a, and a second subset (80b, c) of high-band antenna elements being arranged along a second offset column (12b, 14b) and second offset row 18b, positioned within the four quadrant arrangement of the first and second planar antenna elements (70a, b;

71a, b).

4. The dual-band dual-polarized antenna module arrangement for receiving and transmitting electromagnetic signals as claimed in claim 1, wherein the first (71a, b) and second (70a, b) set of planar antenna elements are adapted for the frequency range of 698 to 960MHz.

5. The dual-band dual-polarized antenna module arrangement for receiving and transmitting electromagnetic signals as claimed in claim 1, wherein the third set of four antenna elements (80a-d) are adapted for the frequency range of 1710 to 2690 MHz.

6. The dual-band dual-polarized antenna module arrangement for receiving and transmitting electromagnetic signals as claimed in claim 1, wherein the first (71a, b) and second (70a, b) set of planar antenna elements are operative in the first frequency band with a bandwidth greater than 24% and a horizontal beamwidth in the range 50 to 38 deg.

7. The dual-band dual-polarized antenna module arrangement for receiving and transmitting electromagnetic signals as claimed in claim 1, wherein the third set of four antenna elements (80a-d) are operative in the second frequency band with a bandwidth greater than 34% and a horizontal beamwidth in the range 37 to 47 deg.

8. The dual-band dual-polarized antenna module arrangement for receiving and transmitting electromagnetic signals as claimed in claim 6, wherein elevation beamwidths of the two orthogonal polarizations of the first and second set of planar antenna elements are in the range of 29 degrees to 37 degrees.

9. The dual-band dual-polarized antenna module arrangement for receiving and transmitting electromagnetic signals as claimed in claim 7, wherein elevation beamwidths of the third set of four antenna elements are in the range of 10 degrees to 15 degrees.

10. The dual-band dual-polarized antenna module arrangement for receiving and transmitting electromagnetic signals as claimed in claim 1, wherein the third set of four antenna elements (80a-d) comprises multiple groups of the four antenna elements, one said group of the four antenna elements being disposed over each quadrant of the first and second planar antenna elements.

11. The dual-band dual-polarized antenna module arrangement for receiving and transmitting electromagnetic signals as claimed in claim 1, wherein the third set of four planar antenna elements comprise a quadrature of microstrip aperture coupled, cross polarized patch antenna elements positioned within a perimeter defined by the first and second set of planar antennal elements.

12. The dual-band dual-polarized antenna module arrangement for receiving and transmitting electromagnetic signals as claimed in claim 11, comprising antenna element feeds coupled between the third set of four planar antenna elements and a transceiver front end configured to provide 4×

4 multiple input multiple output (MIMO) operation.