Full wave dipole array having improved squint performance

Patent metadata

Field	Value
Publication number	US-2016248170-A1
Application number	US-201514814088-A
Country	US
Kind code	A1
Filing date	Jul 30, 2015
Priority date	Feb 25, 2015
Publication date	Aug 25, 2016
Grant date	—

Abstract

A cellular base station antenna having improves squint performance is provided. The antenna includes a ground plane, a first plurality of radiating elements supported over the ground plane by microstrip support PCBs, and a second plurality of radiating elements supported over the ground plane by stripline support PCBs. The first and second pluralities of radiating elements are arranged in at least one array of low band radiating elements, and the quantities of first and second pluralities of radiating elements are selected to reduce squint of a beam produced by the at least one array. The first plurality of radiating elements may be located below the second plurality of radiating elements in the array. The array may be arranged in a linear column or a staggered column. In one example, the first plurality of radiating elements comprises four radiating elements and the second plurality radiating elements comprises two radiating elements.

First claim

What is claimed is:

1 . A cellular base station antenna comprising:
a. a ground plane; b. a first plurality of radiating elements supported over the ground plane by microstrip support PCBs; and c. a second plurality of radiating elements supported over the ground plane by stripline support PCBs; wherein the first and second pluralities of radiating elements are arranged in at least one array of low band radiating elements.

2 . The cellular base station antenna of claim 1 , wherein the first plurality of radiating elements is located below the second plurality of radiating elements.

3 . The cellular base station antenna of claim 2 , wherein the first plurality of radiating elements comprises four radiating elements and the second plurality radiating elements comprises two radiating elements.

4 . The cellular base station antenna of claim 1 , wherein the first and second pluralities of radiating elements comprise full wave cross dipole radiating elements.

5 . The cellular base station antenna of claim 1 , wherein the first and second pluralities of radiating elements comprise low band radiating elements, the cellular base station antenna further comprising at least one array of high band radiating elements.

6 . The cellular base station antenna of claim 1 , further comprising:
a. a third plurality of radiating elements supported over the ground plane by microstrip support PCBs; and b. a fourth plurality of radiating elements supported over the ground plane by stripline support PCBs; wherein the third and fourth pluralities of radiating elements are arranged in a second array of radiating elements.

7 . The cellular base station antenna of claim 1 , wherein the quantities of first and second pluralities of radiating elements are selected to reduce squint of a beam produced by the at least one array.

8 . A cellular base station antenna comprising:
a. a ground plane; b. a first plurality of low band full wave dipole radiating elements supported over the ground plane by microstrip support PCBs; c. a second plurality of low band full wave dipole radiating elements supported over the ground plane by stripline support PCBs; and d. at least one array of high band radiating elements; wherein the first and second pluralities of radiating elements are arranged in at least one array of low band radiating elements.

9 . The cellular base station antenna of claim 8 , wherein the first plurality of radiating elements is located below the second plurality of radiating elements.

10 . The cellular base station antenna of claim 8 , wherein the microstrip support PCBs each comprise a hook balun, a feed stalk, an inductive section, and a capacitive section.

11 . The cellular base station antenna of claim 8 , wherein the stripline support PCBs each comprise a hook balun, at least two feed stalks sandwiching the hook balun, an inductive section, and a capacitive section.

Assignees

• Commscope Technologies Llc

Inventors

• Bisiules Peter J
• Shooshtari Alireza

Classifications

• H01Q5/42

  using two or more imbricated arrays (H01Q5/49 takes precedence) · CPC title

• H01Q1/246

  specially adapted for base stations · CPC title

• H01Q21/24

  Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction {(circularly polarised patch antennas H01Q9/0428; circularly polarised horns H01Q13/0241; cross-polarised horns H01Q13/0258; polarisation converters H01Q15/242; cross-polarised rear feeds H01Q19/136; crossed polarisation dual antenna H01Q25/001)} · CPC title

• H01Q21/08 Primary

  the units being spaced along or adjacent to a rectilinear path {(waveguide fed H01Q21/0037)} · CPC title

• H01Q9/16

  with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole (H01Q9/44 takes precedence) · CPC title