Pattern shaping of RF emission patterns

• US 10,056,693 B2
• Filed: 02/22/2016
• Issued: 08/21/2018
• Est. Priority Date: 01/21/2005
• Status: Active Grant

• Current Assignee: Ruckus IP Holdings LLC
• Original Assignee: Ruckus Wireless, Inc. (CommScope Holding Company, Inc.)
• Inventors: Shtrom, Victor
• Primary Examiner(s): Mancuso, Huedung
• Application Number:
  US15/050,233
• Publication Number:
  US 20160248160A1
• Time in Patent Office: 911 Days
• Field of Search: 343700 MS, 343702, 343767, 343770-771, 343876, 343833
• CPC Class Codes: H01Q 1/241 used in mobile communications, e.g. GSM H01Q1/247, H01Q1/248 take precedence
• CPC Class Codes: H01Q 1/243 with built-in antennas
• CPC Class Codes: H01Q 1/38 formed by a conductive layer on an insulating support patch antennas H01Q9/0407; microstrip dipole antennas H01Q9/065; microstrip slot antennas H01Q13/106; transmission line microstrip antennas H01Q13/206; manufacturing reflecting surfaces using insulating material for supporting the reflecting surface H01Q15/142
• CPC Class Codes: H01Q 1/42 Housings not intimately mechanically associated with radiating elements, e.g. radome
• CPC Class Codes: H01Q 19/00 Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic combination of horns with slotted waveguide array H01Q13/0233
• CPC Class Codes: H01Q 19/021 Means for reducing undesirable effects
• 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
• 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: H01Q 9/285 Planar dipole H01Q9/065 takes precedence; patch antenna H01Q9/0407

Abstract

A metallic shaping plate located in the interior housing of a wireless device is disclosed. The metallic shaping plate may influence a radiation pattern being generated by a horizontal antenna array. The result may be an increase in the gain of the array.

Claims

1. An antenna system comprising:

a plurality of antenna elements for selective coupling to a radio frequency feed port;

a housing enclosing the plurality of antenna elements;

a ground component associated with one of the plurality of antenna elements, wherein a portion of the ground component is shaped to form a modified dipole in conjunction with the antenna element; and

one or more loading structures configured to slow down electrons to changing a resonance of the modified dipole and to minimize the size of the antenna system.

2. The antenna system of claim 1, wherein at least two of the plurality of antenna elements generate an omnidirectional radiation pattern having less directionality than a directional radiation pattern of a single antenna element when selectively coupled to the radio frequency feed port.

3. The antenna system of claim 1, further comprising a substrate including the plurality of antenna elements.

4. The antenna system of claim 1, wherein the plurality of antenna elements are located on a first side of the substrate.

5. The antenna system of claim 2, further comprising a shaping element coupled to the antenna system for changing the omnidirectional radiation pattern.

6. The antenna system of claim 1, wherein two or more of the plurality of antenna elements are configured to transmit and receive horizontal polarization.

7. The antenna system of claim 1, wherein two or more of the plurality of antenna elements are configured to transmit and receive vertical polarization.

8. The antenna system of claim 1, wherein the plurality of antenna elements includes a first set of antenna elements arranged in a first plane, and a second set of antenna elements arranged perpendicular to the first plane.

9. The antenna system of claim 8, wherein the first set of antenna elements generates a first radiation pattern having a polarization substantially in the first plane, and the second set of antenna elements generates a second radiation pattern having a polarization substantially perpendicular to the first plane.

10. The antenna system of claim 9, wherein at least one of the loading structures is arranged in a third plane parallel to the first plane.

11. The antenna system of claim 1, wherein at least one of the loading structures has a layout corresponding to an arrangement of antenna elements from the plurality of antenna elements.

12. The antenna system of claim 1, wherein at least one of the loading structures includes a first portion located a first distance from the antenna array, and a second portion located a second distance from the antenna array, and wherein the second distance of the second portion is greater than the first distance of the first portion.