Multiband omnidirectional planar antenna apparatus with selectable elements

• US 7,652,632 B2
• Filed: 04/28/2006
• Issued: 01/26/2010
• Est. Priority Date: 08/18/2004
• Status: Active Grant

• Current Assignee: Ruckus IP Holdings LLC
• Original Assignee: Ruckus Wireless, Inc. (CommScope Holding Company, Inc.)
• Inventors: Shtrom, Victor
• Primary Examiner(s): Owens; Douglas W
• Assistant Examiner(s): TRAN, CHUC
• Application Number:
  US11/414,117
• Publication Number:
  US 20060192720A1
• Time in Patent Office: 1,369 Days
• Field of Search: 343/700.MS, 343/730, 343/745, 343/795, 343/810, 343/820, 343/797, 343/893, 343/822, 343/853
• US Class Current: 343/795
• 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 19/28 using a secondary device in the form of two or more substantially straight conductive elements log- periodic antennas H01Q11/10; constituting a reflecting surface H01Q19/10
• CPC Class Codes: H01Q 21/205 providing an omnidirectional coverage turnstile aerials H01Q21/26
• 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 3/24 varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching
• CPC Class Codes: H01Q 5/00 Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements combinations of separate active antenna units operating in different wavebands and connected to a common feeder system H01Q21/30
• CPC Class Codes: H01Q 5/371 Branching current paths
• CPC Class Codes: H01Q 9/0442 with particular tuning means
• CPC Class Codes: H01Q 9/26 with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength resonant loop antennas H01Q7/00

Abstract

A system and method for a wireless link to a remote receiver includes a multiband communication device for generating RF and a multiband planar antenna apparatus for transmitting the RF. The multiband planar antenna apparatus includes selectable antenna elements, each of which has gain and a directional radiation pattern. Switching different antenna elements results in a configurable radiation pattern. One or more directors and/or one or more reflectors may be included to constrict the directional radiation pattern. A multiband coupling network selectively couples the multiband communication device and the multiband planar antenna apparatus.

Claims

1. An antenna apparatus comprising:

a substrate having a first layer and a second layer;

a plurality of antenna elements on the first layer, each of the plurality of antenna elements including a first antenna element configured to radiate at a first radio frequency and a second antenna element configured to radiate at a second radio frequency;

an antenna element selector coupled to the plurality of antenna elements, the antenna element selector configured to selectively couple the antenna elements to a communication device for generating the first radio frequency and the second radio frequency; and

a ground component on the second layer, the ground component including a first portion corresponding to the first antenna element and a second portion corresponding to the second antenna element.

2. The antenna apparatus of claim 1 wherein the antenna element selector comprises a PIN diode network.

3. The antenna apparatus of claim 1 wherein the plurality of antenna elements is configured to radiate in an omnidirectional radiation pattern when two or more of the antenna elements are coupled to the communication device.

4. The antenna apparatus of claim 1, wherein the antenna element selector is configured to concurrently couple a first group of the plurality of antenna elements to the first radio frequency and a second group of the plurality of antenna elements to the second radio frequency.

5. The antenna apparatus of claim 1, wherein a combined radiation pattern resulting from two or more antenna elements being coupled to the communication device is more directional than the radiation pattern of a single antenna element.

6. The antenna apparatus of claim 1 wherein the first radio frequency is in a range of 2.4 to 2.4835 GHz and the second radio frequency is in a range of 4.9 to 5.825 GHz.

7. The antenna apparatus of claim 1 wherein the ground component includes a reflector configured to concentrate the directional radiation pattern of the first antenna element and the corresponding first portion of the ground component.

8. The antenna apparatus of claim 1 wherein the ground component includes a reflector configured to broaden a frequency response of the first antenna element and the corresponding first portion of the ground component.

9. The antenna apparatus of claim 1 wherein the first antenna element and the corresponding first portion of the ground component and the second antenna element and the corresponding second portion of the ground component comprise a dual resonant structure.

10. The antenna apparatus of claim 1, wherein the first antenna element and the corresponding first portion of the ground component comprise an arrow-shaped bent element.

11. An antenna apparatus comprising:

a substrate having a first layer and a second layer;

an antenna element on the first layer, the antenna element including a first antenna element configured to radiate at a first radio frequency and a second antenna element configured to radiate at a second radio frequency; and

a ground component on the second layer, the ground component including a first portion corresponding to the first antenna element, a second portion corresponding to the second antenna element, and a reflector configured to concentrate the directional radiation pattern of the first antenna element and corresponding first portion of the ground component, and wherein the first antenna element and the corresponding first portion of the ground component and the second antenna element and the corresponding second portion of the ground component comprise a dual resonant structure.

12. The antenna apparatus of claim 11 wherein the first radio frequency is in a range of 2.4 to 2.4835 GHz and the second radio frequency is in a range of 4.9 to 5.825 GHz.

13. An antenna apparatus comprising:

a substrate having a first layer and a second layer;

an antenna element on the first layer, the antenna element including a first antenna element configured to radiate at a first radio frequency and a second antenna element configured to radiate at a second radio frequency; and

a ground component on the second layer, the ground component including a first portion corresponding to the first antenna element, a second portion corresponding to the second antenna element, and a reflector configured to broaden a frequency response of the first antenna element and corresponding first portion of the ground component, and wherein the first antenna element and the corresponding first portion of the ground component and the second antenna element and the corresponding second portion of the ground component comprise a dual resonant structure.

14. The antenna apparatus of claim 13 wherein the first radio frequency is in a range of 2.4 to 2.4835 GHz and the second radio frequency is in a range of 4.9 to 5.825 GHz.

15. An antenna apparatus comprising:

a substrate having a first layer and a second layer;

an antenna element on the first layer, the antenna element including a first antenna element configured to radiate at a first radio frequency and a second antenna element configured to radiate at a second radio frequency; and

a ground component on the second layer, the ground component including a first portion corresponding to the first antenna element and a second portion corresponding to the second antenna element, the first antenna element and the corresponding first portion of the ground component comprising an arrow-shaped bent element, and wherein the first antenna element and the corresponding first portion of the ground component and the second antenna element and the corresponding second portion of the ground component comprise a dual resonant structure.

16. The antenna apparatus of claim 15 wherein the first radio frequency is in a range of 2.4 to 2.4835 GHz and the second radio frequency is in a range of 4.9 to 5.825 GHz.