Mountable antenna elements for dual band antenna

• US 10,224,621 B2
• Filed: 08/15/2016
• Issued: 03/05/2019
• Est. Priority Date: 05/12/2009
• Status: Expired due to Fees

• Current Assignee: ARRIS Enterprises LLC (CommScope Holding Company, Inc.)
• Original Assignee: ARRIS Enterprises LLC (CommScope Holding Company, Inc.)
• Inventors: Shtrom, Victor, Baron, Bernard
• Primary Examiner(s): Tran, Hai
• Application Number:
  US15/237,547
• Publication Number:
  US 20160352006A1
• Time in Patent Office: 932 Days
• Field of Search: 343700 MS, 343912, 343872, 343702
• 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 1/50 Structural association of antennas with earthing switches, lead-in devices or lightning protectors
• CPC Class Codes: H01Q 15/14 Reflecting surfaces; Equivalent structures electromagnetic shields H01Q1/526
• CPC Class Codes: H01Q 15/148 with means for varying the reflecting properties H01Q15/147 takes precedence
• CPC Class Codes: H01Q 19/10 using reflecting surfaces
• CPC Class Codes: H01Q 21/28 Combinations of substantially independent non-interacting antenna units or systems multiple beam H01Q25/00
• CPC Class Codes: H01Q 9/00 Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
• CPC Class Codes: H01Q 9/0442 with particular tuning means
• CPC Class Codes: H01Q 9/0471 Non-planar, stepped or wedge-shaped patch

Abstract

A mountable antenna element is constructed as an object from a single piece of material and can be configured to transmit and receive RF signals, achieve optimized impedance values, and operate in a concurrent dual-band system. The mountable antenna element may have one or more legs, an RF signal feed, and one or impedance matching elements. The legs and RF signal feed can be coupled to a circuit board. The impedance matching elements can be utilized to create a capacitance with a portion of the circuit board and thereby optimize impedance of the antenna element at a desired operating frequency. The mountable antenna includes features that enable it for use in concurrent dual band operation with the wireless device. Because the mountable antenna element can be installed without needing additional circuitry for matching impedance and can be constructed from a single piece of material, the antenna element provides for more efficient manufacturing.

Claims

1. A reflector mountable to a printed circuit board (PCB) for reflecting a radio frequency (RF) signal comprising:

a first side and a second side disposed at an angle of about ninety degrees from one another;

a base having an end, wherein a first end of the first side and a first end of the second side meet at the base end and extend separately to a respective outer end;

a plurality of mounting pins at the second end of the first side in a first plane for positioning the reflector to respective holes on a surface of the PCB;

a coupling plate at the second end of the second side in a second plane perpendicular to the first plane and parallel to the surface of the PCB for mounting the reflector to the surface of the PCB; and

a switch for switchably coupling the coupling plate to a ground layer of the PCB, wherein when the switch is open, the reflector does not change a radiation pattern of an antenna element mounted to the PCB and directed at the reflector, and when the switch is closed the reflector is connected to the ground layer to cause the reflector to reflect the radiation pattern.

2. The reflector of claim 1, wherein the first side, the second side, the base and the plurality of mounting pins are formed by bending a single piece of substantially “

T”

shaped metal by about ninety degrees at a middle of the single piece of substantially “

T”

shaped metal.

3. The reflector of claim 1, wherein the coupling plate extends parallel to the PCB.

4. The reflector of claim 1, wherein coupling plate extends at an angle of about ninety degrees from the second side.

5. The reflector of claim 1, wherein the single piece of substantially “

T”

shaped metal includes a first arm extending in a first direction and a second arm extending in a second direction, the first direction and the second direction being at least ninety degrees apart.

6. The reflector of claim 1, wherein the coupling plate is coupled to the switch, the switch element engaging or disengaging the reflector.

7. The reflector of claim 1, wherein the antenna element includes one or more impedance matching elements extending downward towards the PCB.

8. The reflector of claim 7, wherein the one or more impedance matching elements are part of a single object comprising the antenna element.

9. The reflector of claim 8, wherein the one or more impedance matching elements are positioned downward away from a top surface of the antenna element and towards the ground layer of the PCB.