Component for a wireless communications equipment card

• US 6,539,207 B1
• Filed: 06/27/2000
• Issued: 03/25/2003
• Est. Priority Date: 06/27/2000
• Status: Active Grant

• Current Assignee: Symbol Technologies, LLC (Zebra Technologies Corporation)
• Original Assignee: Symbol Technologies, Inc. (Zebra Technologies Corporation)
• Inventors: Kogan, Eduard M., del Castillo, Francisco Javier
• Primary Examiner(s): VUONG, QUOCHIEN B
• Application Number:
  US09/604,202
• Time in Patent Office: 1,001 Days
• Field of Search: 455/90, 455/117, 455/128, 455/129, 455/347, 455/351, 455/562, 455/575, 455/557, 455/558, 343/700.MS, 343/702, 343/841, 379/433.11, 379/433.09, 361/748, 361/752, 361/753, 361/724
• US Class Current: 455/90.3
• CPC Class Codes: H01Q 1/2275 associated to expansion card or bus, e.g. in PCMCIA, PC cards, Wireless USB
• CPC Class Codes: H01Q 1/44 using equipment having another main function to serve additionally as an antenna , e.g. means for giving an antenna an aesthetic aspectH01Q1/27 - H01Q1/34 take precedence
• CPC Class Codes: H01Q 1/526 Electromagnetic shields
• CPC Class Codes: H01Q 9/0421 with a shorting wall or a shorting pin at one end of the element H01Q9/0414 takes precedence
• CPC Class Codes: H04B 1/38 Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving

Abstract

A grounded, shielded holder for a radio frequency communications card installed in a terminal used in a wireless network includes a built-in antenna for transmitting and receiving radio frequency signals to and from the card. The antenna is formed from the material of the holder itself.

Claims

1. A component for a radio frequency communications card, comprising:

a) a holder constituted of an electrically conductive material, for holding and shielding the card from radio frequency interference, the holder having a main portion lying in a plane extending over the card and having a cutout extending through the main portion;

b) an antenna constituted of the same material as, and being of one-piece with, the holder, for conducting radio frequency signals to and from the card, the antenna being constituted of an antenna portion originally present in the cutout and bent out of the plane of the main portion; and

c) a grounding contact on the holder for grounding the holder and enabling the plane of the main portion to serve as a ground plane for the antenna.

2. The component of claim 1, wherein the holder includes side portions spaced apart of each other at opposite sides of the main portion and extending over side edges of the card, and mounting portions on the side portions for fixedly mounting the holder.

3. The component of claim 2, wherein the grounding contact is located on the side portions of the holder, for contacting grounded areas on the card.

4. The component of claim 1, wherein the holder, antenna and grounding contact are constituted of a unitary piece of sheet material.

5. The component of claim 1, wherein the antenna portion has a first part extending generally perpendicularly to the ground plane, a second part extending generally parallel to the ground plane, and a feeding point connected to the ground plane and to the second part.

6. The component of claim 5, wherein the first and second parts have different transverse widths.

7. The component of claim 5;

and further comprising a spacer constituted of an electrically insulating material and positioned between the second part and the main portion.

8. The component of claim 1, wherein the main portion has another cutout;

and further comprising another antenna constituted of another antenna portion originally present in the other cutout and bent out of the plane of the main portion.

9. The component of claim 1;

and further comprising a tongue on the main portion, for resiliently bearing against the card.

10. A component for a radio frequency communications card, comprising:

a) a holder constituted of an electrically conductive material and extending along a longitudinal direction, and operative for receiving the card inserted into the holder along the longitudinal direction, for holding the card in a held position, and for shielding the card from radio frequency interference, the holder having a main portion lying in a plane extending over the card, a cutout extending through the main portion, a pair of side portions spaced apart along a transverse direction perpendicular to the longitudinal direction, and an end portion for abutting the card in the held position;

b) an antenna constituted of the same material as, and being of one-piece with, the holder, for conducting radio frequency signals to and from the card, the antenna being constituted of an antenna portion originally present in the cutout and bent out of the plane of the main portion; and

c) a grounding contact on the side portions for grounding the holder and enabling the plane of the main portion to serve as a ground plane for the antenna.

11. The component of claim 10, wherein the antenna portion has a first part extending generally perpendicularly to the ground plane, a second part extending generally parallel to the ground plane, and a feeding point connected to the ground plane and to the second part.

12. The component of claim 11;

and further comprising a spacer constituted of an electrically insulating material and positioned between the second part and the main portion.

13. The component of claim 10, wherein the main portion has another cutout;

and further comprising another antenna constituted of another antenna portion originally present in the other cutout and bent out of the plane of the main portion.

14. A component for a radio frequency communications card, comprising:

a) a holder constituted of an electrically conductive material, for holding and shielding the card from radio frequency interference, the holder having a main portion lying in a plane extending over the card and having a cutout extending through the main portion;

b) an antenna constituted of the same material as, and being of one-piece with, the holder, for conducting radio frequency signals to and from the card, the antenna being constituted of an antenna portion originally present in the cutout and bent out of the plane of the main portion; and

c) a grounding contact on the holder for grounding the holder and enabling the plane of the main portion to serve as a ground plane for the antenna, the antenna portion having a first part extending generally perpendicularly to the ground plane, a second part extending generally parallel to the ground plane, and a feeding point connected to the ground plane and to the second part.

15. The component of claim 14, wherein the main portion has another cutout;

and further comprising another antenna constituted of another antenna portion originally present in the other cutout and bent out of the plane of the main portion.