Flip cover and antenna assembly for a portable phone

• US 6,490,435 B1
• Filed: 01/16/1996
• Issued: 12/03/2002
• Est. Priority Date: 01/16/1996
• Status: Expired due to Term

• Current Assignee: Blackberry Limited
• Original Assignee: Ericsson, Inc. (Telefonaktiebolaget LM Ericsson)
• Inventors: Ma, Yawei, MacDonald, James D. Jr., Hayes, Gerard James, Karabinis, Peter
• Primary Examiner(s): TO, DORIS HA
• Application Number:
  US08/586,432
• Time in Patent Office: 2,513 Days
• Field of Search: 455/89, 455/90, 455/129, 455/12.1, 455/347, 455/575, 455/427, 455/550, 379/58, 379/59, 379/429, 379/433, 379/440, 379/433.01, 379/433.11, 379/433.13, 343/702
• US Class Current: 455/90.1
• CPC Class Codes: H01Q 1/243 with built-in antennas
• CPC Class Codes: H01Q 1/244 extendable from a housing along a given path
• CPC Class Codes: H04B 1/3833 Hand-held transceivers

Abstract

A flip cover and antenna assembly for a portable phone is disclosed as being rotatably coupled to a main housing thereof. The flip cover and antenna assembly includes a first flip cover housing, a second flip cover housing matable with the first flip cover housing, and an antenna element positioned between the first and second flip cover housings. The antenna element further includes a ground plane bonded to the ground plane first surface. A dielectric foam is positioned over any remaining area of the ground plane first surface. The first and second flip cover housings have flanges which extend from at least a portion thereof to wrap around corresponding edges of the main housing, which enables extensions of the ground plane to be provided conforming to the flanges. The ground plane may also be patterned in order to control the radiation pattern thereof and limit any interference from other components of the portable phone. The flip cover and antenna assembly may also include a second antenna in the form of a printed circuit antenna or a monopole antenna.

Claims

1. A flip cover and antenna assembly for a portable phone, wherein said

cover is rotatably coupled to a top portion of a main housing, said flip cover and antenna assembly comprising:

(a) a first flip cover housing;

(b) a second flip cover housing matable with said first flip cover housing; and

(c) an antenna assembly positioned between said first and second flip cover housings, said antenna assembly further comprising;

(1) a ground plane having a first surface and a second surface; and

(2) at least one radiating patch antenna element bonded to said ground plane first surface, said radiating patch antenna element being operable in a frequency bandwidth for satellite mode communication.

2. The flip cover and antenna assembly of claim 1, further comprising a dielectric material surrounding each of said radiating patch antenna elements.

3. The flip cover and antenna assembly of claim 2, said dielectric material comprising a dielectric foam positioned over any remaining area of said ground plane first surface.

4. The flip cover and antenna assembly of claim 1, wherein said first and second flip cover housings are constructed of a plastic material.

5. The flip cover and antenna assembly of claim 1, said second flip cover housing including a metallized layer formed thereon abutting said ground plane second surface.

6. The flip cover and antenna assembly of claim 1, wherein said first and second flip cover housings function as radomes to said radiating patch antenna element.

7. The flip cover and antenna assembly of claim 1, wherein said ground plane is patterned in shape and area to control radiation patterns of said radiating patch antenna element and to minimize RF interference with said portable phone and any user thereof.

8. The flip cover and antenna assembly of claim 1, further comprising a printed circuit antenna formed onto a surface of said flip cover for cellular mode operation.

9. The flip cover and antenna assembly of claim 1, further comprising a monopole antenna located between said first and second flip cover housings for cellular mode operation.

10. The flip cover and antenna assembly of claim 1, further comprising:

(a) a first radiating patch antenna element for transmitting signals within a first specified frequency bandwidth; and

(b) a second radiating patch antenna element for receiving signals within a second specified frequency bandwidth.

11. The flip cover and antenna assembly of claim 1, said radiating patch antenna elements being operable in a frequency bandwidth for satellite mode communication.

12. A flip cover and antenna assembly for a portable phone, wherein said flip cover is rotatably coupled to a top portion of a main housing, said flip cover and antenna assembly comprising:

(a) a first flip cover housing;

(b) a second flip cover housing matable with said first flip cover housing, wherein said first and second flip cover housings include flanges extending from at least a portion thereof to wrap around corresponding edges of said main housing; and

(c) an antenna assembly positioned between said first and second flip cover housings, said antenna assembly further comprising;

(1) a ground plane having a first surface and a second surface, said ground plane including extensions on each side conforming to said flanges of said first and second flip cover housings; and

(2) at least radiating patch antenna element bonded to said ground plane first surface, said radiating patch antenna element being operable in a frequency bandwidth for satellite mode communication.

13. A portable phone, comprising:

(a) a main housing;

(b) circuitry located within said main housing for operating said portable phone in a satellite mode of communication;

(c) a flip cover rotatably secured to a top portion of said main housing about a first axis, said flip cover including a first flip cover housing and a second flip over housing mated together; and

(d) an antenna coupled to said satellite circuitry for receiving and transmitting signals in said satellite communication mode, said antenna being located between said first and second flip cover housings and further comprising;

(1) a ground plane having a first surface and a second surface; and

(2) at least one radiating patch antenna element bonded to said ground plane first surface.

14. The portable phone of claim 13, further comprising a dielectric foam positioned over any remaining area of said ground plane first surface.

15. The portable phone of claim 13, said first and second flip cover housings including flanges extending from at least a portion of their perimeter which wrap around corresponding edges of said main housing, said ground plane including extensions on each side conforming to said flanges on said first and second flip cover housings.

16. The portable phone of claim 13, said second flip cover housing including a metallized layer formed thereon abutting said ground plane second surface.

17. The portable phone of claim 13, wherein said ground plane is patterned in shape and area to control radiation patterns of said radiating patch antenna elements and to minimize RF interference with said portable phone and any user thereof.

18. The portable phone of claim 13, further comprising:

(a) circuitry located within said main housing for operating said portable phone in a cellular mode of communication;

(b) an antenna coupled to said cellular circuitry for receiving and transmitting signals in said cellular communication mode, said cellular antenna being integrated with said flip cover.

19. The portable phone of claim 18, said cellular antenna comprising a printed circuit antenna formed onto a surface of said flip cover.

20. The portable phone of claim 18, said cellular antenna comprising a monopole antenna located between said first and second flip cover housings.

21. The portable phone of claim 13, said satellite antenna further comprising:

(a) a first radiating patch antenna element for transmitting signals within a first specified frequency bandwidth; and

(b) a second radiating patch antenna element for receiving signals within a second specified frequency bandwidth.