Hand held communication device with decoupled antenna

• US 20040204199A1
• Filed: 12/31/2002
• Published: 10/14/2004
• Est. Priority Date: 12/31/2002
• Status: Abandoned Application

• Current Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Schmertmann, Neil Johan, Stratis, Glafkos K., Ponce De Leon, Lorenzo A., Kroegel, Robert Andrew, Zax, Glenn Scott
• Application Number:
  US10/334,351
• Publication Number:
  US 20040204199A1
• Time in Patent Office: Days
• US Class Current: 455/575.1
• CPC Class Codes: H01Q 1/243 with built-in antennas
• CPC Class Codes: H04M 1/0214 Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position combined with translation movement H04M1/0235
• CPC Class Codes: H04M 1/0247 comprising more than two body parts

Abstract

A hand held communication device (10) employs a first flip portion (14) that is pivotal with respect to a base portion (12), wherein the first flip portion (14) includes an antenna (20) and at least a power amplifier circuit (200) operatively coupled to an antenna (20). A second flip portion (16), also pivotal with respect to the base portion (12), includes at least one of a display (24) and a microphone (22). The first flip portion (14) preferably fits within a recessed area (46) of the second flip portion (16) and deploys automatically when the hand held device is opened.

Claims

1. A wireless, hand held communication device comprising:

a base portion;

a first flip portion pivotal with respect to the base portion, the first flip portion including an antenna and at least a power amplifier circuit operatively coupled to the antenna; and

a second flip portion pivotal with respect to the base portion, the second flip portion including at least one of a display and a microphone.

2. The wireless communication device of claim 1, wherein:

the second flip portion further includes a recessed area;

the first flip portion is pivotal with respect to the second flip portion; and

at least a portion of the first flip portion fits within the recessed area of the second flip portion when the second flip portion and the first flip portion are in a closed position.

3. The wireless communication device of claim 2, wherein the second flip portion is interposed between the base portion and the first flip portion and wherein:

the second flip portion further includes a conductive element positioned to form an antenna shield and a at least one side wall defining the recessed area to receive the at least a portion of the first flip portion; and

the first flip portion further includes a transceiver circuit, operatively coupled to the antenna, for demodulating data received by the antenna and modulating data for transmission by the antenna.

4. The wireless communication device of claim 2, wherein the first flip portion is shorter in length than the second flip portion.

5. The wireless communication device of claim 1, further comprising a separating structure that separates the first and second flip portions a fixed distance apart when the first and second flip portions are in a full open position.

6. The wireless communication device of claim 1, wherein the first flip portion further includes a radio frequency choke element operatively coupled to at least decouple radio frequency energy communicated by the antenna from baseband digital data.

7. A wireless, hand held communication device comprising:

a base portion;

a first flip portion, pivotal with respect to the base portion, including an antenna; and

a second flip portion, also pivotal with respect to the base portion;

that includes a recessed area;

wherein at least a portion of the first flip portion fits within the recessed area of the second flip portion when the second flip portion and the first flip portion are in a closed position.

8. The wireless communication device of claim 7, wherein the second flip portion includes a plurality of side walls defining the recessed area that are configured to receive the at least a portion of the first flip portion.

9. A hand held communication device comprising:

a base portion including at least a speaker and a baseband processing circuit operative to at least process baseband data from a signal received by an antenna;

a first flip portion pivotal with respect to the base portion, the first flip portion including the antenna, a power amplifier circuit operatively coupled to the antenna, and a demodulation circuit operatively coupled to the antenna and the baseband processing circuit, the demodulation circuit operative to produce the baseband data from the signal received by the antenna; and

a second flip portion pivotal with respect to the base portion and including at least a microphone.

10. The hand held communication device of claim 9, wherein:

the second flip portion includes a recessed area; and

the first flip portion is pivotal with respect to the second flip portion; and

at least a portion of the first flip portion fits within the recessed area of the second flip portion when the second flip portion and the first flip portion are in a closed position.

11. The hand held communication device of claim 10, wherein the second flip portion is interposed between the base portion and the first flip portion and wherein:

the second flip portion further includes a conductive element positioned to form an antenna shield and a plurality of side walls defining the recessed area; and

the first flip portion further includes a transceiver circuit operatively coupled to the antenna for demodulating the signal received by the antenna and modulating data for transmission by the antenna.

12. The hand held communication device of claim 11 wherein the first flip portion is shorter in length than the second flip portion.

13. The hand held communication device of claim 9, further comprising a separating structure that separates the first and second flip portions a fixed distance apart when the first and second flip portions are in a full open position.

14. The hand held communication device of claim 9, wherein the first flip portion includes a radio frequency choke element operatively coupled to decouple radio frequency energy communicated by the antenna from baseband digital data.

15. The hand held communication device of claim 10, wherein:

the base portion further includes an input device, a display, and a battery compartment; and

the second flip portion further includes a conductive element coupled to form an antenna shield and a plurality of side walls defining the recessed area.