Battery pack antenna suitable for use with two-way portable transceivers

• US 5,020,136 A
• Filed: 01/18/1990
• Issued: 05/28/1991
• Est. Priority Date: 04/21/1986
• Status: Expired due to Fees

• Current Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Garay, Oscar M., Patsiokas, Stelios J., Balzano, Quirino
• Primary Examiner(s): Olms, Douglas W.
• Assistant Examiner(s): Smith, Ralph
• Application Number:
  US07/465,571
• Time in Patent Office: 495 Days
• Field of Search: 455/89, 455/127, 455/90, 455/128, 455/129, 455/272, 455/274, 455/349, 455/351, 455/347, 455/348, 429/1, 343/702
• US Class Current: 343/872
• CPC Class Codes: H01Q 1/22 by structural association with other equipment or articles
• CPC Class Codes: H01Q 1/36 Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewithH01Q1/08, H01Q1/14 take precedence
• CPC Class Codes: H01Q 9/42 with folded element, the folded parts being spaced apart a small fraction of the operating wavelength
• CPC Class Codes: H04B 1/3883 Arrangements for mounting batteries or battery chargers
• CPC Class Codes: H04M 1/0262 for a battery compartment

Abstract

A combination battery pack and low profile antenna arrangement for use in conjunction with a two-way portable transceiver includes an enclosure containing an electrical battery with positive and negative electrodes. A pair of terminals are attached to the outer surface of the enclosure and are coupled to the positive and negative electrodes. A low profile antenna structure is disposed within the enclosure and includes a feed point for coupling RF energy to and from the antenna structure. An antenna coupling arrangement is electrically coupled to the feed point for coupling RF energy into and out of the enclosure.

Claims

1. A battery pack/antenna, comprising:

an antenna for radiating energy;

at least one energy storage means for providing a ground plane for said antenna; and

an insulative housing containing at least said at least one energy storage means.

2. The battery pack/antenna of claim 1, wherein said at least one energy storage means comprises a portion of a parasitic element of said antenna.

3. The battery pack/antenna of claim 1, wherein said antenna includes a parasitic element and an active element for radiating energy.

4. The battery pack/antenna of claim 3, wherein said at least one energy storage means provides a portion of said parasitic element.

5. The battery pack/antenna of claim 1, wherein said at least one energy storage means comprises metal casing.

6. A battery pack/antenna, comprising:

an antenna for radiating energy;

a battery extending th length of said antenna for providing a portion of a ground plane for said antenna;

a ground structure for providing another portion of said ground plane for said antenna; and

an insulative housing containing said antenna, said battery, and said ground structure.

7. The battery pack/antenna of claim 6, further comprising antenna coupling means attached to an exterior surface of said housing for coupling energy into said housing from outside said housing.

8. The battery pack/antenna of claim 7, wherein said antenna coupling means comprises a terminal for coupling to said antenna and said battery.

9. The battery pack/antenna of claim 7, wherein said antenna coupling means comprises a terminal for coupling to said antenna.

10. A battery pack/antenna, comprising:

an antenna for radiating energy;

a battery extending the horizontal length of said antenna for providing a portion of a ground plane for said antenna, said battery having a positive electrode for coupling energy to said antenna;

a ground structure having a vertical length set at approximately one quarter wavelength of said antenna for providing another portion of said ground plane to enhance the performance of said antenna; and

an insulative housing containing said antenna, said battery, and said ground structure, said housing having a positive electrical contact for coupling energy to said positive electrode of said battery.

11. The battery pack/antenna of claim 10, wherein said ground structure is coupled to a negative electrode of said battery.

12. A battery pack/antenna, comprising:

an antenna including a parasitic element and an active element for radiating energy;

at least one energy storage means for providing a portion of said parasitic element;

a ground structure for providing another portion of said parasitic element; and

an insulative housing containing said antenna, said at least one energy storage means, and said ground structure.

13. A battery pack/antenna, comprising:

an antenna including a parasitic element and an active element for radiating energy;

a battery extending the length of said antenna for providing a portion of said parasitic element;

a ground structure for providing another portion of said parasitic element; and

an insulative housing containing said antenna, said battery, and said ground structure.

14. A battery pack/antenna, comprising:

an antenna including a parasitic element and an active element for radiating energy;

a battery extending the length of said antenna for providing a portion of said parasitic element, said battery having a positive electrode for coupling energy to said antenna;

a ground structure for providing another portion of said parasitic element; and

insulative housing containing said antenna, said battery, and said ground structure, said housing having a positive electrical contact for coupling energy to said positive electrode of said battery.