Self-latching antenna field coupler

• US 5,557,287 A
• Filed: 03/06/1995
• Issued: 09/17/1996
• Est. Priority Date: 03/06/1995
• Status: Expired due to Fees

• Current Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Pottala, James V., Ford, Robert B.
• Primary Examiner(s): Wimer, Michael C.
• Application Number:
  US08/399,271
• Time in Patent Office: 561 Days
• Field of Search: 343/702, 343/703, 343/841, 343/872, 343/905, 343/906, 455/89, 455/90
• US Class Current: 343/702
• CPC Class Codes: H01Q 1/103 Latching means; ensuring extension or retraction thereof
• CPC Class Codes: H01Q 1/242 specially adapted for hand-held use
• CPC Class Codes: H01Q 1/32 Adaptation for use in or on road or rail vehicles

Abstract

A self-latching antenna field coupler (120) includes two housing members (210, 230). One of the housing members (230) is movable, relative to the other housing member (210), between a first position to define an antenna receiving channel (222), and a second position to define a secured antenna chamber (322). A latch actuator (250) is mechanically coupled to the movable housing member (230), to automatically effect movement of the movable housing member (230) from the first position to the second position when an antenna (195) is received in the antenna receiving channel (222).

Claims

1. A self-latching antenna field coupler, comprising:

first and second mechanically coupled housing members, the first housing member being movable, relative to the second housing member, between a first position to define an antenna receiving channel, and a second position to form an antenna chamber defined by the first and second housing members; and

a latch actuator positioned within the antenna receiving channel when the first housing member is in the first position, latch actuator automatically effecting movement of the first housing member from the first position to the second position when an antenna is received in the antenna receiving channel.

2. The self-latching antenna field coupler of claim 1, wherein the first and second housing members are coupled to electrical ground.

3. The self-latching antenna field coupler of claim 2, further comprising an antenna coupling element positioned adjacent to at least one of the first and second housing members.

4. The self-latching antenna field coupler of claim 3, wherein the antenna chamber has an access window and the antenna coupling element is positioned adjacent to the access window.

5. The self-latching antenna field coupler of claim 3, wherein the antenna coupling element is positioned within the antenna chamber.

6. The self-latching antenna field coupler of claim 5, wherein the antenna chamber is substantially enclosed by the first and second housing members.

7. The self-latching antenna field coupler of claim 1, wherein the latch actuator comprises a portion of the first housing member.

8. The self-latching antenna field coupler of claim 1, further comprising a spring-loaded locking member that engages the latch actuator when the first housing member is in the second position.

9. A self-latching antenna field coupler for coupling wireless radio frequency signals emitted by an antenna received therein, comprising:

a first housing member;

a second housing member being pivotable, relative to the first housing member, between an open position to define an antenna receiving channel, and a closed position to define a substantially enclosed antenna chamber, the first and second housing members being coupled to electrical ground to form an electrical ground plane, the second housing member being biased toward an open position;

an antenna coupling element positioned within the substantially enclosed antenna chamber to passively couple the wireless radio frequency signals; and

a latch actuator mechanically coupled to the second housing member, and automatically effecting movement of the second housing member from the open position to the closed position when the antenna is received in the antenna receiving channel.

10. The self-latching antenna field coupler of claim 9 wherein the latch actuator comprises a portion of the second housing member.

11. The self-latching antenna field coupler of claim 9, further comprising a spring-loaded locking member that engages the latch actuator when the second housing member is in the closed position.

12. The self-latching antenna field coupler of claim 9 wherein the first and second housing members are rotatably coupled.

13. An adapter for housing a radio communication device having an attached antenna, the adapter comprising:

an antenna field coupler, comprising;

a first housing member;

a second housing member being movable, relative to the first housing member, between an open position to define an antenna receiving channel, and a closed position to define a substantially enclosed antenna chamber, the first and second housing members being coupled to electrical ground to form an electrical ground plane;

an antenna pickup element positioned within the substantially enclosed antenna chamber;

a latch actuator mechanically coupled to the second housing member; and

a spring-loaded locking member that engages the latch actuator when the second housing member is in the closed position;

wherein the latch actuator is engaged by the attached antenna to automatically cause movement of the second housing member from the open position to the closed position when the attached antenna is placed in the antenna receiving channel, such that the attached antenna is secured within the substantially enclosed antenna chamber adjacent to the antenna pickup element.

14. The adapter of claim 13, wherein the latch actuator comprises a portion of the second housing member.

15. The adapter of claim 14, wherein the latch actuator has a catch formed therein, and the spring-loaded locking member engages the catch when the second housing member is in the closed position.

16. The adapter of claim 15, wherein the spring-loaded locking member comprises a release member to disengage the spring-loaded locking member from the catch.

17. The adapter of claim 13, wherein the first and second housing members encompass the antenna when the antenna is in the substantially enclosed antenna chamber and the second housing member is in the closed position.

18. The adapter of claim 13, further comprising:

an adapter housing having a radio pocket for receiving a radio;

wherein the antenna field coupler forms part of an anchor that secures the radio within the radio pocket, when the radio is inserted into the radio pocket.

19. An apparatus, comprising:

a radio communication device having a first antenna;

a second antenna external to the radio communication device;

a vehicular adapter having the radio communication device housed therein, the vehicular adapter having a passive antenna field coupler to receive the first antenna, and to couple the first antenna to the second antenna, the passive antenna field coupler comprising;

a first housing member;

a second housing member being pivotable, relative to the first housing member, between an open position to define an antenna receiving channel, and a closed position to define a substantially enclosed antenna chamber, the first and second housing members being coupled to electrical ground to form an electrical ground plane;

an antenna pickup element positioned within the substantially enclosed antenna chamber;

a latch actuator formed on the second housing member; and

a spring-loaded locking member that engages the latch actuator when the second housing member is in the closed position;

wherein the latch actuator is engaged by the first antenna to automatically cause movement of the second housing member from the open position to the closed position when the first antenna is placed in the antenna receiving channel, such that the first antenna is secured within the substantially enclosed antenna chamber adjacent to the antenna pickup element.