Radio antenna interface

Patent metadata

Field	Value
Publication number	US-12119537-B2
Application number	US-202117449328-A
Country	US
Kind code	B2
Filing date	Sep 29, 2021
Priority date	Sep 29, 2021
Publication date	Oct 15, 2024
Grant date	Oct 15, 2024

Abstract

A radio antenna interface for a portable radio is provided comprising a radio housing having a control top with a circular walled control top opening for receiving an antenna, the circular walled control top opening having an interior surface with a protruding bumper feature formed thereon. An antenna having has a base portion for insertion into the circular walled control top opening, the base portion has a ring feature forming a full circumference bump around the base portion. Once the antenna is assembled with the portable radio, the ring feature is located beneath and abuts with the protruding bumper to form the radio antenna interface. The radio antenna interface provides increased friction to minimize loosening of the antenna under extreme usage conditions.

First claim

We claim:

1. An antenna interface connector system for a portable radio, comprising:
a radio housing comprising a control top having a circular walled control top opening for receiving an antenna, the circular walled control top opening having an interior surface with a protruding bumper feature formed thereon;
an antenna having a first end and second end formed at opposing ends of a longitudinal axis, the first end providing a base portion inserted into the circular walled control top opening, the base portion having a ring feature, the ring feature forming a full circumference bump around the base portion; and
the ring feature being located beneath and abutting with the protruding bumper to form the radio antenna interface.

2. The antenna interface connector system of claim 1 , wherein the radio antenna interface maintains a constant pre-load that prevents antenna axial advancement and antenna axial rotation thereby preventing loosening of the antenna from the control top of the portable radio.

3. The antenna interface connector system of claim 2 , wherein the constant pre-load of the radio antenna interface is maintained under operating conditions of the portable radio comprising drop, vibration, and tumble conditions.

4. The antenna interface connector system of claim 1 , wherein the antenna comprises an external antenna sheath and the ring feature is formed of an elastomeric material integrally formed as part of the antenna sheath, and the protruding bumper is integrally formed as part of the circular walled control top opening.

5. The antenna interface connector system of claim 1 , wherein the antenna is coupled to the radio by:
screwing a radio frequency (RF) connector of the antenna into an RF receptacle of the portable radio until the ring feature abuts with the protruding bumper feature; and
continue screwing the RF connector of the antenna into the RF receptacle of the radio thereby pushing the ring feature over the protruding bumper feature to locate the ring feature beneath and abutting with the protruding bumper.

6. The antenna interface connector system of claim 5 , wherein the ring feature and the protruding bumper feature compress in response to the ring feature being pushed over the protruding bumper and decompress in response to the ring feature being located beneath and abutting with the protruding bumper thereby providing both rotational and axial friction.

7. The antenna interface connector system of claim 1 , wherein the radio antenna interface is integrally formed without use of snap lock, o-ring, or spring plunger piece parts.

8. The antenna interface connector system of claim 1 , further comprising:
a threaded radio frequency (RF) connector protruding from the antenna for screwing into a corresponding threaded RF receptacle within the circular walled control top opening, the threaded RF receptacle within the circular walled control top opening providing a hard stop to a flange of the threaded RF connector of the antenna.

9. The antenna interface connector system of claim 8 , wherein:
the threaded RF connector of the antenna is screwed into the corresponding threaded RF receptacle of the circular walled control top opening until the ring feature of the antenna abuts with the protruding bumper feature of the circular walled control top opening; and
the ring feature compressibly slides over the protruding bumper feature, in response to an external push force, thereby locating the ring feature beneath and abutting with the protruding bumper to form a frictional interface.

10. The antenna interface connector system of claim 9 , wherein the protruding bumper of the circular walled control top opening and the ring feature of the antenna are formed of elastomeric material.

11. The antenna interface connector system of claim 1 , further comprising:
a cast aluminum carrier incorporated into the circular walled control top opening, the protruding bumper feature being bonded to a top portion of the cast aluminum carrier.

Assignees

• Motorola Solutions Inc

Inventors

• Chew Jin Siang
• Lee Gary A
• Akens Jody H
• Mtchedlishvili George
• Miehl Andrew P

Classifications

• H04B1/0346 Primary

  Hand-held transmitters · CPC title

• H01Q1/1207

  for fastening a rigid aerial element · CPC title

• H01Q1/273

  Adaptation for carrying or wearing by persons or animals · CPC title

• H01Q1/242

  specially adapted for hand-held use · CPC title

• H01Q1/088

  Quick-releasable antenna elements · CPC title