US 6,639,562 B2Granted

GSM/DCS stubby antenna

AssigneeCenturion Wireless Tech., Inc.

InventorsShanmuganthan Suganthan, Peter Webster

Life of this patent

Estimating the term…

Loading patent…

Abstract

A stubby antenna comprising a RF conductive connector stud having opposite ends with the stud including means for mounting the antenna in the mounting hole of a communications device such as a cellular telephone. The stud is press-fitted into a body member with the body member having an opening or compartment formed therein which receives a coilform having a coil radiating element and a center wire. The coil radiating element is comprised of a plurality of first coils and a plurality of second coils with the first plurality of coils having a different pitch than the second plurality of coils. The center wire of the radiating element extends through the coils and through the actual bore formed in the coilform. A sheath encloses the body member with the sheath, body member, conductor stud and radiating element being arranged such that the radiating element is held in compression, ensuring that a good electrical contact is made between the connector stud and the radiating element.

Claims5

Dependent claims

A dual band stubby antenna for a wireless communications device having an antenna mounting opening formed therein, comprising:

a RF conductive connector stud having first and second ends;
said first end of said connector stud being adapted to be received by the antenna mounting opening for RF connection to the circuitry of the wireless communications device;
a coil radiator element having first and second ends;
said first end of said coil radiator element being in RF engagement with said second end of said connector stud;
said coil radiator element comprising a plurality of first coils adjacent said first end thereof and a plurality of second coils adjacent said second end thereof;
said second end of said coil radiator element terminating in a center wire which extends from said second end through the coils of said coil radiator element towards said first end thereof;
a body member having first and second ends;
said body member having a first opening extending into said first end thereof which receives said second end of said stud connector;
said second end of said body member having a cylindrical opening extending thereto which receives said coil radiator element;
and an insulating sheath enclosing at least a portion of said body member,
wherein said coil radiator element is mounted on a cylindrical coilform having an axial boreformed therein, said center wire being received in said axial bore.

8 more elements

Dependencies are inferred from the claim text.

Facts

Application: 10/021,808Filed 17 Dec 2001
Published: US 2003/0112203 A119 Jun 2003
Granted: 28 Oct 2003
Term ends: Not estimatedThe source records don’t support an estimate.

Classification4 codes

H01Q 1/362
Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith: for broadside radiating helical antennas
H01Q 1/243
Specially adapted for hand-held use: with built-in antennas
H01Q 11/08
Non-resonant antennas, e.g. travelling-wave antenna: helical antennas
H01Q
Antennas, i.e. radio aerials