Antenna for portable wireless communication apparatuses

• US 6,911,943 B2
• Filed: 06/27/2002
• Issued: 06/28/2005
• Est. Priority Date: 06/27/2001
• Status: Expired due to Fees

• Current Assignee: EMW Antenna Company Limited
• Original Assignee: EMW Antenna Company Limited
• Inventors: Ryou, Byung-Hoon, Sung, Weon-Mo
• Primary Examiner(s): Nguyen, Hoang V.
• Application Number:
  US10/481,509
• Publication Number:
  US 20040189536A1
• Time in Patent Office: 1,097 Days
• Field of Search: 343/702, 343/725, 343/900, 343/901, 343/767, 343/770
• US Class Current: 343/702
• CPC Class Codes: H01Q 1/242 specially adapted for hand-held use
• CPC Class Codes: H01Q 1/244 extendable from a housing along a given path
• CPC Class Codes: H01Q 13/12 Longitudinally slotted cylinder antennas; Equivalent structures
• CPC Class Codes: H01Q 21/205 providing an omnidirectional coverage turnstile aerials H01Q21/26

Abstract

Disclosed herein is an antenna for portable wireless communication apparatuses. The antenna for portable wireless communication apparatuses includes an antenna element provided on its outer surface with a conductor on which a plurality of openings are formed. The outer portion of the interior of the conductor is filled with a dielectric material. This antenna element is connected in parallel with a linear radiator in an insulated state, thereby radiating electromagnetic waves and at the same time being capable of adjusting the radiated amount and direction of the electromagnetic waves.

Claims

1. An antenna for portable wireless communication apparatuses, comprising:

a linear radiator; and

an antenna element, provided on its outer surface with a conductor having one or more openings and on an outer portion of an interior of the conductor with a dielectric material, and connected in parallel with the linear radiator in an insulated state, thereby radiating electromagnetic waves and at the same time being capable of adjusting the radiated amount and direction of the electromagnetic waves.

2. The antenna according to claim 1, wherein said linear radiator is inserted into said antenna element while both the linear radiator and the antenna element are fixedly attached to the housing.

3. The antenna according to claim 1, wherein said linear radiator is on its upper portion connected in parallel with the antenna element.

4. The antenna according to claim 1, wherein said openings are each formed in one of an elongated shape, a rectangular shape and a triangular shape.

5. The antenna according to claim 1, wherein said openings each have a butterfly shape.

6. The antenna according to claim 1, wherein said openings are two or more openings equal to each other in form and size and positioned on a circumferential surface of the conductor at desired intervals.

7. The antenna according to claim 1, wherein said openings are two or more openings, equal to each other in size, different from each other in form and positioned on a circumferential surface of the conductor at desired intervals.

8. The antenna according to claim 1, wherein said openings are two or more openings, equal to each other in form and different from each other in size and positioned on a circumferential surface of the conductor at desired intervals.

9. The antenna according to claim 1, wherein said openings are two or more openings, equal to each other in form and size, different from each other in position and formed at desired intervals.

10. The antenna according to claim 1, wherein said openings are two or more openings, different from each other in form, size and position.

11. The antenna according to claim 1, wherein said dielectric material is plated on its outer surface with a conductive metal.

12. The antenna according to claim 1, wherein said dielectric material is coated on its outer surface with a printed circuit substrate.