Title:
基体及び導体トラック構体を有するアンテナ
Document Type and Number:
Japanese Patent JP2004522347
Kind Code:
A
Abstract:
An antenna (1) is described with a dielectric or permeable substrate (10) and at least one resonant conductor track structure (20) which is provided in particular for use in the high-frequency and microwave ranges and which is characterized in that the substrate (10) comprises at least one cavity (30). The cavity is preferably provided in a main surface of the substrate such that the latter has substantially the shape of a U-profile. This cavity not only enhances the radiation efficiency, but it also considerably reduces the total weight of the antenna. Further advantages of the antenna are that it offers a high degree of miniaturization as well as the possibility of surface mounting (SMD) on, for example, a printed circuit board (PCB).
Inventors:
Akim Hirugels
Application Number:
JP2002574162A
Publication Date:
July 22, 2004
Filing Date:
March 19, 2002
Export Citation:
Assignee:
Koninklijke Philips Electronics N.V.
International Classes:
H01Q1/24; H01Q1/38; H01Q5/10; H01Q9/04; H01Q9/30; (IPC1-7): H01Q1/38; H01Q1/24; H01Q5/01; H01Q9/30
Domestic Patent References:
| JPH07249932A | 1995-09-26 | |||
| JPH05347507A | 1993-12-27 | |||
| JPH09153734A | 1997-06-10 | |||
| JP2002076756A | 2002-03-15 | |||
| JPH11122032A | 1999-04-30 | |||
| JPS62247607A | 1987-10-28 | |||
| JPH11297532A | 1999-10-29 | |||
| JPH08274534A | 1996-10-18 | |||
| JPH0884013A | 1996-03-26 |
Foreign References:
| WO2001018909A1 | 2001-03-15 |
Attorney, Agent or Firm:
Kosaku Sugimura