Electric component, method for the production thereof, and its use

• US 20040036148A1
• Filed: 08/06/2003
• Published: 02/26/2004
• Est. Priority Date: 08/28/2000
• Status: Abandoned Application

• Current Assignee: Epcos AG (TDK Corporation)
• Original Assignee: Epcos AG (TDK Corporation)
• Inventors: Mayer, Martin, Block, Christian, Unegg, Klaus, Grebien, Roman
• Application Number:
  US10/363,084
• Publication Number:
  US 20040036148A1
• Time in Patent Office: Days
• US Class Current: 257/621
• CPC Class Codes: H01Q 9/0407 Substantially flat resonant element parallel to ground plane, e.g. patch antenna dipole H01Q9/285; monopole H01Q9/40
• CPC Class Codes: H01Q 9/045 with particular feeding means for circular polarisation H01Q9/0428
• CPC Class Codes: H01Q 9/0464 Annular ring patch

Abstract

The invention relates to an electric component having a main body (1), which features an upper side and a lower side and consists at least partially of a dielectric, on the upper side of which a raised or recessed limiting structure (2) borders an upper contact surface (3) which is covered by an upper contact layer (4) whose lower side features two lower contact surfaces (5, 6) insulated from one another, each of which is covered with a lower contact layer (7, 8), and in which one of the lower contact layers (5, 6) is connected in electrically conductive fashion to the upper contact layer (4) by a connecting element (9) passing through the interior of the main body (1). In addition, the invention relates to a method for manufacturing the component as well as its use. The advantage of the component according to the invention is that the upper contact surface (3) can be easily applied at a defined size by means of silk screening or vacuum metallization. As a result, antennas with defined properties, such as frequency position and input impedance, can be easily manufactured.

Claims

1. Electric component having a main body (1), which features an upper side and a lower side and consists at least partially of a dielectric,

on the upper side of which a raised or recessed limiting structure (2) borders an upper contact surface (3) which is covered by an upper contact layer (4)

whose lower side features two lower contact surfaces (5, 6) insulated from one another, each of which is covered with a lower contact layer (7, 8), and

in which one of the lower contact layers (5, 6) is connected in electrically conductive fashion to the upper contact layer (4) by a connecting element (9) passing through the interior of the main body (1).

2. Component according to claim 1,

in which the dielectric is a ceramic material suitable for microwave resonators.

3. Component according to claims 1 through 2,

in which the connecting element (9) is a conductive coating which is applied to an interior surface of the main body (1) formed by a hole (10).

4. Component according to claims 1 through 3,

in which the lower side of the main body (1) features a raised or recessed divider structure (11), which divides the lower contact surfaces (5, 6) from one another.

5. Component according to claims 1 through 4,

in which the upper contact surface (3) is provided with one or more additional raised or recessed structures (12) to enlarge its surface area.

6. Component according to claims 1 through 5,

in which the limiting structure (2) is recessed and the upper contact layer (4) is formed by a metal paste applied by silk screening.

7. Component according to claims 1 through 5,

in which the limiting structure (3) is raised and the upper contact layer (4) is a metal coating applied by means of a precipitation process.

8. Method for manufacturing a component according to claims 1 through 7, comprising the following steps:

(a) Production of a main body (1) which features an upper side with a raised limiting structure (2).

(b) Precipitation of a contact layer (4) onto the upper side of the main body (1).

(c) Removal of the contact layer (4) from the raised limiting structure.

10. Method according to claim 8 or 9,

wherein the limiting structure (2) is created by means of a pressing-in process during manufacture of the main body (1).

11. Use of the component according to claims 1 to 7 as an antenna for radio signals.

9. Method for manufacturing a component according to claims I through 7, comprising the following steps:

(a) Production of a main body (1) which features an upper side with a recessed limiting structure (2).

(b) Application, by means of silk screening, of a contact layer (4) onto the portion of the upper side of the main body (1) which is raised relative to the limiting structure (2).