Dielectric resonator antenna

• US 6,323,824 B1
• Filed: 08/06/1999
• Issued: 11/27/2001
• Est. Priority Date: 08/17/1998
• Status: Expired due to Term

• Current Assignee: Uniloc 2017 LLC (SoftBank Group Corp.)
• Original Assignee: US Philips Corporation (Koninklijke Philips N.V.)
• Inventors: Schlenker, Tilman, Heinrichs, Frank
• Primary Examiner(s): Wong, Don
• Assistant Examiner(s): TRAN, THUY V
• Application Number:
  US09/369,540
• Time in Patent Office: 844 Days
• Field of Search: 343/846, 343/873, 343/785, 343/789, 343/700.MS, 343/702
• US Class Current: 343/846
• CPC Class Codes: H01Q 1/242 specially adapted for hand-held use
• CPC Class Codes: H01Q 9/0485 Dielectric resonator antennas

Abstract

A dielectric resonator antenna has a dielectric layer and a conducting layer formed on a main surface of the dielectric layer. An electrical contact is formed on the main surface for connecting the dielectric layer to a transmission line for transferring a signal between the dielectric layer and the transmission line. The electrical contact is insulated from the conducting layer. A conducting strip is connected to the electrical contact and is on a side surface of the dielectric layer. The side surface is not on the same plane of the main surface. Rather, the side surface is perpendicular to the main surface of the dielectric layer.

Claims

1. A dielectric resonator antenna comprising:

a dielectric layer which is configured to resonate in response to a signal;

a a conducting layer formed on a main surface of said dielectric layer; and

an electrical contact of a conducting material formed on said main surface for connecting said dielectric layer to a transmission line for transferring said signal between said dielectric layer and said transmission line, wherein said electrical contact is insulated from said conducting layer.

2. The dielectric resonator antenna of claim 1, further comprising a conducting strip which is connected to said electrical contact, said conducting strip being formed on a side surface of said dielectric layer.

3. The dielectric resonator antenna of claim 2, wherein said side surface is perpendicular to said main surface.

4. The dielectric resonator antenna of claim 2, wherein said side surface is not on a plane of said main surface.

5. The dielectric resonator antenna of claim 1, wherein said conducting layer and said electrical contact are a metal.

6. The dielectric resonator antenna of claim 1, wherein said conducting layer and said electrical contact are formed from a silver paste.

7. The dielectric resonator antenna of claim 1, wherein said conducting layer and said electrical contact are formed from burning a silver paste on said main surface of said dielectric layer.

8. The dielectric resonator antenna of claim 1, wherein said dielectric layer is a ceramic of (Ba,Nd,Gd)TiO₃.

9. The dielectric resonator antenna of claim 1, wherein said transmission line is a strip line.

10. The dielectric resonator antenna of claim 1, wherein said dielectric layer has a shape of a parallelepiped having two head ends, two side faces, and upper face and said main surface which is opposite said upper face.

11. The dielectric resonator antenna of claim 10, further comprising a conducting strip which is connected to said electrical contact, said conducting strip being formed on one of said two head ends of said dielectric layer.

12. A transmitter having a dielectric resonator antenna, said dielectric resonator antenna comprising:

a dielectric layer which is configured to resonate in response to a signal;

a conducting layer formed on a main surface of said dielectric layer; and

an electrical contact of a conducting material formed on said main surface for connecting said dielectric layer to a transmission line for transferring a signal between said dielectric layer and said transmission line, wherein said electrical contact is insulated from said conducting layer.

13. A receiver having a dielectric resonator antenna, said dielectric resonator antenna comprising:

a dielectric layer which is configured to resonate in response to a signal;

a conducting layer formed on a main surface of said dielectric layer; and

an electrical contact of a conducting material formed on said main surface for connecting said dielectric layer to a transmission line for transferring a signal between said dielectric layer and said transmission line, wherein said electrical contact is insulated from said conducting layer.

14. A mobile radiotelephone having a dielectric resonator antenna, said dielectric resonator antenna comprising:

a dielectric layer which is configured to resonate in response to a signal;

a conducting layer formed on a main surface of said dielectric layer; and

an electrical contact of a conducting material formed on said main surface for connecting said dielectric layer to a transmission line for transferring a signal between said dielectric layer and said transmission line, wherein said electrical contact is insulated from said conducting layer.