Antenna Configuration

• US 20070229387A1
• Filed: 03/03/2005
• Published: 10/04/2007
• Est. Priority Date: 03/25/2004
• Status: Active Grant

• Current Assignee: NXP B.V. (NXP Semiconductors NV)
• Original Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Inventors: Pelzer, Heiko
• Granted Patent: US 7,830,330 B2
• Time in Patent Office: Days
• US Class Current: 343/876
• CPC Class Codes: H01Q 1/22 by structural association with other equipment or articles
• CPC Class Codes: H01Q 1/243 with built-in antennas
• CPC Class Codes: H01Q 1/40 Radiating elements coated with or embedded in protective material
• CPC Class Codes: H01Q 1/42 Housings not intimately mechanically associated with radiating elements, e.g. radome
• CPC Class Codes: H01Q 21/28 Combinations of substantially independent non-interacting antenna units or systems multiple beam H01Q25/00
• CPC Class Codes: H01Q 9/0414 in a stacked or folded configuration
• CPC Class Codes: H01Q 9/0442 with particular tuning means
• CPC Class Codes: H01Q 9/0457 electromagnetically coupled to the feed line
• CPC Class Codes: H01Q 9/145 by varying the electrical length

Abstract

Regarding an antenna configuration (1) preferably provided for a telecommunication device and comprising a first resonator structure (6) and second resonator structure (RS) being capacitive coupled with the first resonator structure (6) it is suggested to provide the antenna configuration (1) with a control electrode (2) and a switching stage (3), said control electrode (2) by means of the switching stage (3) being switchably connected to ground (G) and said switching stage (3) enabling to change capacitive coupling of the two resonator structures (6, RS) and thus to change the resonance frequency of the antenna configuration (1) and making possible to switch between a first frequency range and a second frequency range for enhancing the bandwidth and achieving improved matching of the antenna configuration (1).

Claims

1. Antenna configuration for a telecommunication device (TCD) wherein the antenna configuration comprising a first resonator structure and a second resonator structure (RS) and a control electrode said two resonator structures are capacitive coupled to one another and said control electrode being provided and realized 10 for changing the capacitive coupling between the first resonator structure an the second resonator structure (RS) and wherein the control electrode being contactable from outside the antenna configuration and wherein a switching means being associated with the control electrode, by means of the switching means the control electrode being connectable to a reference potential (G).

2. Antenna configuration according to claim 1, wherein the switching means being part of the antenna configuration and/or being an external unit with regard to the antenna configuration.

3. Antenna configuration according to claim 1, wherein the switching means being designed to connect the control electrode to ground (G).

4. Antenna configuration according to claim 1, wherein the antenna configuration being realized by means of a planar inverted F antenna or a shorted patch antenna or a stub antenna.

5. Antenna configuration according to claim 1, wherein 30 the antenna configuration comprising a dielectric substrate retaining the first resonator structure and the second resonator structure (RS), the first resonator structure being connected to a feed line provided on the dielectric substrate, and the second resonator structure (RS), by means of the dielectric substrate being electrically isolated from the first resonator structure and being located adjacent to the first resonator structure, being connected to ground (G).

6. Antenna configuration according to claim 5, wherein the first resonator structure and the second resonator structure (RS) are realized by printed structures printed on a surface of the dielectric substrate.

7. Antenna configuration according to claim 5, wherein the first resonator structure and the second resonator structure (RS) are at least partially located in the interior of the dielectric substrate.

8. Antenna configuration (1) according to claim 7, wherein the antenna configuration being manufactured by usage of low temperature cofired ceramic technology.

9. Antenna configuration according to claim 1, wherein the switching means comprises a PIN diode or a semiconductor switch.

10. Antenna configuration according to claim 1, wherein the switching means comprises a variable capacitance diode.

11. Telecommunication device (TCD), comprising an antenna configuration according to claim 1.

12. Method of operating a telecommunication device comprising an antenna configuration according to claim 1, wherein the antenna configuration comprises a control electrode said control electrode is contacted from outside the antenna configuration and for changing the resonance frequency of the antenna configuration contacting of the control electrode from outside is done by switchably connecting the control electrode 30 to a reference potential (G).

13. Method according to claim 12, wherein the resonance frequency is changed between a first frequency band and a second frequency band.

14. Method according to claim 13, wherein the resonance frequency is changed between the DCS band and the UMTS band.

15. Method according to claim 12, wherein the resonance frequency is changed within a given frequency band between a first sub-band and a second sub-band.