Antenna System for a Radar Transceiver

• US 20080316126A1
• Filed: 11/14/2005
• Published: 12/25/2008
• Est. Priority Date: 12/09/2004
• Status: Abandoned Application

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Voigtlander, Klaus
• Application Number:
  US11/792,895
• Publication Number:
  US 20080316126A1
• Time in Patent Office: Days
• US Class Current: 343/711
• CPC Class Codes: H01L 2223/6677 for antenna, e.g. antenna included within housing of semiconductor device antennas per se H01Q
• CPC Class Codes: H01L 2224/0554 External layer
• CPC Class Codes: H01L 2224/0555 Shape
• CPC Class Codes: H01L 2224/0556 Disposition
• CPC Class Codes: H01L 2224/05568 the whole external layer protruding from the surface
• CPC Class Codes: H01L 2224/05573 Single external layer
• CPC Class Codes: H01L 2224/05599 Material
• CPC Class Codes: H01L 2224/16225 the item being non-metallic, e.g. insulating substrate with or without metallisation
• CPC Class Codes: H01L 2924/00014 the subject-matter covered by the group, the symbol of which is combined with the symbol of this group, being disclosed without further technical details
• CPC Class Codes: H01L 2924/15313 being a land array, e.g. LGA
• CPC Class Codes: H01Q 1/2283 mounted in or on the surface of a semiconductor substrate as a chip-type antenna or integrated with other components into an IC package
• CPC Class Codes: H01Q 1/3233 particular used as part of a sensor or in a security system, e.g. for automotive radar, navigation systems
• CPC Class Codes: H01Q 1/42 Housings not intimately mechanically associated with radiating elements, e.g. radome
• CPC Class Codes: H01Q 19/24 the primary active element being centre-fed and substantially straight, e.g. H-antenna
• CPC Class Codes: H01Q 9/285 Planar dipole H01Q9/065 takes precedence; patch antenna H01Q9/0407

Abstract

An antenna system for a radar transceiver, in particular for ascertaining distance and/or velocity in the surroundings of motor vehicles, at least one antenna being situated on a chip, which includes at least one part of the transmitting and receiving units of the radar transceiver wherein the at least one antenna includes a first part situated on the chip and a second part situated at a distance from the first part and radiation-coupled to the first part.

Claims

1-11. -11. (canceled)

12. An antenna system for a radar transceiver comprising:

at least one antenna situated on a chip, which includes at least one part of transmitting and receiving units of the radar transceiver, the at least one antenna including a first part situated on the chip and a second part situated at a distance from the first part, the second part being radiation-coupled to the first part.

13. The antenna system according to claim 12, wherein the antenna system is for ascertaining at least one of a distance and a velocity in surroundings of a motor vehicle.

14. The antenna system according to claim 12, wherein the second part of the antenna is situated on a radome.

15. The antenna system according to claim 14, wherein the radome forms a housing which completely encapsulates the chip.

16. The antenna system according to claim 12, wherein the first part is a first transmitting/receiving dipole, and the second part is a second transmitting/receiving dipole.

17. The antenna system according to claim 16, wherein the first transmitting/receiving dipole has two halves separated by a gap.

18. The antenna system according to claim 17, wherein a differential or symmetric feed of the first transmitting/receiving dipole is provided.

19. The antenna system according to claim 16, wherein the first transmitting/receiving dipole has a length about equal to a wavelength of emitted/received electromagnetic radiation.

20. The antenna system according to claim 16, wherein the second transmitting/receiving dipole is one of an uninterrupted continuous dipole and a surface radiator.

21. The antenna system according to claim 20, wherein the second transmitting/receiving dipole has a length about equal to one-half of a wavelength of emitted/received electromagnetic radiation.

22. The antenna system according to claim 20, wherein the second transmitting/receiving dipole has a width which is about equal to a width of the first transmitting/receiving dipole.

23. The antenna system according to claim 16, wherein a distance between the first transmitting/receiving dipole and the second transmitting/receiving dipole is between 200 μ

m and 300 μ

m, in a frequency range of 76 GHz to 81 GHz.

24. The antenna system according to claim 23, wherein the distance is about 250 μ

m.