阅读说明：本技术 天线阵列 (Antenna array ) 是由 丹·拉斐利 于 2017-12-27 设计创作，主要内容包括：RF雷达,包括第一发射天线阵列和第一接收天线阵列；其中第一发射天线阵列的发射天线彼此间隔开第一距离；其中第一接收天线阵列的接收天线彼此间隔开第二距离；其中第一距离和第二距离中的每一个都超过半个波长；其中第一距离不同于第二距离；其中第一距离与第二距离之间的比率不是整数；并且其中第二距离与第一距离之间的比率不是整数。(An RF radar comprising an th transmit antenna array and a th receive antenna array, wherein transmit antennas of the th transmit antenna array are spaced apart from each other by a th distance, wherein receive antennas of the th receive antenna array are spaced apart from each other by a second distance, wherein each of the th distance and the second distance exceeds half a wavelength, wherein the th distance is different from the second distance, wherein a ratio between the th distance and the second distance is not an integer, and wherein a ratio between the second distance and the th distance is not an integer.)

1, A Radio Frequency (RF) radar, comprising:

th transmitting antenna array and th receiving antenna array;

wherein transmit antennas of the th transmit antenna array are spaced apart from each other by a th distance;

wherein the receive antennas of the th receive antenna array are spaced apart from each other by a second distance;

wherein each of the th and second distances exceeds one-half wavelength;

wherein the th distance is different from the second distance;

wherein a ratio between the th distance and the second distance is not an integer, and

wherein a ratio between the second distance and the th distance is not an integer.

2. The radio frequency radar of claim 1, wherein the th distance and the second distance are no less than two wavelengths.

3. The RF radar of claim 1, wherein the second distance is seventy-five percent of the th distance.

4. The RF radar of claim 1, wherein the th distance is no less than two wavelengths, and wherein the second distance is seventy-five percent of the th distance.

5. The RF radar of claim 4, wherein the second distance is less than two wavelengths.

6. The RF radar of claim 1 wherein the transmit antennas of the th transmit antenna array are horn antennas, and wherein the receive antennas of the th receive antenna array are horn antennas.

7. The RF radar of claim 1, comprising a receive waveguide array coupled to the receive antenna array.

8. The RF radar of claim 7 wherein the receive waveguides of the -th waveguide array are formed from a cavity formed within the -th structural element and a cover formed in the second structural element.

9. The RF radar of claim 8 wherein said th structural element is an outer shell of said radar.

10. The RF radar of claim 9 wherein the second structural element is a conductive plane.

11. The RF radar of claim 1, comprising a transmit waveguide array coupled to the th transmit antenna array.

12. The RF radar of claim 11 wherein the launch waveguides of the waveguide array are formed from a cavity formed within the th structural element and a cover formed in the second structural element.

13. The RF radar of claim 12 wherein said th structural element is an outer shell of said radar.

14. The RF radar of claim 9 wherein the second structural element is a conductive plane.

15. The RF radar of claim 1 wherein the transmit antennas of the th transmit antenna array are horn antennas, and wherein the receive antennas of the th receive antenna array are horn antennas.

16. The RF radar of claim 1 wherein the transmit antennas of the th transmit antenna array are printed antennas and wherein the receive antennas of the th receive antenna array are printed antennas.

17. The RF radar of claim 1 wherein the th transmit antenna array is parallel to the th receive antenna array.

18. The RF radar of claim 1 wherein the th transmit antenna array and the th receive antenna array are configured to form an RF channel equivalent to an RF channel formed by a single transmit antenna and a non-uniform receive antenna array.

19. The RF radar of claim 1, further comprising a second transmit antenna array and a second receive antenna array;

wherein the transmit antennas of the second transmit antenna array are spaced apart from each other by a third distance;

wherein the receive antennas of the second receive antenna array are spaced apart from each other by a fourth distance;

wherein each of the third and fourth distances exceeds one-half wavelength;

wherein the third distance is different from the fourth distance;

wherein a ratio between the third distance and the fourth distance is not an integer; and is

Wherein a ratio between the fourth distance and the third distance is not an integer.

20. The RF radar of claim 19 wherein the th transmit antenna array is parallel to the th receive antenna array and wherein the second transmit antenna array is parallel to the second receive antenna array.

21. The RF radar of claim 19 wherein the third distance and the fourth distance are no less than two wavelengths.

22. The RF radar of claim 19 wherein the fourth range is seventy-five percent of the third range.

23. The RF radar of claim 19 wherein the third distance is no less than two wavelengths, and wherein the fourth distance is seventy-five percent of the third distance.

24. The RF radar of claim 23 wherein the fourth distance is less than two wavelengths.

25. The RF radar of claim 19 wherein the transmit antennas of the second transmit antenna array are horn antennas, and wherein the receive antennas of the second receive antenna array are horn antennas.

26. The RF radar of claim 19 wherein the transmit antennas of the second transmit antenna array are printed antennas and wherein the receive antennas of the second receive antenna array are printed antennas.

27. The RF radar of claim 19, comprising a second receive waveguide array coupled to the second receive antenna array.

28. The RF radar of claim 27 wherein the receive waveguides of the second array of receive waveguides are formed by a cavity formed within a third structural element and a cover formed in a fourth structural element.

29. The RF radar of claim 27 wherein the receive waveguides of the second array of receive waveguides are formed by a cavity formed within the third structural element and a cover formed in the second structural element.

30. The RF radar of claim 19 wherein the th transmit antenna array and the th receive antenna array are perpendicular to the second transmit antenna array and the second receive antenna array.

31. The RF radar of claim 19 wherein said th transmit antenna array, said th receive antenna array, said second transmit antenna array and said second receive antenna array surround electrical circuitry of the RF radar and radio frequency circuitry, said electrical circuitry including a digital processor.

32. The RF radar of claim 19 wherein the transmit antennas of the second transmit antenna array are shorter than the transmit antennas of the th transmit antenna array and wherein the receive antennas of the second receive antenna array are shorter than the receive antennas of the th receive antenna array.

33. The RF radar of claim 19 wherein the th receive antenna array is coupled to the th receive waveguide array via a th receive transition array, wherein the th receive transition array is coupled to a th receive microstrip array, wherein the second receive antenna array is coupled to a second receive waveguide array via a second transition array, wherein the second receive transition array is coupled to a second receive microstrip array, wherein the th receive microstrip array and the second receive microstrip array lie in a plane, wherein the th receive waveguide array and the th array lie in a different plane than the second receive waveguide array and the second receive transition array.

34. The RF radar of claim 33 wherein the th and second receive microstrip arrays are connected to a support element, wherein the th and second receive waveguide arrays are on opposite sides of the support element.

35. The RF radar of claim 34 wherein the support element is a printed circuit board.

36. The RF radar of claim 19 wherein the th transmit antenna array is coupled to the th transmit waveguide array via a th transmit transition array, wherein the th transmit transition array is coupled to a th transmit microstrip array, wherein the second transmit antenna array is coupled to a second transmit waveguide array via a second transition array, wherein the second transmit transition array is coupled to a second transmit microstrip array, wherein the th transmit microstrip array and the second transmit microstrip array lie in a plane, wherein the th transmit waveguide array and the second transmit transition array.

37. The RF radar of claim 33 wherein the st and second transmit microstrip arrays are connected to a support element, and wherein the st and second transmit waveguide arrays are located on opposite sides of the support element.

38. The RF radar of claim 37 wherein the support element is a printed circuit board.

39. The RF radar of claim 1 wherein the th receive antenna array and the th transmit antenna array are integrated.

40, a method for operating a Radio Frequency (RF) radar, the method comprising:

transmitting th transmitted RF signals from an th transmit antenna array of the RF radar;

receiving a th received RF signal from a th receive antenna array of the RF radar as a result of transmitting the th transmitted RF signal;

wherein transmit antennas of the th transmit antenna array are spaced apart from each other by a th distance;

wherein the receive antennas of the th receive antenna array are spaced apart from each other by a second distance;

wherein each of the th and second distances exceeds one-half wavelength;

wherein the th distance is different from the second distance;

wherein a ratio between the th distance and the second distance is not an integer, and

wherein a ratio between the second distance and the th distance is not an integer.

41. The method of claim 40 wherein the th received RF signal is received from an object located within a field of view of the radio frequency radar.

42. The method according to claim 41, wherein the method comprises processing the received RF signal to determine information about the object.

43. The method of claim 40 further comprising receiving a second received RF signal from a second receive antenna array of the radio frequency radar as a result of transmitting the th transmitted RF signal, wherein the second receive antenna array is directed to the th receive antenna array and to the th transmit antenna array.

44. The method of claim 43, further comprising:

transmitting a second transmitted RF signal from a second transmit antenna array of the RF radar;

receiving a third received RF signal by the th receive antenna array of the RF radar as a result of transmitting the second transmitted RF signal, and

receiving, by a second receive antenna array of the RF radar, a fourth received RF signal as a result of transmitting the second transmitted RF signal.

45. The method according to claim 41, wherein the method comprises processing the received RF, the second RF receive signal, the third RF receive signal and the fourth RF receive signal to determine information about the object.

46. The method of claim 45, wherein at least of the th transmit antenna array and the th receive antenna array are directed to at least of the second transmit antenna array and the second receive antenna array.

47. The method of claim 45, comprising resolving spatial ambiguity of the RF radar by processing the th, second, third, and fourth received signals.

48. The method of claim 45, wherein the resolving of the spatial ambiguity is based on a difference between a spatial ambiguity associated with the th received signal, a spatial ambiguity associated with the second received signal, a spatial ambiguity associated with the third received signal, and a spatial ambiguity associated with the fourth received signal.

49. The method of claim 45, wherein the processing comprises applying Minimum Variance Distortionless Response (MVDR) beamforming.

50. The method of claim 45, wherein the processing comprises applying linear beamforming.

51. The method of claim 45, wherein the processing comprises applying minimum variance distortion free response (MVDR) beamforming and applying linear beamforming.

52, A Radio Frequency (RF) unit, comprising:

th transmitting antenna array and th receiving antenna array;

wherein transmit antennas of the th transmit antenna array are spaced apart from each other by a th distance;

wherein the receive antennas of the th receive antenna array are spaced apart from each other by a second distance;

wherein each of the th and second distances exceeds one-half wavelength;

wherein the th distance is different from the second distance;

wherein a ratio between the th distance and the second distance is not an integer, and

wherein a ratio between the second distance and the th distance is not an integer.

53. A Radio Frequency (RF) radar, comprising:

th transmitting antenna array;

th receiving antenna array;

a second transmit antenna array;

a second receive antenna array;

th receiving microstrip array;

a second receiving microstrip array;

th transmitting microstrip array;

a second transmit microstrip array;

wherein the th receive antenna array is coupled to the th receive waveguide array via a th receive transition array;

wherein the th transmit antenna array is coupled to the th transmit waveguide array via a th transmit transition array;

wherein the second receive antenna array is coupled to a second receive waveguide array via a second receive transition array;

wherein the second transmit antenna array is coupled to a second transmit waveguide array via a second transmit transition array;

wherein the th receiving microstrip array and the second receiving microstrip array are located on the same side of a support element, the same side of the support element supporting the th receiving microstrip array and the second receiving microstrip array, and

wherein the th receive antenna array is not parallel to the second receive antenna array.

54. The RF radar of claim 53 wherein the -th and second arrays of receive transitions are located on opposite sides of the support element.

55. The RF radar of claim 54, comprising a cavity passing through portions of the support element, and wherein at least receive microstrips from among the receive microstrip array and the second receive microstrip array are located proximate the cavity.

56. The RF radar of claim 53 wherein the th transmit microstrip array and the second transmit microstrip array are located on the same side of the support element, and wherein the th transmit antenna array is not parallel to the second transmit antenna array.

57. The RF radar of claim 53 wherein the -th and second transmit transition arrays are located on opposite sides of the support element.

58. The RF radar of claim 57, comprising a cavity passing through portions of the support element, and wherein at least transmit microstrips from the transmit microstrip array and the second transmit microstrip array are located proximate the cavity.

59, A Radio Frequency (RF) radar unit comprising:

th object;

a second object;

an intermediate surface;

a plurality of microstrips;

wherein the th waveguide is formed by a cavity formed within the th object and a th cover formed in the intermediate element;

wherein the second waveguide is formed by a cavity formed in the second body and a second cover formed in the intermediate element;

wherein microstrips of the plurality of microstrips are coupled to the th waveguide via a th transition and other microstrips of the plurality of microstrips are coupled to the second waveguide via a second transition.