Search

CN-121983779-A - Antenna assembly and electronic equipment

CN121983779ACN 121983779 ACN121983779 ACN 121983779ACN-121983779-A

Abstract

The invention provides an antenna assembly and electronic equipment, wherein the antenna assembly comprises an antenna array and a waveguide cavity, the antenna array comprises N groups of antenna units, N-1-level power dividers and signal sources, a first output end of each mth-level power divider is connected with an input end of each mth group of antenna units, a second output end of each mth-level power divider is connected with an input end of each mth+1-level power divider, a first output end of each N-1-level power divider is connected with an input end of each N-1-level antenna unit, a second output end of each N-1-level power divider is connected with an input end of each N-level antenna unit, and the power dividers of the antenna array are all arranged in the waveguide cavity so as to configure a wire between the signal sources and the antenna units into a quasi-coaxial suspension strip line. The number of antenna units connected with the two output ends of the power divider is different, the power divider is designed to reduce the power ratio of the power divider by adopting unequal unit numbers, and the low-amplitude-lobe suppression amplitude distribution is convenient to process and design to realize low-amplitude-lobe suppression.

Inventors

  • XU JUN
  • CHEN QINGYONG
  • WANG PU

Assignees

  • 成都天成电科科技有限公司

Dates

Publication Date
20260505
Application Date
20260206

Claims (10)

  1. 1. The antenna assembly is characterized by comprising an antenna array and a waveguide cavity, wherein the antenna array comprises N groups of antenna units, N-1 level power dividers and a signal source, and N is more than or equal to 3; The output end of the signal source is connected with the input end of the 1 st stage power divider, the first output end of the m stage power divider is connected with the input end of the m group of antenna units, the second output end of the m stage power divider is connected with the input end of the m+1st stage power divider, the first output end of the N-1 st stage power divider is connected with the input end of the N-1 th group of antenna units, the second output end of the N-1 st stage power divider is connected with the input end of the N group of antenna units, and m is more than or equal to 1 and less than or equal to N-2; the power splitters of the antenna array are all located in the waveguide cavity so as to configure the wiring between the signal source and the antenna unit into a quasi-coaxial suspension strip line.
  2. 2. The antenna assembly of claim 1, wherein the power ratio of the first output to the second output of each stage of the power divider is 1.
  3. 3. The antenna assembly of claim 1, wherein the nth group of antenna elements further comprises an intra-group power divider when the number of antenna elements in the nth group of antenna elements is greater than or equal to 2; the input end of the in-group power divider is used as an nth group of antenna units to be connected with the output end of the corresponding grade power divider, and the output ends of the in-group power divider are respectively connected with the input ends of all the antenna units in the nth group of antenna units.
  4. 4. The antenna assembly of claim 3, wherein N = 6, the 1 st and 2 nd antenna elements comprise 4 antenna elements, the 3 rd, 4 th, 5 th and 6 th antenna elements comprise 2 antenna elements.
  5. 5. The antenna assembly of claim 3, wherein N = 5, the 1 st group of antenna elements comprises 4 antenna elements, the 2 nd group of antenna elements, the 3 rd group of antenna elements, the 4 th group of antenna elements, and the 5 th group of antenna elements comprises 2 antenna elements.
  6. 6. The antenna assembly of claim 3, wherein N = 3, the group 1 antenna elements, the group 2 antenna elements, and the group 3 antenna elements comprise 2 antenna elements.
  7. 7. The antenna assembly of claim 1, wherein the radio frequency input power decreases sequentially from the first group of antenna elements to the nth group of antenna elements.
  8. 8. The antenna assembly of claim 1, wherein the antenna element comprises an array arm and a director.
  9. 9. An antenna assembly according to claim 8, wherein a separation wall is provided between adjacent antenna elements.
  10. 10. An electronic device comprising the antenna assembly of any one of claims 1-9.

Description

Antenna assembly and electronic equipment Technical Field The invention relates to the field of antennas, in particular to an antenna assembly and electronic equipment. Background The linear array antenna is increasingly applied in the field of communication, and plays an important role in guaranteeing the communication quality. In the prior art, a microstrip line or a strip line is often adopted for designing a power divider, and the design is simple, but the power divider reaches a millimeter wave frequency band, so that the loss is large, the antenna efficiency is low, the antenna gain is low, and finally the EIRP and G/T values of a system are obviously reduced, so that the detection of the system is not facilitated. In addition, the current power divider design adopts a unit number equal division design, which can lead the power ratio of the last stage power divider to be very large, so that the line width ratio of the strip line is very large, and the performance is greatly affected by the difference that the PCB board factories with too thin line width cannot process or process. Disclosure of Invention The present invention is directed to an antenna assembly and an electronic device, which are capable of improving the above-mentioned problems. In order to achieve the above object, the technical scheme adopted by the embodiment of the invention is as follows: In a first aspect, an embodiment of the present invention provides an antenna assembly, where the antenna assembly includes an antenna array and a waveguide cavity, where the antenna array includes N groups of antenna units, N-1 level power splitters, and a signal source, where N is greater than or equal to 3; The output end of the signal source is connected with the input end of the 1 st stage power divider, the first output end of the m stage power divider is connected with the input end of the m group of antenna units, the second output end of the m stage power divider is connected with the input end of the m+1st stage power divider, the first output end of the N-1 st stage power divider is connected with the input end of the N-1 th group of antenna units, the second output end of the N-1 st stage power divider is connected with the input end of the N group of antenna units, and m is more than or equal to 1 and less than or equal to N-2; the power splitters of the antenna array are all located in the waveguide cavity so as to configure the wiring between the signal source and the antenna unit into a quasi-coaxial suspension strip line. Optionally, the power ratio of the first output end and the second output end of each stage of power divider is 1. Optionally, when the number of antenna elements in the nth group of antenna elements is greater than or equal to 2, the nth group of antenna elements further includes an intra-group power divider; the input end of the in-group power divider is used as an nth group of antenna units to be connected with the output end of the corresponding grade power divider, and the output ends of the in-group power divider are respectively connected with the input ends of all the antenna units in the nth group of antenna units. Optionally, n=6, the 1 st and 2 nd antenna elements comprise 4 antenna elements, the 3 rd, 4 th, 5 th and 6 th antenna elements comprise 2 antenna elements. Optionally, n=5, the 1 st group of antenna elements comprises 4 antenna elements, the 2 nd group of antenna elements, the 3 rd group of antenna elements, the 4 th group of antenna elements and the 5 th group of antenna elements comprises 2 antenna elements. Optionally, n=3, the 1 st group of antenna elements, the 2 nd group of antenna elements and the 3 rd group of antenna elements comprise 2 antenna elements. Optionally, the radio frequency input power from the first group of antenna elements to the nth group of antenna elements decreases in sequence. Optionally, the antenna element comprises an array arm and a director. Optionally, a separation wall is provided between adjacent antenna elements. In a second aspect, an embodiment of the present invention provides an electronic device, including the antenna assembly described above. Compared with the prior art, the antenna assembly and the electronic equipment provided by the embodiment of the invention comprise an antenna array and a waveguide cavity, wherein the antenna array comprises N groups of antenna units, N-1-level power dividers and a signal source, the output end of the signal source is connected with the input end of the 1 st-level power divider, the first output end of the m-th-level power divider is connected with the input end of the m-th group of antenna units, the second output end of the m-th-level power divider is connected with the input end of the (m+1) -th-level power divider, the first output end of the N-1-level power divider is connected with the input end of the N-1-th group of antenna units, the second output end of the N-1-th-level power divider is connected wi