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CN-224217705-U - Broadband compact circular polarization probe

CN224217705UCN 224217705 UCN224217705 UCN 224217705UCN-224217705-U

Abstract

The utility model discloses a broadband compact type circularly polarized probe, and relates to the technical field of circularly polarized antennas. The circular polarization probe comprises a feed part and a radiation part, wherein a standard waveguide channel is formed in the feed part, a parallel waveguide channel is formed in the radiation part, the standard waveguide channel is communicated with the parallel waveguide channel, the length of the parallel waveguide channel is smaller than one wavelength, and a slot is formed in the broadside of an outer side port of the parallel waveguide channel. The circular polarization probe has a simple structure, can greatly reduce the space size and the use difficulty during actual application and array, and reduces the actual processing and use cost.

Inventors

  • HU NAN

Assignees

  • 胡南

Dates

Publication Date
20260508
Application Date
20250715

Claims (8)

  1. 1. The utility model provides a broadband compact circular polarization probe, its characterized in that includes feed portion (1) and radiation portion (2), be formed with standard waveguide passageway (3) in feed portion (1), be formed with parallel waveguide passageway (4) in radiation portion (2), standard waveguide passageway (3) with parallel waveguide passageway (4) are linked together, the length of parallel waveguide passageway (4) is less than a wavelength, just be formed with fluting (5) on the broadside of the outside port of parallel waveguide passageway (4).
  2. 2. The broadband compact circular polarization probe of claim 1, wherein the feeding portion (1) comprises a flange body (1-1), a rectangular boss connecting portion (1-2) is formed on the end face, close to the radiating portion (2), of the flange body (1-1), a transition connecting portion (1-3) is formed on the rectangular boss connecting portion (1-2), the cross section of the transition connecting portion (1-3) is gradually reduced, the transition connecting portion (1-3) is used for being connected with the radiating portion (2), a standard waveguide channel (3) is formed at the center of the flange body (1-1), the rectangular boss connecting portion (1-2) and the transition connecting portion (1-3), and standard waveguide interfaces (6) are formed at the inner end and the outer end of the standard waveguide channel.
  3. 3. Broadband compact circular polarization probe according to claim 2, characterized in that several mounting holes (1-4) and positioning holes (1-5) are formed along the outer circumference of the flange body (1-1).
  4. 4. The broadband compact circular polarization probe according to claim 1, wherein the whole of the feeding part (1) is of a rectangular structure, and the inner end part of the parallel waveguide channel (4) in the feeding part is communicated with the inner port of the standard waveguide channel (3).
  5. 5. Broadband compact circular polarized probe according to claim 1, characterized in that the slot (5) is triangular and the triangular slot overlaps a portion of the structure in vertical projection along opposite faces of the radiation port face structure of the outer port of the parallel waveguide channel (4).
  6. 6. Broadband compact circular polarized probe according to claim 1, characterized in that the slot (5) is sector-shaped and the sector-shaped slot overlaps a part of the structure in vertical projection along opposite faces of the radiation port face structure of the outer port of the parallel waveguide channel (4).
  7. 7. Broadband compact circular polarized probe according to claim 1, characterized in that the slot (5) is circular and the circular slot overlaps a portion of the structure when projected vertically along opposite faces of the radiation port face structure of the outer port of the parallel waveguide channel (4).
  8. 8. The broadband compact circular polarized probe of claim 1, wherein the slot (5) is irregularly shaped and the irregularly shaped slot overlaps a portion of the structure when projected vertically along opposite faces of the radiation port face structure of the outer port of the parallel waveguide channel (4).

Description

Broadband compact circular polarization probe Technical Field The utility model relates to the technical field of circularly polarized antennas, in particular to a broadband compact circularly polarized probe. Background The circular polarization probe is an antenna structure for receiving or transmitting circular polarization electromagnetic wave signals, and the obtained circular polarization wave needs to meet three conditions, namely 90-degree spatial phase difference, 90-degree transmission phase difference and equal amplitude, wherein electric field distribution in the traditional waveguide structure is mainly concentrated in the x direction, and electric field in the y direction is very weak, so that the 90-degree spatial phase difference is difficult to form. In addition, the conventional circularly polarized radiation structure requires dual-port feeding, and the radiation structure of the radiation structure part is relatively complex, which is inconvenient in practical processing and use. In particular, when the array is assembled, the traditional circularly polarized radiation structure occupies a larger space, cannot be applied to places with small space, and has relatively complex feed structure and higher manufacturing cost. Disclosure of utility model The utility model aims to solve the technical problem of providing a broadband compact circular polarization probe with simple structure and low manufacturing cost. In order to solve the technical problems, the technical scheme includes that the broadband compact circular polarization probe comprises a feed part and a radiation part, wherein a standard waveguide channel is formed in the feed part, a parallel waveguide channel is formed in the radiation part, the standard waveguide channel is communicated with the parallel waveguide channel, the length of the parallel waveguide channel is smaller than one wavelength, and a slot is formed on the broadside of an outer side port of the parallel waveguide channel. The technical scheme has the beneficial effects that the parallel waveguide of the radiating part is reduced to be smaller than one wavelength, the wide side is provided with the slot, the electric field in the y direction can be enhanced by adjusting the slot depth and the slot width, and the electric field in the x direction is kept unchanged. Through the design, the circularly polarized probe is simple in structure, and can greatly reduce the space size and the use difficulty and reduce the actual processing and use cost in practical application and array. Drawings The utility model will be described in further detail with reference to the drawings and the detailed description. FIG. 1 is a schematic view of a first embodiment of the circularly polarized probe; FIG. 2 is a schematic view of a first embodiment of the circularly polarized probe; FIG. 3 is a schematic cross-sectional view of a first circularly polarized probe according to an embodiment of the utility model; FIG. 4 is a schematic structural view of a second circularly polarized probe according to an embodiment of the present utility model; FIG. 5 is a schematic structural view of a second circularly polarized probe according to an embodiment of the present utility model; FIG. 6 is a schematic cross-sectional view of a circularly polarized probe according to a second embodiment of the utility model; FIG. 7 is a schematic structural view of a third circularly polarized probe according to an embodiment of the present utility model; FIG. 8 is a schematic structural view of a third circularly polarized probe according to an embodiment of the present utility model; FIG. 9 is a schematic cross-sectional view of a third circularly polarized probe according to an embodiment of the utility model; FIG. 10 is a schematic structural view of a fourth circularly polarized probe according to an embodiment of the present utility model; FIG. 11 is a schematic structural view of a fourth circularly polarized probe according to an embodiment of the present utility model; FIG. 12 is a schematic cross-sectional view of a fourth circularly polarized probe according to an embodiment of the utility model; The device comprises 1 part of a power supply, 1-1 part of a flange main body, 1-2 parts of a rectangular boss connecting part, 1-3 parts of a transitional connecting part, 1-4 parts of a mounting hole, 1-5 parts of a positioning hole, 2 parts of a radiation part, 3 parts of a standard waveguide channel, 4 parts of a parallel waveguide channel, 5 parts of a slot, 6 parts of a standard waveguide interface, 7 parts of a positioning pin. Detailed Description The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the em