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A multi-band fully polarized antenna feed device with common aperture multiplexing

An antenna feed and multi-band technology, applied in the field of microwave detection, can solve the problem of small insect coverage

Active Publication Date: 2019-01-04
BEIJING INSTITUTE OF TECHNOLOGYGY
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Problems solved by technology

However, due to the wide range of insect body size changes, and the wavelength of radar signals is closely related to the body length of insects suitable for detection, the coverage of insect body sizes that traditional insect radars can detect is relatively small.

Method used

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  • A multi-band fully polarized antenna feed device with common aperture multiplexing
  • A multi-band fully polarized antenna feed device with common aperture multiplexing
  • A multi-band fully polarized antenna feed device with common aperture multiplexing

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Embodiment

[0047] In order to verify the effectiveness of the above-mentioned three-band antenna feed design, the electromagnetic simulation software CST is used to simulate the parabolic antenna that applies the design feed. The design parameters of the feed are as follows Figure 5 ~ Figure 7 Specifically, the outer wall of the square waveguide is 11 cm wide, the inner side of the bottom of the four-ridge horn is 17 cm long, the inner edge of the outer mouth of the four-ridge horn is 35 cm long, the bottom width of the four-ridge horn is 3.8 cm, and the width of the ridge peak is 0.97 cm. The side length is 28 cm, the outer length of the bottom of the four-ridge horn is 18 cm, the opening arc is 25 degrees, and the height of the four-ridge horn is 50 cm. , The outer wall of the four-ridge horn is 36.03 cm long. Considering that (the designed feed is a part of the parabolic antenna, and the radar is actually used with the feed and the reflector), the additional reflector with a diamete...

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Abstract

The invention discloses a common-caliber multiplexing multi-band full-polarization antenna feed source device. A quadruple-ridged horn and a square waveguide are adopted, so that the common-caliber multiplexing multi-band full-polarization antenna feed source device can simultaneously work on an X band, a Ka band and a Ku band for carrying out signal transmitting and receiving work through improvement of the structure of the quadruple-ridged horn and the square waveguide. Furthermore, the quadruple-ridged horn is adopted, so that the dual-linear polarization requirements are achieved. The square waveguide can be adopted as multiple channels to achieve a monopulse radar.

Description

technical field [0001] The invention relates to the technical field of microwave detection, in particular to a multi-band fully polarized antenna feed device with common aperture multiplexing. Background technique [0002] Traditional insect radar works in a single-band mode, generally working in X-band or Ka-band. However, due to the large variation range of insect body size, and the wavelength of radar signal is closely related to the body length of insects suitable for detection, the coverage of insect body size that can be detected by traditional insect radar is relatively small. In order to be able to detect insects in a larger size range, the present invention proposes an insect radar system capable of simultaneously working in the X-band, Ka-band and Ku-band. Contents of the invention [0003] In view of this, the present invention provides a multi-band fully polarized antenna feed device with common aperture multiplexing, which can meet the functional requirements...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q5/55H01Q5/28
CPCH01Q5/28H01Q5/55
Inventor 胡程曾涛龙腾刘长江王锐于冲
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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