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Waveguide feed source and antenna

A waveguide feed and antenna technology, which is applied to antennas, waveguide horns, electrical components, etc., can solve the problem that the waveguide feed cannot meet the design requirements

Active Publication Date: 2015-03-11
KUANG CHI INST OF ADVANCED TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the waveguide feed includes various feeds. For example, the waveguide feed is generally used in the reflector antenna, but the electromagnetic beam radiated by the general waveguide feed is usually about 70 degrees. Therefore, in the antenna design, the general The waveguide feed cannot meet the design requirements

Method used

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  • Waveguide feed source and antenna
  • Waveguide feed source and antenna
  • Waveguide feed source and antenna

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with relevant drawings and specific embodiments:

[0025] see figure 1 , a schematic side view of an embodiment of the antenna of the present invention. The antenna 10 includes a waveguide feed 12 and a reflection unit 11 for reflecting electromagnetic waves radiated by the waveguide feed 12 . In this embodiment, the reflective unit 11 is a curved reflective panel made of metal material.

[0026] Please also refer to figure 2 The waveguide feed 12 includes a waveguide 121 with one end open and one end closed, an electromagnetic composite material unit 122 and an electromagnetic radiation unit 123 disposed in the waveguide 121 . In this embodiment, the waveguide 121 is a rectangular waveguide and a through hole 102 is provided on one side of the waveguide 121, and one end of the electromagnetic radiation unit 123 passes through the through hole 102 and extends into the waveguide 121. The radiating ...

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Abstract

The invention discloses a waveguide feed source, which comprises a waveguide of which one end is open and the other end is closed, an electromagnetic composite material unit arranged in the waveguide and an electromagnetic radiation unit, wherein the electromagnetic composite material unit is arranged between the electromagnetic radiation unit and the closed end of the waveguide; the electromagnetic radiation unit receives an electric signal and converts the electric signal into an electromagnetic wave; the electromagnetic composite material unit comprises at least one electromagnetic composite material sheet layer; each electromagnetic composite material sheet layer comprises a sheet type substrate and a plurality of artificial micro structures arranged on the sheet type substrate; and the refractive index of each electromagnetic composite material sheet layer is gradually increased from the middle region to two ends. The electromagnetic composite material unit with specific refractive index distribution is filled or arranged in the waveguide, so that the electromagnetic wave generated by the electromagnetic radiation unit can be diffused, and an angle of the radiation range of an electromagnetic wave beam radiated from a waveguide port is more than 100 degrees; and therefore, the radiation range of the electromagnetic wave beam of the waveguide feed source meets a design requirement of an antenna. The invention also provides the antenna applying the waveguide feed source.

Description

technical field [0001] The invention relates to the field of antenna feed, in particular to a waveguide feed and an antenna using the waveguide feed. Background technique [0002] The feed source is the heart of the antenna. It is used as the primary radiator of the high-gain concentrated antenna, providing effective illumination for the reflector (parabolic reflector) antenna, and sorting out the electromagnetic waves reflected by the reflector to make its polarization direction Consistent and performing impedance transformation, the electromagnetic wave radiated by the waveguide feed source is scattered on the reflective panel. The electromagnetic waves are then propagated into atmospheric space through the reflective surface. Among them, the waveguide feed includes various feeds. For example, the waveguide feed is generally used in the reflector antenna, but the electromagnetic beam radiated by the general waveguide feed is usually about 70 degrees. Therefore, in the ant...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q13/02H01Q13/08H01Q15/02H01Q19/08H01Q19/10
Inventor 刘若鹏徐冠雄
Owner KUANG CHI INST OF ADVANCED TECH