Device for exciting centrally focused reflector antenna

Abstract

The invention relates to a arrangement for feeding a centrally focused reflector antenna, comprising a waveguide (1), a dielectric field transformer (2) arranged on said waveguide (1) and a mounting platform (3) for a series of modules (8) which is embodied on one end of the waveguide (1) The waveguide (1) is provided with a means for receiving the dielectric field transformer (2) which partially protrudes into the waveguide (1). In a preferred embodiment, a dielectric support (9) is provided in the vicinity of the dielectric field transformer (2). The middle of said support has a circular bore (12) whose diameter corresponds to the diameter of the dielectric fields transformer (2). One advantage of the invention is that the centrally focused reflector antennae can be excited in the focal point thereof in a field-optimum broadband manner. No mechanically displaced components are required as a result of the dielectric fields transformer. The inventive device can be produced in a cost-effective manner with high mechanical precision and little effort. It is characterized by high tolerance with respect to various environmental conditions such as temperature, humidity of the air and aggressive media.An arrangement for feeding a centrally focused reflector antenna includes a waveguide (1), a dielectric field transformer (2) arranged on the waveguide (1) and a mounting platform (3) for a series of modules (8) which is embodied on one end of the waveguide (1). The waveguide (1) is provided with an arrangement for receiving the dielectric field transformer (2) which partially protrudes into the waveguide (1). Preferably, a dielectric support (9) may be provided in the vicinity of the dielectric field transformer (2). The middle of the support has a circular bore (12) whose diameter corresponds to the diameter of the dielectric field transformer (2). The centrally focused reflector antenna can be excited in the focal point thereof in a field-optimum broadband manner.

Description

technical field

[0001] The invention relates to a device for exciting a centrally focused reflector antenna. Background technique

[0002] The main application fields of this device include communication technology for receiving high-frequency electromagnetic radiation sources from earth communication stations and circular satellite systems through communication stations, portable and mobile transmitting / receiving systems, as well as radiation sources for land mobile and air mobile , Point-to-point directional radio communication transmission or point-to-multipoint directional radio communication transmission using security, radar and non-contact sensing technology.

[0003] The excitation system of the existing device for exciting the centrally focused reflector antenna system is to install a horn with a groove on the waveguide, or install a planar widened waveguide member.

[0004] This excitation system mounts the reflector antenna as described at the focal point of the ...

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