Main-focus wide-field-angle horn feed source of radio astronomical telescope

Main-focus wide-field-angle horn feed source of radio astronomical telescope

The invention relates to a main-focus wide-field-angle horn feed source of a radio telescope. The horn feed source adopts a corrugated structure, corrugated structures which are equally arranged and are in the same direction as a circular waveguide are loaded outside the circular waveguide, each loa...

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Hauptverfasser: NING YUNWEI, CAO LIANG, DUAN XUEFENG, WANG KAI, MA JUN, YAN HAO, CHEN MAOZHENG
Format: Patent
Sprache:chi ; eng
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ANTENNAS, i.e. RADIO AERIALS
BASIC ELECTRIC ELEMENTS
ELECTRICITY
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creator NING YUNWEI
CAO LIANG
DUAN XUEFENG
WANG KAI
MA JUN
YAN HAO
CHEN MAOZHENG
description The invention relates to a main-focus wide-field-angle horn feed source of a radio telescope. The horn feed source adopts a corrugated structure, corrugated structures which are equally arranged and are in the same direction as a circular waveguide are loaded outside the circular waveguide, each loaded corrugated structure is composed of loaded grooves and loaded rings, the number of the loaded rings is 1-15, the number of the loaded grooves is 1-15, and the working frequency of the feed source is 22 GHz-34 GHz. The feed source is used for main focus irradiation of a 2-meter reflector antenna, and under the wide field angle of 112 degrees, the feed source has the characteristics of wide working frequency band, low standing wave, low side lobe level, small cross polarization, high phase center stability, axial symmetry of a directional diagram and wide beam irradiation capability, and is easy to integrally process and form at one time; and the feed source is used for testing the atmospheric opacity of the radi
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subjects ANTENNAS, i.e. RADIO AERIALS
BASIC ELECTRIC ELEMENTS
ELECTRICITY
title Main-focus wide-field-angle horn feed source of radio astronomical telescope
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