S/X double-band circularly polarization feed source

A circularly polarized, dual-band technology, used in devices, electrical components, waveguide horns, etc. that make the antenna work in different bands at the same time, which can solve problems such as difficulty in high gain performance and difficulty in meeting application requirements.

Active Publication Date: 2011-07-27
XIAN INSTITUE OF SPACE RADIO TECH
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Problems solved by technology

The existing public or known S/X dual-band circularly polarized feed sources are difficult to meet the application requirements, and i

Method used

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  • S/X double-band circularly polarization feed source
  • S/X double-band circularly polarization feed source
  • S/X double-band circularly polarization feed source

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Embodiment Construction

[0040] The present invention adopts high gain to the dual-frequency coaxial feed source, and the structure is as follows figure 1 , 2 , 3, including S-band speaker 1, caliber conversion section 2, S-band coupling hub 3, S-band circular polarization forming network, X-band speaker 4, X-band circular polarizer 5, cable assembly and waveguide assembly, the same The outer cavity of the axial cavity is composed of the outer cavity of the S-band horn 1, the aperture conversion section 2 and the S-band coupling hub 3, and the inner cavity of the coaxial cavity is composed of the X-band horn 4 and the inner cavity of the S-band coupling hub 3.

[0041] The high-gain directional antenna is a compact double-reflector form, which has the advantages of high radiation efficiency and so on. High-gain directional antennas need to use S / X dual-band feeds with higher gain for excitation to achieve a reasonable edge irradiation level of the antenna. For the design of S / X dual-band feeds, the ...

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Abstract

The invention discloses an S/X double-band circularly polarization feed source which adopts a coaxial cavity structure and comprises an S frequency band horn, a caliber transforming section, an S frequency band coupling hub, an S frequency band circularly polarization forming network, an X frequency band horn, an X frequency band circular polarizer, a cable component and a waveguide component. The outer cavity of a coaxial cavity comprises the S frequency band horn, the caliber transforming section and the outer cavity of the S frequency band coupling hub, and the inner cavity of the coaxial cavity comprises the X frequency band horn and the inner cavity of the S frequency band coupling hub. The S/X double-band circularly polarization feed source adopts a coaxial feeding source design scheme, the coaxial cavity realizes the radicalization of S frequency band circularly polarization electromagnetic wave, and the X frequency band multimode horn embedded in an inner core of the coaxial cavity structure to be as the feed source realizes the radicalization of X frequency band circularly polarization electromagnetic wave; and according to the design thought of the high-gain S/X double-band circularly polarization feed source, by performing special design aiming at high gain on the S frequency band coupling hub, and smartly combining X feed source design to perform the integrated design of the feed source, the S/X double-band circularly polarization feed source becomes a novel high-gain S/X double-band circularly polarization feed source which covers deep space detection, observation and control communication application frequency bands, and has good radiation property.

Description

technical field [0001] The present invention relates to a high-gain (S frequency band is about 16dBi, X frequency band is about 18dBi) S / X dual-band circularly polarized feed source, in particular to a high-gain design method for a coaxial dual-frequency feed source, which belongs to antenna technology field. Background technique [0002] With the continuous development of the application of deep space exploration technology, the exploration of related space science continues to expand and deepen, and the flight distance of the aircraft is getting farther and farther. This requires the measurement and control communication capabilities of the aircraft to be improved. Only the S-band measurement, control and communication are implemented. It has been unable to meet the increasingly complex requirements of deep space exploration missions, and the development of X-band deep space measurement, control and communication technology is a way to deal with this problem. Because the ...

Claims

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Application Information

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IPC IPC(8): H01Q13/02H01Q5/00
Inventor 张明涛何佳欢
Owner XIAN INSTITUE OF SPACE RADIO TECH
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