A dual-polarized broadband weakly coupled feed array

A weak-coupling, dual-polarization technology, applied to antenna unit combinations with different polarization directions, electrical components, antennas, etc., can solve the problems of difficult low-noise amplifier connection, limit the reduction of system noise temperature, and use alone to achieve improvement Effect of asymmetry, improvement of irradiation efficiency, and reduction of radial size
CN102882009BActive Publication Date: 2015-10-07NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
Publication Date
2015-10-07

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Abstract

The invention discloses a dual-polarization broadband weak coupling feed source array and relates to a phase array feed source receiver in the radio astronomy field. The dual-polarization broadband weak coupling feed source array can be used in feed sources of reflector antennasin the field of communication, observing and control and monitoring. According to the distribution rules of a reflector antenna focal plane field, a hexagonal reflection back cavity vibrator is distributed in a hexagonal small-space distribution mode to form a feed source array, so that energy receiving is facilitated, sampling of a focal plane field distribution is met, and good broadband characteristics and weak array coupling can be achieved. The hexagonal reflection back cavity vibrator comprises a radiator, a coaxial feeder, a hexagonal reflection back cavity and a matching disc, wherein the reflection back cavity adopts a small hexagonal structure, and array forming is facilitated.
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Description

technical field

[0001] The invention relates to a dual-polarization wide-band weakly coupled feed source array used for radio telescope antennas in the field of radio astronomy, and is especially suitable for L-Ku frequency band radio telescope phased array feed source receivers as a dual-polarization, wide-band , The array feed front end with mutual coupling between weak array elements can also be applied to the feed of reflector antennas in the fields of communication, measurement and control, and radio monitoring. Background technique

[0002] With the development of radio astronomy technology, astronomers' demand for observation of cosmic radio sources continues to increase. In the case that the number of radio telescopes cannot be significantly increased, the use of multi-beam antenna technology can effectively increase the observation speed. For example, the Australian Parkes64m and Puerto Rico’s Arecibo305m radio telescopes are equipped with 13 beams and 7 beams respe...

Claims

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