Device and method for improving amplitude-phase consistency of dual-channel receiver
A receiver and dual-channel technology, which is applied in the field of devices for improving the amplitude-phase consistency of dual-channel receivers, can solve the problem that the amplitude-phase consistency is difficult to meet the wide-temperature working requirements of radar, and achieve reduced noise figure and stable parameters , to ensure the effect of constant temperature effect
Pending Publication Date: 2022-04-12
中船鹏力(南京)大气海洋信息系统有限公司
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The two receiving channels are composed of two completely independent receivers. Although the design of the microwave components can make the amplitude and phase consistency of the receivers reach a high level, the nonlinear changes of the microwave devices with the change of the ambient temperature make the receiving The amplitude and phase consistency of the machine is still difficult to meet the wide temperature working requirements of the radar
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[0060] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific preferred embodiments.
[0061] In the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "left side", "right side", "upper", "lower" are based on the orientations or positional relationships shown in the accompanying drawings, and are only For the purpose of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, "first", "second" and the like do not represent components importance, and therefore should not be construed as limiting the invention. The specific dimensions used in this embodiment are only for illustrating the technical solution, and do not limit the protection scope of the present in...
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The invention discloses a device and method for improving amplitude-phase consistency of a dual-channel receiver. The device comprises a special-shaped flange waveguide, a constant temperature box, a temperature control assembly and a temperature measurement assembly. The dual-channel receiver body is arranged in a metal cavity of a thermotank and comprises a horizontal channel circuit, a vertical channel circuit and a local oscillator power divider. Each special-shaped flange waveguide comprises a metal waveguide tube, a metal flange and a heat insulation ring; the heat insulation ring is embedded in the metal flange facing the side of the shell, and the thickness of the heat insulation ring is not larger than 2 mm. The horizontal channel circuit and the vertical channel circuit are symmetrically arranged in the shell; the temperature control assembly comprises a temperature controller, a shell heating piece, a thermotank heating piece, a refrigeration piece and a heat conduction device. The temperature measuring assembly comprises a shell internal temperature sensor, a shell external temperature sensor, an external environment temperature sensor and a refrigeration sheet temperature sensor. According to the invention, the amplitude-phase consistency and stability between the two receiving channels can be ensured; and meanwhile, the device has the characteristics of small size and light weight and can be widely applied.
Description
technical field [0001] The invention relates to the field of radio frequency components, in particular to a device and method for improving the amplitude-phase consistency of a dual-channel receiver. Background technique [0002] Dual-polarization radar is a new type of weather radar. People can use dual-polarization radar to identify the phase state and composition of precipitation particles, quantitatively measure precipitation, and analyze the microphysical processes of clouds and precipitation. It is a crucial factor affecting the measurement performance of dual polarization radar. The two receiving channels are composed of two completely independent receivers. Although the design of the microwave components can make the amplitude and phase consistency of the receivers reach a high level, the nonlinear changes of the microwave devices with the change of the ambient temperature make the receiving It is still difficult to meet the wide temperature working requirements of ...
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IPC IPC(8): G01S7/40
Inventor 杜海霞蔡兆云施春荣陈超侯小宇周静艳张杰
Owner 中船鹏力(南京)大气海洋信息系统有限公司