Planar waveguide weak coupling power divider

A planar waveguide and weak coupling technology, which is applied to waveguide devices, electrical components, connecting devices, etc., can solve the problems of poor accuracy of received signals, large signal dynamic range, and affecting calibration performance. performance, improve work performance, and remove the effects of dispersion

Active Publication Date: 2019-12-27
CNGC INST NO 206 OF CHINA ARMS IND GRP
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

The traditional phase-frequency scanning antenna system realizes active channel calibration by connecting a calibration power divider at the load end of the waveguide array. Due to the dispersion characteristics of the waveguide array and the attenuator in the calibration link, the radar operating frequency band The large dynamic range of the signal makes the accuracy of the received signal worse, affecting the calibration effect and radar performance

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  • Planar waveguide weak coupling power divider
  • Planar waveguide weak coupling power divider
  • Planar waveguide weak coupling power divider

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Embodiment Construction

[0023] Now in conjunction with embodiment, accompanying drawing, the present invention will be further described:

[0024] The invention adopts a layered waveguide structure to design a power splitter, and through layering the waveguide, combining coupling holes and waveguide flanges to form a planar waveguide weak coupling power splitter, the function of microwave signal distribution is realized. The composition structure of the planar waveguide weak coupling power divider includes: main waveguide, branch waveguide, waveguide flange, coupling hole and choke groove. The main waveguide and the branch waveguides are processed in one piece, the broad side of the main waveguide is connected to the narrow side of the branch waveguide, they share the same waveguide wall, and a coupling hole is opened on the common waveguide wall to realize coupling transmission of microwave signals.

[0025] The main waveguide of the present invention adopts a cover-opening processing method, and th...

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Abstract

The invention relates to a planar waveguide weak coupling power divider. The power divider comprises a main waveguide, a branch waveguide, a waveguide flange, a coupling hole and a choke groove, wherein the main waveguide and the branch waveguide are integrally machined, a wide edge of the main waveguide and a narrow edge of the branch waveguide are connected and share the same waveguide wall, anda coupling hole is formed in the common waveguide wall to achieve microwave signal coupling transmission. The power divider is advantaged in that an active channel calibration link is simplified, a problem that a dynamic range of received signals is large due to the fact that the active channel calibration link comprises a dispersion device is solved, the power divider has advantages of a frequency scanning antenna, the active channel calibration effect is guaranteed, radar working performance is improved, and the power divider can be widely applied and popularized in engineering practice.

Description

technical field [0001] The invention belongs to the technical field of antennas, and relates to a planar waveguide weak coupling power splitter, which is mainly used in a planar waveguide phase-frequency scanning antenna system, and can also be applied to a microwave system requiring vertical transmission of radio frequency signals. Background technique [0002] Phase-frequency scanning antenna is a two-dimensional electronic scanning antenna system, which is a collective name for one-dimensional phase-controlled scanning and one-dimensional frequency scanning. Phased scanning is to achieve beam scanning by changing the phase of the phase shifter in the antenna array, and frequency scanning is to change the "in-array phase" between antenna elements by changing the frequency of radar signals. An electrical scanning method that changes the beam pointing. Because of its convenient implementation, low cost, and fast beam switching speed, the electronic scanning antenna has been ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P5/12H01Q23/00
CPCH01P5/12H01Q23/00
Inventor 王果宏付原姜世波平轶君田江
Owner CNGC INST NO 206 OF CHINA ARMS IND GRP
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