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A front-end component, X-band technology, applied in the field of variable-polarization microwave front-end components in X-band, can solve the problems of complex microwave control network, inability to achieve 45-degree oblique polarization polarization, etc., to reduce component volume, increase support, reduce The effect of microwave loss
Inactive Publication Date: 2019-04-09
BEIJING INST OF RADIO MEASUREMENT
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[0003] Existing technical solutions cannot realize the function of 45-degree oblique polarization polarization, and the triple ferrite switch strategy using dual polarization will not meet the requirements, requiring a more complex microwave control network
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[0017] An X-band polarization-variable microwave front-end assembly according to the present invention will be described in detail below in conjunction with the accompanying drawings and embodiments. The examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.
[0018] An X-band variable polarization microwave front-end component, such as figure 1 As shown, including: cavity, ferrite switch junction K1, ferrite switch junction K2, ferrite switch junction K3, circulator H1, circulator H2, magic T, waveguide section L1, directional coupler O1, directional Coupler O2, the cavity is a closed waveguide; ferrite switch junction K1, ferrite switch junction K2, ferrite switch junction K3, circulator H1, circulator H2, magic T and waveguide section L1 pass through a straight waveguide or a bend The microwave network formed by the waveguide is set in the cavity; the magic T is connected with the ferrite switch junct...
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Abstract
The invention discloses an X-band variable-polarization microwave front-end assembly. The X-band variable-polarization microwave front-end assembly comprises a cavity, a ferrite switch junction K1, aferrite switch junction K2, a ferrite switch junction K3, a circulator H1, a circulator H2, a magic T and a waveguide segment L1, wherein the cavity is a closed waveguide, the ferrite switch junctionK1, the ferrite switch junction K2, the ferrite switch junction K3, the circulator H1, the circulator H2, the magic T and the waveguide segment L1 are arranged in the cavity by a microwave network formed from a straight waveguide or a bending waveguide, the magic T and the ferrite switch junction K1 and the ferrite switch junction K2 and the ferrite switch junction K3 are connected, the ferrite switch junction K2 is connected with the circulator H1, and the ferrite switch junction K3 is connected with the circulator H2. With the X-band variable-polarization microwave front-end assembly provided by the technical scheme, variable-polarization vibration is achieved; moreover, a plurality of microwave functional components are arranged in the integrated cavity to form the X-band variable-polarization microwave front-end assembly, the microwave loss is reduced, the assembly size is reduced, the reliability is improved, the cost is reduced, and the debugging link is reduced.
Description
technical field [0001] The invention belongs to the technical field of microwave devices, and in particular relates to an X-band variable polarization microwave front-end component. Background technique [0002] The current X-band weather radars are generally divided into vertical polarization polarization and horizontal polarization polarization. In order to improve the test accuracy and radar performance, the system requires not only the horizontal polarization, but also the 45-degree oblique polarization function. The 45-degree oblique polarization has the characteristics of both horizontal polarization and vertical polarization, so it has more powerful functions. In the prior art, a method for realizing vertical polarization and horizontal polarization is to use a double-polarization triple ferrite switch. Three ferrite switch junctions are cascaded and loaded to form a single-pole double-throw switch. The inlet is connected to the transmitter, and the outlet is respec...
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