Method of realizing high precision phase shifting of ferr ite phase shifting device

A ferrite and phase shifter technology, which is applied in waveguide devices, electrical components, circuits, etc., can solve the problems of difficult to achieve high-precision numerical control phase shifting, complex structure of phase shifters, difficulty in debugging and manufacturing, etc. , to achieve high-precision phase shifting, reduce manufacturing difficulty, and increase switching time
CN1794513AInactive Publication Date: 2006-06-28中国兵器工业第二〇六研究所
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
中国兵器工业第二〇六研究所
Publication Date
2006-06-28
Estimated Expiration
Not applicable · inactive patent

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Abstract

This invention relates to a method for realizing accurate phase shift by a ferrite shifter, which applies a numerical control mode combining a flux excitation and a saturated digital excitation to make the shifter to generate accurate shift including: dividing a ferrite loaded on a waveguide center along the direction of the waves into n sections and the n is greater or equals to 2, the first section of which applies a flux excitation mode, the rest n-1 sections apply a saturation digital mode then overlapping the shift values of them and the shifter carries out digital control shift according to the step volume of the flux excitation section in the sphere greater or equals to 360deg.
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Description

technical field

[0001] The invention belongs to the field of waveguide transmission lines, and in particular relates to a method for realizing high-precision phase shifting by a ferrite phase shifter, which is applied to improving the phase shifting accuracy of microwave / millimeter wave waveguide ferrite phase shifters. technical background

[0002] Compared with diode, MMIC and other types of phase shifters, phase shifters loaded with ferrite ring rods in waveguides in microwave high-frequency bands have absolute advantages in terms of insertion loss indicators, and the insertion loss of the latter is only 1 of the former. / 10 or so. The principle of the ferrite numerically controlled phase shifter is as follows: the ferrite in the phase shifter is remanently magnetized by pulse excitation current, and pulse currents in different directions or different amplitudes correspond to remanent magnetization in different directions or sizes. A change in the direction or magnitude ...

Claims

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