Multi-channel gyromagnetic filter magnetic circuit

A filter, multi-channel technology, applied in the direction of transformer/inductor core, circuit, transformer/inductor components, etc., can solve the problems of small current bearing capacity, small compensation coil frequency tuning and compensation range, and poor magnetic field uniformity. , to achieve the effect of improving the frequency compensation capability, increasing the compensation frequency modulation range, and reducing the control accuracy

Pending Publication Date: 2020-09-18
中国电子科技集团公司第九研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1) High manufacturing cost
[0006] The manufacturing precision of the magnetic circuit and the resonant circuit and the consistency control of the resonant circuit parameters are high in cost and low in production efficiency;
[0007] 2) The uniformity of the magnetic field of the air-core compensation coil is poor
[0008] The uniformity of the magnetic field generated in the air-core coil is poor, which is easy to excite the high-order magnetostatic mode of the resonant circuit, and affects the frequency consistency of the resonators at all levels. Therefore, the air-core compensation coil is only suitable for filters with few resonant stages;
[0009] 3) The hollow compensation coil frequency tuning co

Method used

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  • Multi-channel gyromagnetic filter magnetic circuit
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  • Multi-channel gyromagnetic filter magnetic circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Example 1: X-Ku band rectangular magnetic pole four-channel integrated magnetic circuit

[0039] see figure 2 with 3 , X-Ku band rectangular magnetic pole four-channel integrated magnetic circuit: including lower magnetic circuit 1, upper magnetic circuit 2, magnetic pole column 3 of upper and lower magnetic circuits, main coil 4, compensation coil 5, coil installation slot 6 and multi-channel resonance circuit 7. The coil installation groove 6 is located at the end faces of the magnetic pole posts 3 of the upper and lower magnetic circuits and is vertical to the end faces. The end faces of the magnetic pole posts 3 of the upper and lower magnetic circuits are respectively divided into four parts, and the compensation coil 5 is set in the coil installation groove 6. The number of compensation coils 5 is 3. In the present embodiment, the 3 compensation coils 5 are respectively drawn out and then connected to respective current exciters, so that independent frequency co...

Embodiment 2

[0043] Embodiment 2: S-C band cylindrical magnetic pole four-channel integrated magnetic circuit

[0044] see figure 2 , Figure 4 , S-C band rectangular magnetic pole four-channel integrated magnetic circuit: including a lower magnetic circuit 1, an upper magnetic circuit 2, a magnetic pole 3 of the upper and lower magnetic circuits, a main coil 4, a compensation coil 5, a coil installation slot 6 and a multi-channel resonance circuit 7; The coil mounting groove 6 is located at the end face of the magnetic pole post 3 of the upper and lower magnetic circuit and is vertical to the end face, and the end face of the magnetic pole post 3 of the upper and lower magnetic circuit is divided into four parts respectively, and the compensation coil 5 is set in the coil mounting groove 6 to compensate The number of coils 5 is 4. In this embodiment, the 4 compensation coils 5 are respectively drawn out and connected to respective current actuators;

[0045] The four-way resonant circu...

Embodiment 3

[0046] Embodiment 3: S-C band rectangular magnetic pole column two-channel different-frequency tracking magnetic circuit

[0047] see figure 2 , Figure 5 , S-C band rectangular magnetic pole two-channel different-frequency tracking magnetic circuit: including lower magnetic circuit 1, upper magnetic circuit 2, magnetic pole column 3 of the upper and lower magnetic circuit, main coil 4, compensation coil 5, coil installation slot 6 and two resonant circuits 7. The coil installation groove 6 is located at the end faces of the magnetic pole posts 3 of the upper and lower magnetic circuits and is vertical to the end faces, and the end faces of the magnetic pole posts 3 of the upper and lower magnetic circuits are respectively divided into two parts, and the compensation coil 5 is set in the coil installation groove 6, The number of compensation coils 5 is two, which are respectively located in the coil installation grooves of the same partition of the upper and lower magnetic p...

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PUM

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Abstract

The invention discloses a multi-channel gyromagnetic filter magnetic circuit, and belongs to the technical field of magnetic device integration. The multi-channel gyromagnetic filter magnetic circuitcomprises a lower magnetic circuit (1), an upper magnetic circuit (2), magnetic pole columns (3) of the upper and lower magnetic circuits, a main coil (4), compensation coils (5), coil mounting grooves (6) and a multi-path resonance circuit (7), wherein the coil mounting grooves (6) are located in the end faces of the upper and lower magnetic pole columns (3) and are perpendicular to the end faces, the end faces of the magnetic pole columns (3) are equally divided into filter channel integration number n, the compensation coils (5) are sleeved with the coil mounting grooves (6), and the numberof the compensation coils (5) is not less than n-1. According to the invention, the magnetic circuit can achieve the frequency compensation capability of 0-200 MHz in the P-Ku waveband, the filter resonance circuit stage number is not limited, the applicability is wide, multi-channel integration of all gyromagnetic filters can be covered, power consumption of the device is reduced, the compensation frequency modulation range is controlled and the reliability is improved, and the manufacturing cost of the filter product is favorably controlled and the production efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of magnetic device integration, in particular to a multi-channel gyromagnetic filter magnetic circuit. Background technique [0002] The basic structure of the gyromagnetic filter is composed of a resonant circuit and a magnetic circuit. The magnetic circuit adopts a self-shielding compact structure, and the magnetic poles of the upper and lower magnetic circuits form a working air gap. l g , the resonant circuit is placed in the working air gap l g Inside, the magnetic circuit coil passes through the current in the working air gap l g Generate a uniform magnetic field inside H e (A uniform and consistent magnetic field is the key to the consistent operating frequency of the resonators at all levels in the resonant circuit and to avoid the excitation of high-order magnetostatic modes). After the resonant circuit satisfies the resonant condition, the resonant frequency f 0 working air gap field H e...

Claims

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Application Information

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IPC IPC(8): H01F27/30H01F27/24H01F27/38
CPCH01F27/24H01F27/306H01F27/38
Inventor 张平川蓝江河燕志刚何志强王大勇张菊燕
Owner 中国电子科技集团公司第九研究所
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