CN105186074A - YIG electrically tunable filter structure with position adjustable microwave resonant loop - Google Patents
YIG electrically tunable filter structure with position adjustable microwave resonant loop Download PDFInfo
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- CN105186074A CN105186074A CN201510454891.2A CN201510454891A CN105186074A CN 105186074 A CN105186074 A CN 105186074A CN 201510454891 A CN201510454891 A CN 201510454891A CN 105186074 A CN105186074 A CN 105186074A
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- tunable filter
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- filter structure
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Abstract
The invention relates to the technical field of millimeter wave broadband spectral analysis, in particular to a YIG electrically tunable filter structure with a position adjustable microwave resonant loop. The YIG electrically tunable filter structure comprises a magnetic circuit and the microwave resonant loop, wherein the microwave resonant loop comprises a groove used for assembling a machine head; the bottom surface of the groove is in a round-edge rectangle shape, so that the machine head can be adjusted along direction vertical to input and output; two tuning screws are arranged in the direction vertical to input and output; the top part of the machine head is circular; and the round-edge rectangle of the bottom surface of the groove is composed of two directly-facing semicircles and a rectangle taking two diameters of the two semicircles as two opposite sides. The technical scheme of the YIG electrically tunable filter structure has the beneficial effect that: by adopting the YIG electrically tunable filter structure with the position adjustable microwave resonant loop, the optimal magnetic field position can be found through changing position of the microwave resonant loop, the in-band waveform is more smooth, and the finished product ratio is increased.
Description
Technical field
The present invention relates to millimeter wave broadband spectrum analysis technique field, be specifically related to the YIG electrically tunable filter structure that a kind of microwave resonance circuit positions is adjustable.
Background technology
Along with the development of microwave and millimeter wave technology, the demand of millimeter wave broadband spectrum analyzer grows with each passing day.
YIG electrically tunable filter has tuning bandwidth, the linearity is good, reliability is high, the excellent feature such as selectivity and spectral purity, is widely used in the precision instrument such as wide-band frequency spectrograph, receiver.As the critical component in instrument, its performance is directly connected to the performance index of complete machine.
YIG electrically tunable filter is formed primarily of two parts: microwave resonance loop and magnetic circuit.Traditional microwave resonance loop is as shown in Figure 1: in order to obtain sufficiently high magnetic field intensity and enough large uniform magnetic field, head selects circular platform type head usually, the area of magnetic pole is greater than the region at resonator place, and should reduce the air gap between upper lower magnetic pole as far as possible.Therefore, need the groove opening a circular platform type in the microwave resonance loop shown in Fig. 1, place magnetic pole head.Fig. 2 is the installation diagram of microwave resonance loop in magnetic circuit, and this figure is the sectional arrangement drawing of Fig. 1 in magnetic circuit, and as can be seen from this figure, the circular platform type groove in traditional microwave resonance loop and magnetic pole head fit tightly, and microwave resonance loop can not move forward and backward.
Due to the error of processing, assembling and the reason such as difference of material mixture ratio, the magnetic field in the Magnetic field inhomogeneity of the position at resonator place and other place may be caused more even.Adopt traditional microwave resonance loop, the position of resonant tank in magnetic circuit can not be regulated, find best operating fields, cause the resonance frequency difference to some extent between resonator, rounder and more smooth waveform can not be formed; If magnetic circuit mismachining tolerance is comparatively large, causes magnetic circuit not use, add cost.
Summary of the invention
The object of this invention is to provide the YIG electrically tunable filter structure that a kind of microwave resonance circuit positions is adjustable, can not regulate relative to the position of magnetic circuit to solve microwave resonance loop in YIG electrically tunable filter, to such an extent as to the Magnetic field inhomogeneity at resonator position place, and field homogeneity part with less than problem, thus improve filter curve, improve rate of finished products.
For reaching above-mentioned purpose, embodiments provide the YIG electrically tunable filter structure that a kind of microwave resonance circuit positions is adjustable, comprise magnetic circuit and microwave resonance loop, it is characterized in that, shown microwave resonance loop comprises a groove, for assembling with head;
The bottom surface of described groove is round edge rectangle, adjusts along in the direction perpendicular to input, output to make head.
The described direction perpendicular to input, output is provided with two tuning screws.
Wherein, the top of described head is circular.
Wherein, the round edge rectangle of the bottom surface of described groove by just right two semicircles, and forms with the rectangle that two of these two semicircles diameters are two opposite side; This two and half diameter of a circle is identical with the diameter of the top circular of described head; The diameter parallel of these two semicircles is in the direction of input, output.
Technique scheme has following beneficial effect:
Adopt the YIG electrically tunable filter of microwave resonator loop structure proposed by the invention, can be found best magnetic field position by the position changing microwave resonance loop, in band, waveform is rounder and more smooth, improves rate of finished products.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is traditional microwave resonance circuit diagram;
Fig. 2 is microwave resonance loop assembling schematic diagram;
Fig. 3 is the structural representation in microwave resonance loop of the present invention;
Fig. 4 is the assembling schematic diagram in microwave resonance loop of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment one:
Fig. 3 is the structural representation in microwave resonance loop of the present invention, Fig. 4 is the assembling schematic diagram in microwave resonance loop of the present invention, as shown in Figure 3 and Figure 4, embodiments provide the YIG electrically tunable filter structure that a kind of microwave resonance circuit positions is adjustable, comprise magnetic circuit 201 and microwave resonance loop 202, it is characterized in that, shown microwave resonance loop 202 comprises a groove 2021, for assembling with head;
The bottom surface of described groove 2021 is round edge rectangle, can adjust to make described microwave resonance loop along the direction perpendicular to input, output.
The described direction perpendicular to input, output is provided with two tuning screws 203, for regulating described microwave resonance loop to adjust in the direction in which, to find suitable externally-applied magnetic field.
Wherein, the top of described head is circular.
Wherein, the round edge rectangle of the bottom surface of described groove by just right two semicircles, and forms with the rectangle that two of these two semicircles diameters are two opposite side; This two and half diameter of a circle is identical with the diameter of the top circular of described head; The diameter parallel of these two semicircles is in the direction of input, output.
Technique scheme has following beneficial effect:
Adopt the YIG electrically tunable filter of microwave resonator loop structure proposed by the invention, can be found best magnetic field position by the position changing microwave resonance loop, in band, waveform is rounder and more smooth, improves rate of finished products.
Those skilled in the art can also recognize the various illustrative components, blocks (illustrativelogicalblock) that the embodiment of the present invention is listed, unit, and step can pass through electronic hardware, computer software, or both combinations realize.For the replaceability (interchangeability) of clear displaying hardware and software, above-mentioned various illustrative components (illustrativecomponents), unit and step have universally described their function.Such function is the designing requirement realizing depending on specific application and whole system by hardware or software.Those skilled in the art for often kind of specifically application, can use the function described in the realization of various method, but this realization can should not be understood to the scope exceeding embodiment of the present invention protection.
Above-described embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only the specific embodiment of the present invention; the protection range be not intended to limit the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. the YIG electrically tunable filter structure that microwave resonance circuit positions is adjustable, comprises magnetic circuit and microwave resonance loop, it is characterized in that, shown microwave resonance loop comprises a groove, for assembling with head;
The bottom surface of described groove is round edge rectangle, adjusts along in the direction perpendicular to input, output to make head.
2. filter construction according to claim 1, is characterized in that, also comprises:
The described direction perpendicular to input, output is provided with two tuning screws.
3. filter construction according to claim 1, is characterized in that, the top of described head is circular.
4. filter construction according to claim 3, is characterized in that, the round edge rectangle of the bottom surface of described groove by just right two semicircles, and forms with the rectangle that two of these two semicircles diameters are two opposite side; This two and half diameter of a circle is identical with the diameter of the top circular of described head; The diameter parallel of these two semicircles is in the direction of input, output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510454891.2A CN105186074B (en) | 2015-07-29 | 2015-07-29 | A kind of adjustable YIG electrically tunable filters structure of microwave resonance circuit positions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510454891.2A CN105186074B (en) | 2015-07-29 | 2015-07-29 | A kind of adjustable YIG electrically tunable filters structure of microwave resonance circuit positions |
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| Publication Number | Publication Date |
|---|---|
| CN105186074A true CN105186074A (en) | 2015-12-23 |
| CN105186074B CN105186074B (en) | 2018-08-14 |
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| CN201510454891.2A Active CN105186074B (en) | 2015-07-29 | 2015-07-29 | A kind of adjustable YIG electrically tunable filters structure of microwave resonance circuit positions |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107181029A (en) * | 2017-05-27 | 2017-09-19 | 中国电子科技集团公司第四十研究所 | A kind of wide-band double-tuned YIG-filter quickly tuned |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201753428U (en) * | 2010-08-10 | 2011-03-02 | 巩文刚 | Road combined material stacking forming device |
| CN103281049A (en) * | 2013-05-30 | 2013-09-04 | 中国电子科技集团公司第四十一研究所 | Wide band YIG electrically tunable filter |
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2015
- 2015-07-29 CN CN201510454891.2A patent/CN105186074B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201753428U (en) * | 2010-08-10 | 2011-03-02 | 巩文刚 | Road combined material stacking forming device |
| CN103281049A (en) * | 2013-05-30 | 2013-09-04 | 中国电子科技集团公司第四十一研究所 | Wide band YIG electrically tunable filter |
Non-Patent Citations (1)
| Title |
|---|
| X. YANG, J. WU, S. BEGUHN, T. NAN, Y. GAO, Z. ZHOU, AND N. X. SU: "Tunable Bandpass Filter Using Partially Magnetized Ferrites With High Power Handling Capability", 《IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107181029A (en) * | 2017-05-27 | 2017-09-19 | 中国电子科技集团公司第四十研究所 | A kind of wide-band double-tuned YIG-filter quickly tuned |
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| CN105186074B (en) | 2018-08-14 |
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