CN111755788A - Circulator - Google Patents
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- CN111755788A CN111755788A CN202010624755.4A CN202010624755A CN111755788A CN 111755788 A CN111755788 A CN 111755788A CN 202010624755 A CN202010624755 A CN 202010624755A CN 111755788 A CN111755788 A CN 111755788A
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- ferrite
- circulator
- permanent magnet
- impedance matching
- cavity
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/32—Non-reciprocal transmission devices
- H01P1/38—Circulators
- H01P1/383—Junction circulators, e.g. Y-circulators
- H01P1/39—Hollow waveguide circulators
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/30—Auxiliary devices for compensation of, or protection against, temperature or moisture effects ; for improving power handling capability
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Abstract
The present invention provides an circulator, comprising: the electromagnetic wave generating device comprises a cavity, an inner conductor for conducting electromagnetic waves, a first ferrite for conducting electromagnetic waves, a second ferrite for conducting electromagnetic waves, a first permanent magnet for generating a polarized magnetic field and a second permanent magnet for generating a polarized magnetic field; the first permanent magnet, the first ferrite, the inner conductor, the second ferrite and the second permanent magnet are sequentially arranged in the cavity in an overlapping mode. The ferrite and the permanent magnet are overlapped on the two sides of the inner conductor, so that the space of the circulator is reduced, the space occupancy rate of the circulator is reduced, and the circulator is miniaturized. When electromagnetic waves are transmitted through the inner conductor and the ferrite by adopting a mode of respectively arranging the upper ferrite and the lower ferrite on the inner conductor, a gyromagnetic effect is formed under the condition of external polarized magnetic fields generated by the upper permanent magnet and the lower permanent magnet, and the electromagnetic waves are transmitted along a specific direction.
Description
Technical Field
The invention relates to a microwave component, in particular to a circulator.
Background
Isolators and circulators are important in microwave systems because of their non-reciprocal nature, preventing back reflection, interference and feedback during signal transmission. The application range is very wide, and different types of devices exist in the range of 100MHz to 110 GHz. However, under the condition of ultralow frequency, when the meter wave band f is less than or equal to 200MHz, because the size of the device has a direct proportional relation with the wavelength, and meanwhile, the device meets the requirement of high power, the miniaturization design is difficult to carry out in the prior art.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide an circulator, which includes: the electromagnetic wave generating device comprises a cavity, an inner conductor for conducting electromagnetic waves, a first ferrite for conducting electromagnetic waves, a second ferrite for conducting electromagnetic waves, a first permanent magnet for generating a polarized magnetic field and a second permanent magnet for generating a polarized magnetic field; the first permanent magnet, the first ferrite, the inner conductor, the second ferrite and the second permanent magnet are sequentially arranged in the cavity in an overlapping mode.
The invention has the beneficial effects that: the ferrite and the permanent magnet are overlapped on the two sides of the inner conductor, so that the space of the circulator is reduced, the space occupancy rate of the circulator is reduced, and the circulator is miniaturized. When electromagnetic waves are transmitted through the inner conductor and the ferrite by adopting a mode of respectively arranging the upper ferrite and the lower ferrite on the inner conductor, a gyromagnetic effect is formed under the condition of external polarized magnetic fields generated by the upper permanent magnet and the lower permanent magnet, and the electromagnetic waves are transmitted along a specific direction.
Further, the inner conductor includes: the three harmonic oscillators and the three impedance matching lines are arranged on the central junction, the three harmonic oscillators and the three impedance matching lines are evenly distributed on the surface of the same side of the central junction by taking the circle center of the central junction as the center, the harmonic oscillators and the impedance matching lines are arranged at intervals, and each impedance matching line forms a geometric figure.
The beneficial effect of adopting the further scheme is that: the three harmonic oscillators are arranged on the central junction respectively, the length of the harmonic oscillator in the inner conductor is lengthened, the resonant frequency is effectively reduced, and the overall size is not increased while the harmonic oscillator is lengthened.
Furthermore, two ends of the harmonic oscillator are connected with the impedance matching lines, the middle of the impedance matching lines are respectively in a mirror image spiral surrounding non-intersecting pattern towards two sides, and fixed intervals are arranged among the impedance matching lines in the pattern.
The beneficial effect of adopting the further scheme is that: the harmonic oscillator is of a mushroom-shaped structure, the length of the inner conductor harmonic oscillator is prolonged, the resonant frequency can be effectively reduced, the mushroom-shaped harmonic oscillator is adopted, the mushroom edge is recycled inwards, and the overall size is not increased while the harmonic oscillator is prolonged.
Furthermore, the number of the harmonic oscillators and the number of the impedance matching lines are three, and an included angle between any two harmonic oscillators or any two impedance matching lines is 120 degrees.
The beneficial effect of adopting the further scheme is that: the harmonic oscillators and the impedance matching lines are arranged along the radial direction of the central junction, the included angle between every two adjacent harmonic oscillators and the included angle between every two adjacent impedance matching lines are 120 degrees, and the space of the inner conductor is reduced and the space occupancy rate of the inner conductor is reduced by designing the combined structure of the harmonic oscillators and the impedance matching lines.
Further, the inner conductor further includes: the three port lead wires are connected with the three impedance matching lines in a one-to-one correspondence mode, three clamping grooves used for installing the port lead wires are formed in the side wall of the cavity, and the three port lead wires are arranged in the clamping grooves in a one-to-one correspondence mode.
The beneficial effect of adopting the further scheme is that: the arrangement of the three port lead wires and the clamping groove facilitates the port lead wires to extend out of the cavity from the inside of the cavity through the clamping groove so as to be connected with other devices when the device is used.
Further, still include: the first ferrite is in a circular plate-shaped structure and is formed by splicing a plurality of fan-shaped ferrite pieces, the dielectric ring is sleeved on the circumferential side walls of the fan-shaped ferrite pieces, and the second ferrite is the same as the first ferrite in structure.
The beneficial effect of adopting the further scheme is that: the mode that a plurality of small ferrites are spliced into a whole large wafer is adopted, the problem that a large-size ferrite sheet is difficult to process is solved, and a dielectric ring is sleeved outside the spliced ferrite wafer and used for fixing the position of the ferrite sheet.
Further, still include: the first even magnetic sheet used for making the polarized magnetic field even and the second even magnetic sheet used for making the polarized magnetic field even are arranged on the first ferrite and between the first permanent magnets, the second even magnetic sheet is arranged on the second ferrite and between the second permanent magnets.
The beneficial effect of adopting the further scheme is that: a uniform magnetic sheet is respectively added between the upper permanent magnet and the lower permanent magnet and between the upper ferrite and the lower ferrite, so that the grounding effect can be improved, and the magnetic field added on the ferrite sheet is more uniform.
Further, still include: and the temperature compensation sheet is used for stabilizing the performance of the device, the temperature compensation sheet is abutted to the second permanent magnet, and the second permanent magnet is positioned between the temperature compensation sheet and the second ferrite.
The beneficial effect of adopting the further scheme is that: the temperature compensation sheet is arranged on the upper part of the permanent magnet, so that the performance of the device is kept stable when the ambient temperature changes or the device generates heat through a high-power signal.
Furthermore, the material of the temperature compensation sheet is nickel-iron alloy.
The beneficial effect of adopting the further scheme is that: the material of temperature-compensating piece is ferronickel alloy, improves temperature-compensating piece's reliability.
Further, still include: the magnetic circuit cover plate is used for packaging the cavity, an opening is formed in one end of the cavity, and the magnetic circuit cover plate is buckled at the opening of the cavity.
The beneficial effect of adopting the further scheme is that: the magnetic circuit cover plate is used for compressing elements in the cavity, so that external dust is prevented from entering the cavity, and the reliability and the stability of the circulator are improved.
Advantages of additional aspects of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a schematic structural diagram of a circulator according to an embodiment of the present invention.
Fig. 2 is a second schematic structural diagram of a circulator according to an embodiment of the present invention.
Fig. 3 is a third schematic structural diagram of a circulator according to an embodiment of the present invention.
Fig. 4 is a fourth schematic structural diagram of a circulator provided in the embodiment of the present invention.
The reference numbers illustrate: 1-a cavity; 2-an inner conductor; 3-a first ferrite; 4-a second ferrite; 5-a first permanent magnet; 6-a second permanent magnet; 7-harmonic oscillator; 8-impedance match line; 9-a central junction; a 10-port lead; 11-a card slot; 12-a dielectric ring; 13-a first homogenizing sheet; 14-a second uniform magnetic sheet; 15-temperature compensation sheet; 16-magnetic circuit cover plate.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1 to 4, fig. 1 is a schematic structural diagram of a circulator provided in an embodiment of the present invention. Fig. 2 is a second schematic structural diagram of a circulator according to an embodiment of the present invention. Fig. 3 is a third schematic structural diagram of a circulator according to an embodiment of the present invention. Fig. 4 is a fourth schematic structural diagram of a circulator provided in the embodiment of the present invention.
An embodiment of the present invention provides an circulator, including: a cavity 1, an inner conductor 2 for conducting electromagnetic waves, a first ferrite 3 for conducting electromagnetic waves, a second ferrite 4 for conducting electromagnetic waves, a first permanent magnet 5 for generating a polarized magnetic field, and a second permanent magnet 6 for generating a polarized magnetic field; the first permanent magnet 5, the first ferrite 3, the inner conductor 2, the second ferrite 4 and the second permanent magnet 6 are sequentially stacked in the cavity 1.
The invention has the beneficial effects that: the ferrite and the permanent magnet are overlapped on the two sides of the inner conductor, so that the space of the circulator is reduced, the space occupancy rate of the circulator is reduced, and the circulator is miniaturized. When electromagnetic waves are transmitted through the inner conductor and the ferrite by adopting a mode of respectively arranging the upper ferrite and the lower ferrite on the inner conductor, a gyromagnetic effect is formed under the condition of external polarized magnetic fields generated by the upper permanent magnet and the lower permanent magnet, and the electromagnetic waves are transmitted along a specific direction.
The embodiment of the invention provides an ultralow-frequency high-power circulator, which comprises a cavity 1, wherein a first permanent magnet 3, an iron sheet, a first medium ring, a first gyromagnetic ferrite (namely, a first ferrite), a central conductor (namely, an inner conductor), a second medium ring, a second microwave ferrite (namely, a first ferrite), a uniform magnetic sheet, a second permanent magnet, a temperature compensation sheet 15 and a cover plate (namely, a magnetic loop cover plate) are sequentially placed in the cavity 1; a magnetic circuit board (namely a magnetic circuit cover plate) is covered at the opening end of the cavity 1, and the central conductor consists of a central junction 9 and three port leads 10; the embodiment of the invention adopts a novel harmonic oscillator structure, and reduces the frequency to the working frequency band under a high normalized internal field; the iron-nickel alloy is used for temperature compensation, and the device has good working stability and high index and reliability at the limit temperature.
Specifically, the ultra-low frequency high-power circulator comprises a cavity 1, wherein the cavity comprises a first permanent magnet, an iron sheet, a first medium ring, a first gyromagnetic ferrite, a central conductor, a second medium ring, a second gyromagnetic ferrite, a uniform magnetic sheet, a second permanent magnet and a temperature compensation sheet; the opening end of the cavity is covered with a magnetic circuit cover plate. The three harmonic oscillators and the three port impedance lines form 60-degree included angles in pairs, the three impedance matched lines are respectively connected with the three port lead wires, and the three harmonic oscillators are same in size and are mushroom-shaped so as to prolong the whole length of the three harmonic oscillators; the first and second gyromagnetic ferrites (i.e. the first and second ferrites) are spliced into a complete wafer by a plurality of ferrite sheets. The magnetic circuit cover plate is screwed into the cavity through threads to compress other materials in the cavity.
The purpose of the embodiment of the invention is as follows: aiming at the defects of the prior art, the ultralow frequency high-power circulator is provided, the working frequency is less than 80MHz, the volume is small, the feasibility of material processing is met, and the high-power requirement of a user is met.
The technical scheme is as follows: aiming at the design problem of an ultra-low frequency high-power device, firstly, a mode of an upper ferrite and a lower ferrite of an inner conductor is adopted, when electromagnetic waves are transmitted through the inner conductor and the ferrites, a gyromagnetic effect is formed under the condition of external polarized magnetic fields generated by the upper permanent magnet and the lower permanent magnet, and the electromagnetic waves are transmitted along a specific direction. And a magnetic homogenizing sheet is respectively added between the upper permanent magnet and the lower permanent magnet and between the upper ferrite and the lower ferrite, so that the grounding effect can be improved, and the magnetic field added on the ferrite sheet is more uniform. The nickel-iron alloy temperature compensation sheet is arranged on the upper part of the permanent magnet, so that the performance of the device is kept stable when the environmental temperature changes or the device generates heat through a high-power signal.
Furthermore, the length of the inner conductor harmonic oscillator is lengthened, the resonance frequency can be effectively reduced, the mushroom harmonic oscillator is adopted, the mushroom edge is recycled inwards, and the overall size is not increased while the harmonic oscillator is prolonged.
Further, according to a design formula:
wherein α is damping coefficient, ω is angular frequency, Δ HeThe effective line width of the material is lower, the damping coefficient is larger, therefore, the low delta H is selectedeThe ferrite material reduces the loss of the device;
furthermore, the mode that a plurality of small ferrites are spliced into a whole large wafer is adopted, the problem that a large-size ferrite sheet is difficult to process is solved, a polytetrafluoroethylene medium ring is sleeved outside the spliced ferrite wafer, and the position of the ferrite sheet is fixed.
In the ultra-low frequency circulator provided by the embodiment of the invention, a first strontium calcium permanent magnet, a first magnetic homogenizing sheet, a first dielectric ring, a first gyromagnetic oxygen piece (namely a first ferrite), a central conductor (namely an inner conductor), a second dielectric ring, a second gyromagnetic oxygen piece (namely a second ferrite), a second magnetic homogenizing sheet, a second strontium calcium permanent magnet (namely a second permanent magnet) and a temperature compensation sheet are sequentially placed in a cavity; the mouth end of cavity is covered with the magnetic circuit board (be magnetic circuit apron), and three draw-in grooves of cavity side design, three port lead wires of central conductor stretch out outside the cavity from cavity side draw-in groove, are connected with other equipment when supplying the device to use.
In the ultra-low frequency circulator provided by the embodiment of the invention, a first strontium calcium permanent magnet, a first magnetic homogenizing sheet, a first dielectric ring, a first gyromagnetic oxygen sheet, a central conductor, a second dielectric ring, a second gyromagnetic oxygen sheet, a second magnetic homogenizing sheet, a second strontium calcium permanent magnet and a temperature compensation sheet are sequentially placed in a cavity; the end cover of cavity has the magnetic circuit board, and three draw-in grooves are designed to the cavity side, and the three port lead wires of central conductor stretch out of the cavity from cavity side draw-in grooves, are connected with other equipment when supplying the device to use.
The harmonic oscillator in the inner conductor of the embodiment of the invention adopts a mushroom-shaped structure; the ferrite piece adopts the multi-disc mode of assembling. The length of the inner conductor harmonic oscillator is lengthened, so that the resonance frequency can be effectively reduced, the mushroom harmonic oscillator is adopted, the mushroom edge is inwards recycled, the overall size is not increased while the harmonic oscillator is prolonged, and the miniaturization design is realized; even if the circulator with the ultralow frequency below 80MHz is designed in a miniaturized mode, the ferrite sheet diameter exceeds 120mm, the processing is very difficult, and the problem of difficult processing of large-size ferrite sheets is solved by adopting a mode that a plurality of small ferrites are spliced into a whole large wafer.
Further, the inner conductor 2 includes: the resonator comprises three resonators 7, three impedance matching lines 8 and a center junction 9 for mounting the resonators 7 and the impedance matching lines 8, wherein the center junction 9 is of a plate-shaped circular structure, the resonators 7 and the impedance matching lines 8 are arranged on the center junction 9, the three resonators 7 and the three impedance matching lines 8 are equally distributed on the surface of the same side of the center junction 9 by taking the circle center of the center junction 9 as the center, the resonators 7 and the impedance matching lines 8 are arranged at intervals, and each impedance matching line 8 forms a geometric figure.
The beneficial effect of adopting the further scheme is that: the three harmonic oscillators are respectively coiled on the central junction, so that the length of the harmonic oscillator in the inner conductor is lengthened, the resonant frequency is effectively reduced, and the overall size is not increased while the harmonic oscillator is prolonged.
The three impedance matching lines are connected with each other, and the three harmonic oscillators are correspondingly connected with the three impedance matching lines respectively. The center junction may be a spacer, and functions to support the resonator and the impedance match line, and is a support plate structure, similar to the substrate in a circuit board.
The three harmonic oscillators and the three impedance matching lines are connected together in the middle of the center junction, and each harmonic oscillator and each impedance matching line form an integral branch. The two ends of the impedance matching line are connected with the harmonic oscillators, and the middle part of the impedance matching line is coiled between the two harmonic oscillators.
Furthermore, two ends of the harmonic oscillator 7 are connected with the impedance matching lines 8, the middle parts of the impedance matching lines 8 are respectively in mirror image spiral surrounding non-intersecting patterns towards two sides, and fixed intervals are arranged among the impedance matching lines in the patterns.
The beneficial effect of adopting the further scheme is that: the harmonic oscillator is of a mushroom-shaped structure, the length of the inner conductor harmonic oscillator is prolonged, the resonant frequency can be effectively reduced, the mushroom-shaped harmonic oscillator is adopted, the mushroom edge is recycled inwards, and the overall size is not increased while the harmonic oscillator is prolonged.
Furthermore, the number of the harmonic oscillators 7 and the number of the impedance matching lines 8 are three, and an included angle between any two harmonic oscillators 7 or any two impedance matching lines 8 is 120 degrees.
The beneficial effect of adopting the further scheme is that: the harmonic oscillators and the impedance matching lines are arranged along the radial direction of the central junction, the included angle between every two adjacent harmonic oscillators and the included angle between every two adjacent impedance matching lines are 120 degrees, and the space of the inner conductor is reduced and the space occupancy rate of the inner conductor is reduced by designing the combined structure of the harmonic oscillators and the impedance matching lines.
Further, the inner conductor 2 further includes: the three port lead wires 10 are connected with the three impedance matching lines 8 in a one-to-one correspondence manner, three card slots 11 for mounting the port lead wires are arranged on the side wall of the cavity 1, and the three port lead wires 10 are arranged in the card slots 11 in a one-to-one correspondence manner.
The beneficial effect of adopting the further scheme is that: the arrangement of the three port lead wires and the clamping groove facilitates the port lead wires to extend out of the cavity from the inside of the cavity through the clamping groove so as to be connected with other devices when the device is used.
Further, still include: the first ferrite 3 or the second ferrite 4 is used for fixing the dielectric ring 12, the first ferrite 3 is a circular plate-shaped structure, the first ferrite 3 is formed by splicing a plurality of fan-shaped ferrite pieces, the dielectric ring 12 is sleeved on the circumferential side walls of the fan-shaped ferrite pieces, and the second ferrite 4 is identical to the first ferrite 3 in structure.
The beneficial effect of adopting the further scheme is that: the mode that a plurality of small ferrites are spliced into a whole large wafer is adopted, the problem that a large-size ferrite sheet is difficult to process is solved, and a dielectric ring is sleeved outside the spliced ferrite wafer and used for fixing the position of the ferrite sheet.
The permanent magnet can be a strontium calcium permanent magnet, the ferrite can be a gyromagnetic ferrite, and the dielectric ring can be a polytetrafluoroethylene dielectric ring.
Further, still include: the first even magnetic sheet 13 that is used for making the magnetic field of polarization even and be used for making the even second even magnetic sheet 14 of magnetic field of polarization, first even magnetic sheet 13 sets up first ferrite 3 with between the first permanent magnet 5, second even magnetic sheet 14 sets up second ferrite 4 with between the second permanent magnet 6.
The beneficial effect of adopting the further scheme is that: a uniform magnetic sheet is respectively added between the upper permanent magnet and the lower permanent magnet and between the upper ferrite and the lower ferrite, so that the grounding effect can be improved, and the magnetic field added on the ferrite sheet is more uniform.
Further, still include: and the temperature compensation sheet 15 is used for stabilizing the performance of the device, the temperature compensation sheet 15 is abutted with the second permanent magnet 6, and the second permanent magnet 6 is positioned between the temperature compensation sheet 15 and the second ferrite 4.
The beneficial effect of adopting the further scheme is that: the temperature compensation sheet is arranged on the upper part of the permanent magnet, so that the performance of the device is kept stable when the ambient temperature changes or the device generates heat through a high-power signal.
Further, the temperature compensation plate 15 is made of a nickel-iron alloy.
The beneficial effect of adopting the further scheme is that: the material of temperature-compensating piece is ferronickel alloy, improves temperature-compensating piece's reliability.
Further, still include: the magnetic circuit cover plate 16 is used for packaging the cavity 1, an opening is formed in one end of the cavity 1, and the magnetic circuit cover plate 16 is buckled at the opening of the cavity 1.
The beneficial effect of adopting the further scheme is that: the magnetic circuit cover plate is used for compressing elements in the cavity, so that external dust is prevented from entering the cavity, and the reliability and the stability of the circulator are improved.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. An circulator, comprising: the electromagnetic wave generating device comprises a cavity, an inner conductor for conducting electromagnetic waves, a first ferrite for conducting electromagnetic waves, a second ferrite for conducting electromagnetic waves, a first permanent magnet for generating a polarized magnetic field and a second permanent magnet for generating a polarized magnetic field;
the first permanent magnet, the first ferrite, the inner conductor, the second ferrite and the second permanent magnet are sequentially arranged in the cavity in an overlapping mode.
2. The circulator of claim 1, wherein the inner conductor comprises: the three harmonic oscillators and the three impedance matching lines are arranged on the central junction, the three harmonic oscillators and the three impedance matching lines are evenly distributed on the surface of the same side of the central junction by taking the circle center of the central junction as the center, the harmonic oscillators and the impedance matching lines are arranged at intervals, and each impedance matching line forms a geometric figure.
3. The circulator of claim 2, wherein two ends of the harmonic oscillator are connected to the impedance matching lines, the middle of the impedance matching lines are respectively in mirror-image spiral surrounding non-intersecting patterns towards two sides, and the impedance matching lines in the patterns are spaced at fixed intervals.
4. The circulator of claim 2, wherein the number of the harmonic oscillators and the number of the impedance matching lines are three, and an included angle between any two harmonic oscillators or any two impedance matching lines is 120 degrees.
5. The circulator of claim 2, wherein the inner conductor further comprises: the three port lead wires are connected with the three impedance matching lines in a one-to-one correspondence mode, three clamping grooves used for installing the port lead wires are formed in the side wall of the cavity, and the three port lead wires are arranged in the clamping grooves in a one-to-one correspondence mode.
6. The circulator of claim 1, further comprising: the first ferrite is in a circular plate-shaped structure and is formed by splicing a plurality of fan-shaped ferrite pieces, the dielectric ring is sleeved on the circumferential side walls of the fan-shaped ferrite pieces, and the second ferrite is the same as the first ferrite in structure.
7. The circulator of claim 1, further comprising: the first even magnetic sheet used for making the polarized magnetic field even and the second even magnetic sheet used for making the polarized magnetic field even are arranged on the first ferrite and between the first permanent magnets, the second even magnetic sheet is arranged on the second ferrite and between the second permanent magnets.
8. The circulator of claim 1, further comprising: and the temperature compensation sheet is used for stabilizing the performance of the device, the temperature compensation sheet is abutted to the second permanent magnet, and the second permanent magnet is positioned between the temperature compensation sheet and the second ferrite.
9. The circulator of claim 8, wherein the temperature-compensating plate is made of a nickel-iron alloy.
10. The circulator of claim 1, further comprising: the magnetic circuit cover plate is used for packaging the cavity, an opening is formed in one end of the cavity, and the magnetic circuit cover plate is buckled at the opening of the cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010624755.4A CN111755788A (en) | 2020-07-01 | 2020-07-01 | Circulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010624755.4A CN111755788A (en) | 2020-07-01 | 2020-07-01 | Circulator |
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| Publication Number | Publication Date |
|---|---|
| CN111755788A true CN111755788A (en) | 2020-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010624755.4A Pending CN111755788A (en) | 2020-07-01 | 2020-07-01 | Circulator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113381152A (en) * | 2021-06-18 | 2021-09-10 | 中国电子科技集团公司第九研究所 | S-band miniaturized microstrip circulator circuit and circulator composed of same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5164687A (en) * | 1991-06-17 | 1992-11-17 | Renaissance Electronics Corp. | Compact lumped constant non-reciprocal circuit element |
| DE60032209D1 (en) * | 1999-03-26 | 2007-01-18 | Hitachi Metals Ltd | NONREZIPROKE ARRANGEMENT WITH CONCENTRATED ELEMENTS |
| CN201340897Y (en) * | 2008-12-31 | 2009-11-04 | 南京拓邦微电子有限公司 | TD-SCDMA surface mounted small-sized circulator |
| CN201838699U (en) * | 2010-09-02 | 2011-05-18 | 南京广顺电子技术研究所 | Miniature circulator for mobile communication base station |
| CN206163670U (en) * | 2016-10-31 | 2017-05-10 | 深圳市华扬通信技术有限公司 | Metric wave circulator |
-
2020
- 2020-07-01 CN CN202010624755.4A patent/CN111755788A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5164687A (en) * | 1991-06-17 | 1992-11-17 | Renaissance Electronics Corp. | Compact lumped constant non-reciprocal circuit element |
| DE60032209D1 (en) * | 1999-03-26 | 2007-01-18 | Hitachi Metals Ltd | NONREZIPROKE ARRANGEMENT WITH CONCENTRATED ELEMENTS |
| CN201340897Y (en) * | 2008-12-31 | 2009-11-04 | 南京拓邦微电子有限公司 | TD-SCDMA surface mounted small-sized circulator |
| CN201838699U (en) * | 2010-09-02 | 2011-05-18 | 南京广顺电子技术研究所 | Miniature circulator for mobile communication base station |
| CN206163670U (en) * | 2016-10-31 | 2017-05-10 | 深圳市华扬通信技术有限公司 | Metric wave circulator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113381152A (en) * | 2021-06-18 | 2021-09-10 | 中国电子科技集团公司第九研究所 | S-band miniaturized microstrip circulator circuit and circulator composed of same |
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Application publication date: 20201009 |