CN105449319A - Strip line type ferrite phase shifter - Google Patents
Strip line type ferrite phase shifter Download PDFInfo
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- CN105449319A CN105449319A CN201510970286.0A CN201510970286A CN105449319A CN 105449319 A CN105449319 A CN 105449319A CN 201510970286 A CN201510970286 A CN 201510970286A CN 105449319 A CN105449319 A CN 105449319A
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- strip line
- phase shifter
- ferrite
- ferrite phase
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/18—Phase-shifters
- H01P1/181—Phase-shifters using ferroelectric devices
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Abstract
The invention discloses a strip line type ferrite phase shifter, which belongs to the field of microwave communication devices. The strip line type ferrite phase shifter successively comprises a first ferrite layer, a first dielectric layer, a second dielectric layer and a second ferrite layer from bottom to top, wherein the center of the ferrite phase shifter is provided with a through hole; an exciting coil structure, a first unit structure, a second unit structure and a third unit structure are independently arranged in four directions by taking the through hole as the center; and each unit structure comprises a strip line structure positioned between the first dielectric layer and the second dielectric layer, and a metal post which penetrates through the ferrite phase shifter. The strip line type ferrite phase shifter can obviously reduce the volume of the ferrite phase shifter while the excellent performance of aspects including insertion loss and average power are considered, realizes integration with an active circuit, does not need to consider a matching problem of dielectric materials and ferrite materials, and greatly lowers process difficulty. Three shifter units are integrated in one shifter space to increase an integration level and improve the use ratio of a magnetization line.
Description
Technical field
The invention belongs to microwave communication devices field, be specifically related to a kind of Stripline-style ferrite phase shifter.
Background technology
The phase shifter being applied to field of microwave communication mainly contains PIN, MMIC phase shifter, MEMS phase shifter and ferrite phase shifter.Wherein, ferrite phase shifter, relative to the phase shifter of the form such as PIN diode, MMIC, has very large advantage in insertion loss, power consumption and power capacity.
Microwave ferrite phase shifter common at present mainly contains two classes: a class adopts to load the form making of ferrite core in conventional waveguide (as rectangular waveguide), as typical Reggia-Spencer phase shifter etc., in this conventional waveguide type ferrite phase shifter, waveguide dimensions is determined by propagated electromagnetic wavelength, be difficult to compression, cause the volume and weight of phase shifter all comparatively large, and be difficult to be connected with active circuit; Another kind ofly to make based on plane coupled transmission line, as the strip line formula phase shifter based on LTCC technique, such phase shifter need consider the matching problem of Ferrite Material and dielectric material, and technology difficulty is large, and the performance of such phase shifter in phase shift degree and Insertion Loss is also poor.Therefore, how while reducing the volume and weight of ferrite phase shifter, ensure its good performance, become the large technical barrier that the development of current ferrite phase shifter faces.
Summary of the invention
The invention provides a kind of Stripline-style ferrite phase shifter, this Stripline-style ferrite phase shifter, while taking into account the excellent properties in insertion loss and average power, significantly can reduce the volume of ferrite phase shifter, and realization is integrated with active circuit.
Technical scheme of the present invention is as follows:
A kind of Stripline-style ferrite phase shifter, be followed successively by the first ferrite layer from bottom to top, first medium layer, second dielectric layer and the second ferrite layer, a through hole is opened at described ferrite phase shifter center, four direction centered by through hole is respectively excitation coil structure, first module structure, second unit structure and the 3rd cellular construction, adjacent both direction in four direction is vertical, described first module structure, second ferrite layer upper surface of second unit structure and the 3rd cellular construction and the first ferrite layer lower surface arrange metallic conductor ground, described cellular construction comprises the strip lines configuration between first medium layer and second dielectric layer and runs through the metal column of ferrite phase shifter four-layer structure, described strip lines configuration comprises the first input strip line, second coupling strip line, 3rd coupling strip line, 4th coupling strip line and the 5th exports strip line, it is vertical that described first input strip line and second mates strip line, it is vertical that second coupling strip line and the 4th mates strip line, second coupling strip line and the 4th mates between strip line and is connected in series the 3rd coupling strip line, 4th coupling strip line and the 5th exports strip line and is connected and is located along the same line, it is the input of cellular construction that described first input strip line and the 5th exports strip line, output port, the both sides of strip lines configuration respectively arrange the metal column that a row is parallel to the first input strip line, described excitation coil structure comprises the first coil be wound on the first ferrite layer and the second coil be wound on the second ferrite layer, adopts solenoid winding method, described first coil is contrary with the coiling direction of the second coil, the output of described first coil is connected with the input of the second coil, the input of the first coil and the output of the second coil are respectively two input electrode ports of excitation coil structure, for applying potential pulse.
Further, the shape of described through hole is square, rectangle, circle, triangle etc.
Further, described metal column is metal filled cylinder, cuboid etc., for suppressing higher mode.
Further, the spacing at described second coupling strip line and central through hole edge is 0.7mm.
Further, the distance a between described first input strip line and adjacent metal post is 2.5mm, and the described 5th distance exported between strip line and adjacent metal post is 2.5mm.
Further, described first medium layer and second dielectric layer adopt PCB technology, LTCC technique etc. obtained, and described first ferrite layer and the second ferrite layer adopt LTCC technique, HTCC technique etc. obtained.
Further, described first ferrite layer and the second ferrite layer material selection have the spinel ferrite powder of gyromagnetism, low-coercivity, low lossy microwave, as LiZn ferrite, YIG ferrite, obtained through batch mixing, curtain coating and lamination.
Further, described first input strip line and the 5th characteristic impedance exporting strip line remain 50 ohm, and the conductor width of the first coil and the second coil does not limit.
Further, described first input strip line, the second coupling strip line, the 4th coupling strip line and the 5th export length, the width of strip line, and the 3rd width of coupling strip line, gap and number equidimension, can determine according to the operating frequency of phase shifter and phase-shift phase.
Further, described first coil, the second coil adopt type metal conductor on ferrite layer, or traditional enamelled wire coiling obtains.
Further, the length of described 3rd coupling strip line is quarter-wave odd-multiple.
The operation principle of phase shifter of the present invention is as follows:
The microwave input/output terminal of each for phase shifter cellular construction is received in microwave circuit respectively, between two input electrode ports of excitation coil structure, applies potential pulse; During the pulse of feed-in forward voltage, the first ferrite layer and the second ferrite layer will be saturated magnetization, and after removing magnetizing current, ferrite will be operated in remnant magnetism state, and now the output port of each cellular construction obtains a fixed phase; When the pulse of feed-in negative voltage, ferritic remnant magnetism state will be changed, and obtain a new phase place, thus obtain a non-reciprocal phase difference.
Beneficial effect of the present invention is:
1, Stripline-style ferrite phase shifter provided by the invention is compared with traditional rectangular waveguide type ferrite phase shifter, volume reduces greatly, can be connected with active circuit by strip line simultaneously, be conducive to realizing the miniaturization of phase shifter and integrated with other Microwave Active circuit.
2, Stripline-style ferrite phase shifter provided by the invention is without the need to considering the matching problem of dielectric material and Ferrite Material, substantially reduces technology difficulty; And the ferrite phase shifter obtained has the excellent properties that insertion loss is low and average power capacity is large.
3, three phase shifter element are integrated in a phase shifter space by Stripline-style ferrite phase shifter provided by the invention, add integrated level, improve the utilance of the line of magnetization.
Accompanying drawing explanation
Fig. 1 is the overall structure figure of inventive tape line formula ferrite phase shifter, and 1 is through hole, and 2 is excitation coil structure;
Fig. 2 is the structural representation of inventive tape line formula ferrite phase shifter between first medium layer and second dielectric layer; Wherein, 3 is cellular construction;
Fig. 3 is the vertical view of inventive tape line structure and metal column; Wherein, 4 is metal column, and 5 is the first input strip line, and 6 is the second coupling strip line, and 7 is the 3rd coupling strip line, and 8 is the 4th coupling strip line, and 9 is the 5th output strip line;
Fig. 4 is the coil-winding mode schematic diagram in inventive tape line formula ferrite phase shifter excitation coil structure;
Fig. 5 is inventive tape line formula ferrite phase shifter insertion loss simulation result figure;
Fig. 6 is inventive tape line formula ferrite phase shifter return loss simulation result figure;
Fig. 7 is inventive tape line formula ferrite phase shifter phase-shift phase analogous diagram.
Embodiment
Below in conjunction with drawings and Examples in detail, technical scheme of the present invention is described in detail.
Embodiment
Fig. 1, 2 is the structural representation of embodiment of the present invention Stripline-style ferrite phase shifter, comprise the first ferrite layer from bottom to top, first medium layer, second dielectric layer and the second ferrite layer, described ferrite phase shifter center is opened one and is run through the first ferrite layer, first medium layer, second dielectric layer, the square through hole 1 of the second ferrite layer four-layer structure, square through hole and ferrite phase shifter have identical center, four direction centered by square through hole 1 is respectively excitation coil structure 2, first module structure, second unit structure and the 3rd cellular construction, adjacent both direction in four direction is vertical, described first module structure, second ferrite layer upper surface of second unit structure and the 3rd cellular construction and the first ferrite layer lower surface arrange metallic conductor ground, described cellular construction 3 comprises the strip lines configuration between first medium layer and second dielectric layer and runs through the metal column 4 of ferrite phase shifter four-layer structure, described strip lines configuration comprises the first input strip line 5, second coupling strip line 6, 3rd U-shaped coupling strip line 7, 4th coupling strip line 8 and the 5th exports strip line 9, it is vertical that described first input strip line 5 and second mates strip line 6, second coupling strip line 6 mates banded 8 lines with the 4th vertical, second coupling strip line 6 and the 4th mates between strip line 8 and is connected in series the 3rd U-shaped coupling strip line 7, 4th coupling strip line 8 and the 5th exports strip line 9 and is connected and is located along the same line, it is the input of cellular construction that described first input strip line 5 and the 5th exports strip line 9, output port, and the same side be positioned at away from central through hole, the both sides of described strip lines configuration respectively arrange the metal column 4 that a row is parallel to the first input strip line, described excitation coil structure comprises the first coil be wound on the first ferrite layer and the second coil be wound on the second ferrite layer, adopts solenoid winding method (as shown in Figure 4), described first coil is contrary with the coiling direction of the second coil, contrary to ensure the magnetic direction on the first ferrite layer and the second ferrite layer, the output of described first coil is connected with the input of the second coil, the input of the first coil and the output of the second coil are respectively two input electrode ports of excitation coil structure, for applying potential pulse.
Further, described first input strip line 5 and the 5th exports strip line 9 is 50 ohm of strip lines; Described second coupling strip line 6 and the 4th coupling strip line 8 are quarter-wave coupling.
Further, the length of side of described square through hole 1 is 9.6mm.
Further, the dielectric material of described first medium layer and second dielectric layer is the RT/duroid6010 of Rogers company, and dielectric constant is 10.2, tangent loss angle is 0.0023, and the thickness of first medium layer and second dielectric layer is 0.1mm.
Further, described first ferrite layer and the second ferrite layer employing saturation induction density 4 π MS are the LiZn ferrite slurry of 2300gauss, are obtained by LTCC technique; The thickness of the first ferrite layer and the second ferrite layer is 0.9mm.Each ferrite layer brushes 9 layers, and every layer thickness is 0.1mm, is noted the techniques such as silver, isostatic pressed, sintering by gyromagnet Li ferrite preburning powdered material tape casting diaphragm and obtains through punching, lamination, through hole.
Further, described strip lines configuration is connected to form successively by 50 ohm of input strip lines, quarter-wave matching section, U-shaped coupling strip line, quarter-wave matching section and 50 ohm of output strip lines, adopts PCB technology to obtain.It is that (it doesn't matter for strip line length for 0.3mm that described first input strip line 5 width and the 5th exports strip line width, it is 50 ohm that width determines its impedance, in embodiment, the banded line length of the first input is 9.3mm, and the 5th output strip line length is 2.5mm); Second coupling strip line 6 length is 2.1mm, and width is 0.25mm; 3rd U-shaped coupling strip line 7 is made up of 9 sections of identical strip lines, and the length of every section is 2.2mm, and width is 0.2mm, and between every section, gap is 0.2mm, and live width is 0.2mm; 4th coupling strip line 6 length is 3.6mm, and width is 0.25mm.
Further, the both sides of described strip lines configuration respectively arrange row's metal cylinder, and a row has 6 metal cylinders, and the diameter of each cylinder is 0.4mm, and the spacing of often arranging adjacent column center in metal cylinder is 1mm.
Further, the spacing at described second coupling strip line and central through hole edge is 0.7mm; Distance a between described first input strip line and adjacent metal post is 2.5mm, and the described 5th distance exported between strip line and adjacent metal post is 2.5mm.
Further, the first coil in described excitation coil structure and the second coil adopt silk screen print method respectively at top layer and the bottom printed conductor pattern of the first ferrite layer and the second ferrite layer, connected by metal column between layers, form solenoid winding method, the output of the first coil connects the input of the second coil, the input of the first coil and the output of the second coil are respectively the input/output terminal of excitation coil structure, for applying potential pulse.The winding method of the first coil or the second coil as shown in Figure 4.
Further, described Stripline-style ferrite phase shifter be of a size of the wide * of long * high=30.2mm*30.2mm*2mm, be significantly smaller than conventional rectangular guide type phase shifter, can be connected with active circuit by strip line simultaneously, be conducive to realizing the miniaturization of phase shifter and integrated with other Microwave Active circuit.
Fig. 5,6,7 is respectively embodiment Stripline-style ferrite phase shifter insertion loss simulation result figure, return loss simulation result figure and phase-shift phase analogous diagram.From Fig. 5,6,7, Stripline-style ferrite phase shifter described in embodiment, its centre frequency is 9.2GHz, operating frequency is at 8.2GHz ~ 10.2GHz, band width interpolation enters loss S12<-1.9dB, return loss S11<-17dB, reaches the phase-shift phase of 350 degree at 9.2GHz, at 8.8GHz, there is maximum phase-shift phase 360 degree, at 10.2GHz, there is minimum phase shift amount 290 degree.
Claims (9)
1. a Stripline-style ferrite phase shifter, be followed successively by the first ferrite layer from bottom to top, first medium layer, second dielectric layer and the second ferrite layer, a through hole is opened at described ferrite phase shifter center, four direction centered by through hole is respectively excitation coil structure, first module structure, second unit structure and the 3rd cellular construction, adjacent both direction in four direction is vertical, described first module structure, second ferrite layer upper surface of second unit structure and the 3rd cellular construction and the first ferrite layer lower surface arrange metallic conductor ground, described cellular construction comprises the strip lines configuration between first medium layer and second dielectric layer and runs through the metal column of ferrite phase shifter four-layer structure, described strip lines configuration comprises the first input strip line, second coupling strip line, 3rd coupling strip line, 4th coupling strip line and the 5th exports strip line, it is vertical that described first input strip line and second mates strip line, it is vertical that second coupling strip line and the 4th mates strip line, second coupling strip line and the 4th mates between strip line and is connected in series the 3rd coupling strip line, 4th coupling strip line and the 5th exports strip line and is connected and is located along the same line, it is the input of cellular construction that described first input strip line and the 5th exports strip line, output port, the both sides of strip lines configuration respectively arrange the metal column that a row is parallel to the first input strip line, described excitation coil structure comprises the first coil be wound on the first ferrite layer and the second coil be wound on the second ferrite layer, adopts solenoid winding method, described first coil is contrary with the coiling direction of the second coil, the output of described first coil is connected with the input of the second coil, and the input of the first coil and the output of the second coil are respectively two input electrode ports of excitation coil structure.
2. Stripline-style ferrite phase shifter according to claim 1, is characterized in that, the shape of described through hole is square, rectangle, circle, triangle.
3. Stripline-style ferrite phase shifter according to claim 1, is characterized in that, described metal column is metal filled cylinder or cuboid.
4. Stripline-style ferrite phase shifter according to claim 1, is characterized in that, the spacing at described second coupling strip line and central through hole edge is 0.7mm.
5. Stripline-style ferrite phase shifter according to claim 1, is characterized in that, the distance a between described first input strip line and adjacent metal post is 2.5mm, and the described 5th distance exported between strip line and adjacent metal post is 2.5mm.
6. Stripline-style ferrite phase shifter according to claim 1, is characterized in that, described first input strip line and the 5th characteristic impedance exporting strip line remain 50 ohm.
7. Stripline-style ferrite phase shifter according to claim 1, it is characterized in that, described first input strip line, the second coupling strip line, the 4th coupling strip line and the 5th export length, the width of strip line, and the 3rd width of coupling strip line, gap and number, can determine according to the operating frequency of phase shifter and phase-shift phase.
8. Stripline-style ferrite phase shifter according to claim 1, is characterized in that, described first coil, the second coil adopt type metal conductor on ferrite layer, or enamelled wire coiling obtains.
9. Stripline-style ferrite phase shifter according to claim 1, is characterized in that, the length of described 3rd coupling strip line is quarter-wave odd-multiple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510970286.0A CN105449319B (en) | 2015-12-21 | 2015-12-21 | A kind of Stripline-style ferrite phase shifter |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510970286.0A CN105449319B (en) | 2015-12-21 | 2015-12-21 | A kind of Stripline-style ferrite phase shifter |
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| CN105449319A true CN105449319A (en) | 2016-03-30 |
| CN105449319B CN105449319B (en) | 2017-12-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105789739A (en) * | 2016-04-01 | 2016-07-20 | 电子科技大学 | Micro-strip line type ferrite phase shifter |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1259224A (en) * | 1969-03-20 | 1972-01-05 | ||
| CN101557024A (en) * | 2009-05-20 | 2009-10-14 | 电子科技大学 | Stripline-style ferrite phase shifter based on LTCC technology |
| CN104201442A (en) * | 2014-07-16 | 2014-12-10 | 电子科技大学 | Microstrip line phase shifter based on LTCC technology |
-
2015
- 2015-12-21 CN CN201510970286.0A patent/CN105449319B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1259224A (en) * | 1969-03-20 | 1972-01-05 | ||
| CN101557024A (en) * | 2009-05-20 | 2009-10-14 | 电子科技大学 | Stripline-style ferrite phase shifter based on LTCC technology |
| CN104201442A (en) * | 2014-07-16 | 2014-12-10 | 电子科技大学 | Microstrip line phase shifter based on LTCC technology |
Non-Patent Citations (3)
| Title |
|---|
| R. R. JONES: ""A Slow Wave Digital Ferrite Strip Transmission Line Phase Shifter"", 《IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES》 * |
| STEVEN N. STITZER 等: ""FINITE ELEMENT MODELING OF FERRITE PHASE SHIFTERS"", 《1996 IEEE MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM DIGEST》 * |
| 陶魏巍 等: ""薄壁钛合金Reggia-Spencer移相器的结构实现"", 《现代雷达》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105789739A (en) * | 2016-04-01 | 2016-07-20 | 电子科技大学 | Micro-strip line type ferrite phase shifter |
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Granted publication date: 20171215 Termination date: 20201221 |