CN220830094U - L-band high-power broadband difference phase shift circulator - Google Patents
L-band high-power broadband difference phase shift circulator Download PDFInfo
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- CN220830094U CN220830094U CN202322523211.0U CN202322523211U CN220830094U CN 220830094 U CN220830094 U CN 220830094U CN 202322523211 U CN202322523211 U CN 202322523211U CN 220830094 U CN220830094 U CN 220830094U
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- 230000010363 phase shift Effects 0.000 title claims abstract description 18
- 229910000859 α-Fe Inorganic materials 0.000 claims abstract description 12
- 230000006835 compression Effects 0.000 claims abstract description 4
- 238000007906 compression Methods 0.000 claims abstract description 4
- 239000000919 ceramic Substances 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 239000006096 absorbing agent Substances 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 claims description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 3
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 238000001816 cooling Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 239000000428 dust Substances 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model provides a L wave band high power broadband difference phase shift circulator, high power load installs in folding double T's top, the upper and lower part of phase shift section has 1 heating panel respectively, through the fix with screw, 1 cooling fan is installed to high power load top, the side-mounting 4 cooling fans of phase shift section, through the fix with screw, 3dB electric bridge and folding double T install in the both ends of phase shift section, the dust guard is installed in the top of upper heating panel, the riser is installed in folding double T's ring flange, the technical scheme of compression waveguide height, symmetry loading ferrite has been adopted, the technical problem that L wave band circulator is too big has been solved, utilize ferrite phase shift section's non-reciprocal characteristic, adjust the magnetic field direction, realize the function of circulator, it reduces L wave band circulator size, keep the technical effect of device good performance.
Description
Technical Field
The utility model belongs to the technical field of electromagnetic fields and microwaves, and particularly relates to a circulator structure technology.
Background
The waveguide four-port difference phase shift circulator has low insertion loss, large power capacity and wide working frequency band, is widely applied to radar transceiver systems, and is even an irreplaceable part in partial high average power and high pulse power systems.
As the design, fabrication, and process level of radar transceiver components increase, the development of radar feeder systems also tends to be wide-frequency, miniaturized, and highly integrated. The volume of the L-band circulator is far larger than that of the same type S, C, X band due to the wavelength, so that the miniaturized design of the L-band circulator has great significance for the spatial distribution and system cascading of a radar feeder system.
The patent CN 1037307111A proposes a high-power differential phase shift waveguide circulator of the working S-band, and the function of the circulator is realized by folding the differential phase shift section of the double-T symmetrically loaded ferrite and the 3dB split bridge.
Disclosure of utility model
In order to solve the technical problem that the L-band circulator is overlarge in volume, the technical scheme of compressing the height of the waveguide and symmetrically loading ferrite is adopted, the magnetic field direction is adjusted by utilizing the nonreciprocal characteristic of the ferrite phase shifting section, the function of the circulator is realized, and the technical effects of reducing the size of the L-band circulator and keeping the good performance of the device are achieved.
The circulator comprises a 3dB bridge, a folding double T and a phase shifting section.
The cavity of the 3dB bridge comprises a port one P1, a port two P3, a port three P11 and a port four P12, and two paths of signals are output through the compression waveguide of the cavity and the matching block in the short joint of the coupling cavity, and the amplitude values are the same and the phase difference is 90 degrees.
The folding double-T cavity comprises a port one P31, a port two P32, a port three P2 and a port four P4, and the power is equally divided by matching the transition section of the cavity with a matching block.
The phase shift section is formed by connecting two waveguide cavities in parallel, and comprises a port one P21, a port two P22, a port three P23 and a port four P24, 8 ceramic ferrites with the same size are symmetrically loaded in the waveguide cavities, 8 deep grooves are formed in the upper surface and the lower surface outside the waveguide cavities, and magnetic steel is arranged in the waveguide cavities and corresponds to the ceramic ferrites in the waveguide cavities, so that the contact surface is enlarged, and heat is transferred.
The port III P11 and the port IV P12 of the 3dB bridge are respectively connected with the port I P21 and the port II P22 of the phase shifting section through flanges, and the port III P23 and the port IV P24 of the phase shifting section are respectively connected with the port I P31 and the port II P32 of the folding double T through flanges.
The circulator also comprises a high-power load, and consists of a waveguide cavity and a silicon carbide absorber, wherein the port P41 is connected with the four P4 ports of the folding double T, absorbs redundant radio frequency signals and converts the redundant radio frequency signals into heat.
The circulator also comprises 2 radiating plates which are respectively arranged above and below the phase shifting section and cling to the magnetic steel of the waveguide cavity of the circulator to absorb heat generated by the ceramic ferrite.
The circulator also comprises a plurality of heat dissipation fans which are arranged above the high-power load and on the side face of the phase shifting section, so that the heat dissipation performance is improved, the stability of the system is enhanced, and the power capacity of the system is improved.
The circulator also comprises a dust-proof plate which is arranged above the upper radiating plate.
The circulator also comprises a vertical plate which is arranged outside the folding double T and used for fixing the power supply cables of 5 cooling fans.
Drawings
Fig. 1 is an exploded view of a circulator, fig. 2 is a cavity connection view, fig. 3 is a perspective view of the circulator, fig. 4 is a 3dB bridge structure diagram, fig. 5 is a folded double-T structure diagram, fig. 6 is a phase shift section structure diagram, and fig. 7 is a high power load structure diagram.
Detailed Description
The technical scheme of the utility model is specifically described below with reference to the accompanying drawings.
The circulator is shown in the figure 1, a high-power load 4 is arranged above a folding double T3, 1 radiating plate 7 and 1 radiating fan 6 are respectively arranged above and below a phase shifting section 2, the high-power load is fixedly arranged above the high-power load through screws, 4 radiating fans 5 are arranged on the side face of the phase shifting section, a 3dB bridge 1 and the folding double T3 are arranged at two ends of the phase shifting section 2 through screws, a dust guard 8 is arranged above the radiating plate 7, a vertical plate 9 is arranged on a flange plate of the folding double T3, and the effect after the installation is shown in the figure 3 through screws.
The cavity structure of the 3dB bridge 1 is shown in fig. 4, and comprises a port one P1, a port two P3, a port three P11 and a port four P12, and the amplitude of input signals and the amplitude of output signals are the same and the phase difference is 90 degrees through a compression waveguide A1 of the cavity and a matching block A2 in a coupling cavity short joint.
The cavity structure of the folded double T3 is shown in FIG. 5, and comprises a port one P31, a port two P32, a port three P2 and a port four P4, and the power is equally divided by realizing matching through a transition section C1 and a matching block C2 of the cavity.
The structure of the phase shifting section 2 is shown in fig. 6, and is formed by connecting two waveguide cavities B1 in parallel, wherein the phase shifting section comprises a port one P21, a port two P22, a port three P23 and a port four P24, 8 ceramic ferrites B2 with the same size are symmetrically loaded in the waveguide cavity B1 in an adhesive mode, 8 deep grooves are formed in the upper surface and the lower surface outside the waveguide cavity B1, and magnetic steel B3 is arranged in the waveguide cavity B1 and corresponds to the ceramic ferrites in the waveguide cavity B1, and the phase shifting section is shown in fig. 1.
The port III P11 and the port IV P12 of the 3dB bridge are respectively connected with the port I P21 and the port II P22 of the phase shifting section through flanges, and the port III P23 and the port IV P24 of the phase shifting section are respectively connected with the port I P31 and the port II P32 of the folding double T through flanges.
The structure of the high power load 4 is shown in fig. 7, and is composed of a waveguide cavity DZ and a silicon carbide absorber D2, and a port P41 is connected with a port four P4 of the folded double T3 through a flange.
The radio frequency signal is input from the port one P1 of the 3dB bridge 1, changed into two paths of signals with equal amplitude and 90-degree phase difference, respectively transmitted into the two waveguide cavities of the phase shifting section 2, and transmitted to the port one P31 and the port two P32 of the folding double T3 respectively, concentrated in the folding double T and output from the port three P2 of the folding double T, as shown in figure 2.
The radio frequency signals are input from the port three P2 of the folding double T3, changed into two paths of signals with equal amplitude values, respectively transmitted into the two waveguide cavities of the phase shifting section 2, at the moment, the amplitude values of the two paths of signals are equal, the phase difference is 90 degrees, respectively transmitted to the port three P11 and the port four P12 of the 3dB 3, concentrated in the 3dB bridge, and output from the port two P3 of the 3dB bridge, as shown in figure 2.
The circulator works at the average power of L wave band 1.2-1.4GHz and 10KW, bears peak power exceeding 50KW, and has the whole device with loss less than 0.3dB and isolation greater than 23dB in 15% of relative bandwidth.
The foregoing is illustrative of the present utility model and is not to be construed as limiting thereof, but rather as being included within the spirit and scope of the present utility model.
Claims (6)
1. An L-band high-power broadband difference phase shift circulator, comprising: 3dB bridge, folding double T and phase shifting section; the cavity of the 3dB bridge comprises a first port (P1), a second port (P3), a third port (P11) and a fourth port (P12), and is provided with a compression waveguide and a matching block in a coupling cavity short joint; the folding double-T cavity comprises a first port (P31), a second port (P32), a third port (P2) and a fourth port (P4), and is provided with a transition section and a matching block; the phase shifting section consists of two waveguide cavities connected in parallel, and comprises a first port (P21), a second port (P22), a third port (P23) and a fourth port (P24), wherein 8 ceramic ferrites with the same size are loaded in the waveguide cavities, 8 deep grooves are formed in the upper surface and the lower surface outside the waveguide cavities, and magnetic steel is arranged in the deep grooves and corresponds to the ceramic ferrites in the waveguide cavities; the port III (P11) and the port IV (P12) of the 3dB bridge are respectively connected with the port I (P21) and the port II (P22) of the phase shifting section, and the port III (P23) and the port IV (P24) of the phase shifting section are respectively connected with the port I (P31) and the port II (P32) of the folding double T.
2. The L-band high-power wideband differential phase-shift circulator of claim 1, further comprising: the high-power load consists of a waveguide cavity and a silicon carbide absorber, and a port (P41) is connected with a port four (P4) of the folding double T.
3. The L-band high-power wideband differential phase-shift circulator of claim 1, further comprising: and 2 radiating plates respectively arranged above and below the phase shifting section and closely attached to the magnetic steel of the waveguide cavity.
4. The L-band high-power wideband differential phase-shift circulator of claim 1, further comprising: and the plurality of heat dissipation fans are arranged above the high-power load and on the side face of the phase shifting section.
5. The L-band high-power wideband differential phase-shift circulator of claim 1, further comprising: and the dustproof plate is arranged above the upper radiating plate.
6. The L-band high-power wideband differential phase-shift circulator of claim 1, further comprising: and a riser mounted outside the folded double T.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322523211.0U CN220830094U (en) | 2023-09-18 | 2023-09-18 | L-band high-power broadband difference phase shift circulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322523211.0U CN220830094U (en) | 2023-09-18 | 2023-09-18 | L-band high-power broadband difference phase shift circulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220830094U true CN220830094U (en) | 2024-04-23 |
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ID=90727115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322523211.0U Active CN220830094U (en) | 2023-09-18 | 2023-09-18 | L-band high-power broadband difference phase shift circulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220830094U (en) |
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2023
- 2023-09-18 CN CN202322523211.0U patent/CN220830094U/en active Active
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