CN206388830U - With high-power microwave strip transmission line circulator - Google Patents
With high-power microwave strip transmission line circulator Download PDFInfo
- Publication number
- CN206388830U CN206388830U CN201621292281.3U CN201621292281U CN206388830U CN 206388830 U CN206388830 U CN 206388830U CN 201621292281 U CN201621292281 U CN 201621292281U CN 206388830 U CN206388830 U CN 206388830U
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- CN
- China
- Prior art keywords
- circulator
- microwave
- transmission line
- strip
- microwave ferrite
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses with high-power microwave strip transmission line circulator, include housing and the lower permanent magnet being sequentially placed into it, lower metal pole piece, lower microwave ferrite, strip line center conductor, upper microwave ferrite, upper metal pole piece, upper permanent magnet, it is fixed thereon by lid, the strip line center conductor is close to the upper surface of lower microwave ferrite and the lower surface of upper microwave ferrite in a coaxial fashion；The strip line center conductor includes three knot of the falling Y resonators and three inductive type transmission lines in 120 degree of angle arrangements, each inductive type transmission line and Jie Liangge L-shaped branch matching microstrip line.Its optimization design ensures the characteristic of the steady operation under high electric field, it is ensured that microstrip line circulator possesses broadband high-power performance；The minimum creep distance problem of high electric field is also solved, product breakdown electric field is improved.
Description
Technical field
The utility model is related to the Microwave Iron Oxide Elements of wireless communications application, more particularly to a kind of with high-power micro-
Ripple strip transmission line circulator.
Background technology
Microwave ferrite circulator is a kind of unidirectional device with three or more ports, it include microwave ferrite,
Strip line center conductor circuit, ground connection pole piece and permanent magnet.Due to the gyromagnetic effect by the magnetized microwave ferrite of bias field
Effect, into first port electromagnetic wave energy go in ring to second port output, and with the 3rd port isolation.
It would generally expect to transmit high power in microwave circulator, low insertion loss is minimized with size, while with wireless
The rapid raising that Communications Market is required high Capacity Communication System, it is desirable to which microwave circulator can handle big in broad frequency range
Power signal, and the working band of microwave ferrite circulator is obtained broadening.But it is due to the limitation and ring of circuit design
The limitation of the Miniaturization Design of shape device size, the transimission power of circulator is very limited.
In the distribution emulated from electric-field intensity the, it is apparent that position at interface of being opened a way in the high frequency that branch matches microstrip line
Put, be electric-field intensity most strong region, and the former design of circulator microstrip circuit center conductor matches the height of microstrip line because of branch
The border of the position away from microwave ferrite at frequency open circuit interface is within 1mm, and circulator microstrip circuit center conductor (connects with outer conductor
Ground) distance greatly be both less than 1mm, in view of the breakdown voltage (air puncture voltage is generally 3kV/mm) of air is far smaller than micro-
The ferritic breakdown voltage of ripple, and have the effect of high pressure minimum creep distance, this results in actual breakdown voltage of circulator etc.
Then the breakdown voltage of below 1mm air, most of circulator all concentrates on branch's matching microstrip line in high-power puncture
The position at high frequency open circuit interface, this just makes the use of the circulator of such design under high power conditions there is larger risk.
Utility model content
The purpose of this utility model is to overcome the shortcomings of that prior art is present there is provided one kind with high-power microstrip
Transmission line circulator.
The purpose of this utility model is achieved through the following technical solutions：
With high-power microwave strip transmission line circulator, feature is：Comprising housing and under being sequentially placed into it
Permanent magnet, lower metal pole piece, lower microwave ferrite, strip line center conductor, upper microwave ferrite, upper metal pole piece, on forever
Long magnet, is fixed, the upper table of the strip line center conductor in a coaxial fashion with lower microwave ferrite by lid thereon
The lower surface of face and upper microwave ferrite is close to；The strip line center conductor includes three knots of falling Y in 120 degree of angle arrangements
Resonator and three inductive type transmission lines, each inductive type transmission line and Jie Liangge L-shaped branch matching microstrip line.
Further, it is above-mentioned that there is high-power microwave strip transmission line circulator, wherein, three inductive types are passed
120 degree of angles are radial is respectively connecting to circulator port with impartial for defeated line.
Further, it is above-mentioned that there is high-power microwave strip transmission line circulator, wherein, the lower microwave ferrite
With upper microwave ferrite in cylinder.
Further, it is above-mentioned that there is high-power microwave strip transmission line circulator, wherein, the L-shaped branch matching
The position at the high frequency open circuit interface of microstrip line is with the distance on upper microwave ferrite and the border of lower microwave ferrite in more than 3mm.
The utility model has significant advantage and beneficial effect compared with prior art, embodies in the following areas：
Optimization design ensures the characteristic of the steady operation under high electric field, it is ensured that it is high that microstrip line circulator possesses broadband
Power-performance；The 120 degree of knot of falling Y resonators have the strip line microstrip circuit of Broadband Matching, inductive type transmission line and L-shaped
Branch matches microstrip line, and the distance that branch is matched into the high frequency open circuit interface of microstrip line and the border of microwave ferrite is increased to
More than 3mm, solves the problems, such as the minimum creep distance of high electric field, departs from the breakdown electric field of circulator and is closed with air puncture voltage
Connection problem and it is only relevant with microwave ferrite breakdown voltage, and then substantially increase the breakdown electric field of product, solve high power
The problem of device size of circulator is limited, manufacturing cost is low, and function is remarkable, ease in use.
Brief description of the drawings
Fig. 1：The decomposition texture schematic diagram of the utility model circulator；
Fig. 2：The structural representation of strip line center conductor.
The implication of each reference see the table below in figure：
Embodiment
In order to be more clearly understood to technical characteristic of the present utility model, purpose and effect, accompanying drawing is now compareed detailed
Illustrate specific embodiment.
As shown in Figure 1 and Figure 2, with high-power microwave strip transmission line circulator, comprising housing 1 and it is sequentially placed into
Lower permanent magnet 2, lower metal pole piece 3, lower microwave ferrite 4, strip line center conductor 5, upper microwave ferrite 9 in it, on
Metal pole piece 10, upper permanent magnet 11, are fixed by lid 12 thereon, and the strip line center conductor 5 is in a coaxial fashion
It is close to the upper surface of lower microwave ferrite 4 and the lower surface of upper microwave ferrite 9；The strip line center conductor 5 includes three
The knot of the falling Y resonator 7 and three inductive type transmission lines 6 only arranged in 120 degree angles, each inductive type transmission line simultaneously connect two
Microstrip line 8 is matched for the L-shaped branch that frequency is matched, and 120 degree of angles are radial connects respectively with impartial for three inductive type transmission lines 6
It is connected to circulator port.
Its optimization design ensures the characteristic of the steady operation under high electric field, it is ensured that microstrip line circulator possesses width
Band high power performance.
Lower microwave ferrite 4 and upper microwave ferrite 9 are in cylinder, the half of lower microwave ferrite 4 and upper microwave ferrite 9
Footpath is at least big as the radius that the central point that open circuit parallel circuit extends to strip line center conductor 5 is defined.
Lower metal pole piece 3 and upper metal pole piece 10 as strip transmission line ground plane and turn on the top and bottom of shell
Portion, while covering the surface of microwave ferrite, microwave ferrite is magnetized together with permanent magnet.
The port end of inductive type transmission line 6 extends the electric conductor for being connected to circulator port, and two are used for frequency and match
Branch matching microstrip line extended with opposite side.
The position at the high frequency open circuit interface of L-shaped branch matching microstrip line 8 and upper microwave ferrite 9 and lower microwave ferrite 4
Border distance in more than 3mm.
Above-mentioned microwave strip transmission line circulator, the 120 degree of knot of falling Y resonators have the strip line micro-strip electricity of Broadband Matching
Road, inductive type transmission line and L-shaped branch's matching microstrip line, branch are matched high frequency open circuit interface and the microwave of microstrip line
The distance on ferritic border increases to more than 3mm, solves the minimum creep distance of high electric field, makes the breakdown electric field of circulator
Depart from air puncture voltage related question and it is only relevant with microwave ferrite breakdown voltage, and then substantially increase hitting for product
Electric field is worn, the problem of device size for solving high power circulator is limited, manufacturing cost is low, and function is remarkable, ease in use.
It should be noted that：Preferred embodiment of the present utility model is the foregoing is only, this practicality is not limited to
New interest field；Description more than simultaneously, should can understand and implement for the special personage of correlative technology field, therefore its
It should be included in claim without departing from the equivalent change or modification that are completed under the spirit disclosed in the utility model
In.
Claims (4)
1. with high-power microwave strip transmission line circulator, it is characterised in that：Comprising housing and it is sequentially placed into it
Lower permanent magnet, lower metal pole piece, lower microwave ferrite, strip line center conductor, upper microwave ferrite, upper metal pole piece, on
Permanent magnet, is fixed by lid thereon, and the strip line center conductor is upper with lower microwave ferrite in a coaxial fashion
The lower surface of surface and upper microwave ferrite is close to；The strip line center conductor includes three Y in 120 degree of angle arrangements
Tie resonator and three inductive type transmission lines, each inductive type transmission line and Jie Liangge L-shaped branch matching microstrip line.
2. according to claim 1 have high-power microwave strip transmission line circulator, it is characterised in that：Described three
120 degree of angles are radial is respectively connecting to circulator port with impartial for inductive type transmission line.
3. according to claim 1 have high-power microwave strip transmission line circulator, it is characterised in that：It is micro- under described
Ripple ferrite and upper microwave ferrite are in cylinder.
4. according to claim 1 have high-power microwave strip transmission line circulator, it is characterised in that：The L-shaped
The position at the high frequency open circuit interface of branch's matching microstrip line and the distance of upper microwave ferrite and the border of lower microwave ferrite exist
More than 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621292281.3U CN206388830U (en) | 2016-11-28 | 2016-11-28 | With high-power microwave strip transmission line circulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621292281.3U CN206388830U (en) | 2016-11-28 | 2016-11-28 | With high-power microwave strip transmission line circulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206388830U true CN206388830U (en) | 2017-08-08 |
Family
ID=59487634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621292281.3U Expired - Fee Related CN206388830U (en) | 2016-11-28 | 2016-11-28 | With high-power microwave strip transmission line circulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206388830U (en) |
-
2016
- 2016-11-28 CN CN201621292281.3U patent/CN206388830U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170808 Termination date: 20201128 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |