CN109216850A - A kind of eight road power combing of ridge waveguide microstrip probe/power division network - Google Patents
A kind of eight road power combing of ridge waveguide microstrip probe/power division network Download PDFInfo
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- CN109216850A CN109216850A CN201811072557.0A CN201811072557A CN109216850A CN 109216850 A CN109216850 A CN 109216850A CN 201811072557 A CN201811072557 A CN 201811072557A CN 109216850 A CN109216850 A CN 109216850A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/12—Coupling devices having more than two ports
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Abstract
The present invention discloses a kind of eight road power combing of ridge waveguide microstrip probe/power division network, including the printed board of planar microstrip probe, the first box body, the second box body and inter panel, the printed board of planar microstrip probe signal function will divide to two-way all the way or two paths of signals is synthesized signal all the way；The metal through slot of first metal groove of the first box body, the second metal groove of the second box body and inter panel forms the I/O port of ridge waveguide cavity and double ridged waveguide；Double ridged waveguide is converted to two single ridged waveguides by ridge waveguide cavity and inter panel, and the end of two single ridged waveguides is respectively fixed with two planar microstrip probe printed boards；Four planar microstrip probe printed boards are equipped with signal I/O port, and signal is coupled to planar microstrip probe printed board by microstrip probe.Eight road power combing power division networks of the invention are small in size, and covering frequency range is wide, and planar microstrip probe printed board form is simple, size is small, covering frequency range is wide, are applicable to all kinds of waveguide synthesis/power division networks.
Description
Technical field
The invention belongs to wireless communication fields, and in particular to a kind of eight road power combing of ridge waveguide microstrip probe/function subnetting
Network.
Background technique
In present mobile communication technology, high power solid state power amplifier is important component part.Single solid-state amplifier
Output power is limited, to obtain bigger output power, needs to carry out power combing.Synthesis/power division network is as a kind of basic
Power combing unit, a series of performance of the indexs such as insertion loss, amplitude-phase consistency and power capacity for power combing
There is important influence.Traditional plane combiner circuit causes combined coefficient low, especially broad-band multipath since own loss is big
When synthesis, combined coefficient can be further decreased, while power amplifier volume is big.
Currently, quasi- space combination/power division network is gradually applied in all kinds of solid state power amplifiers, advantage since it is lost small
Have: space and planar circuit combine, combined coefficient height and high power etc..Existing quasi- space combination/power division network way of realization
Mainly have coaxially with microstrip probe and rectangular waveguide and two kinds of microstrip probe, coaxial form is unfavorable for the integrated of Wave guide system, adds
Work and matching requirements are very high, and coaxial structure type determines that its heat dissipation performance is poor, and it is poor that there are reliability and stability
The disadvantages of；And rectangular waveguide forms then and there is the disadvantages of covering frequency range is narrow, volume and weight is larger, high production cost.
Summary of the invention
In order to solve the above problems existing in the present technology, it is an object of that present invention to provide a kind of ridge waveguide microstrip probes eight
Road power combing/power division network.
The technical scheme adopted by the invention is as follows:
A kind of eight road power combing of ridge waveguide microstrip probe/power division network, including the printed board of planar microstrip probe, the first box
Body, the second box body and inter panel, the planar microstrip probe printed board will all the way signal function point to two-way or by two paths of signals
Synthesize signal all the way；
First box body and the second box body mirror symmetry it is separately fixed at the upper and lower surfaces of inter panel,
The surface that one box body contacts inter panel is equipped with the first metal groove, and the surface that the second box body contacts inter panel is equipped with the second gold medal
Belong to groove, inter panel be equipped with simultaneously run through inter panel upper and lower surfaces and respectively with the first metal groove and second
The metal through slot of metal groove perforation, the first metal groove, the second metal groove and metal through slot position are correspondingly formed ridge waveguide
Cavity and respectively the front end of the first box body, the second box body and inter panel be equipped with notch, by the first metal groove, the second metal
The I/O port of double ridged waveguide is collectively formed in the notch of groove and metal through slot；
Double ridged waveguide is converted to two single ridged waveguides, the end of two single ridged waveguides by the ridge waveguide cavity and inter panel
End is respectively fixed with two planar microstrip probe printed boards, and a planar microstrip probe printed board of an end is set to the first box
Between body and inter panel and another planar microstrip probe printed board is set between the second box body and inter panel；
Four planar microstrip probe printed boards are arranged towards inter panel with microstrip probe and extend to function
Rate synthesis/power division network rear end is simultaneously equipped with signal I/O port, the microstrip probe of planar microstrip probe printed board in rear end
In the first metal groove and the second metal groove, it is therefore an objective to double ridge ripples will be entered by the I/O port of double ridged waveguide
The signal led is coupled to planar microstrip probe printed board by microstrip probe.
The working principle of the invention: signal enters double ridged waveguide by the I/O port of double ridged waveguide, then passes through ridge ripple
Guide cavity body is converted to two single ridged waveguides, realizes two paths of signals synthesis/function point spatially, then signal is coupled to planar microstrip
The microstrip probe of probe printed board, then by planar microstrip probe printed board function point to two-way, directly can with coaxial line or
Amplifier is cascaded, and finally realizes eight road function point, while can also realize the power combing of eight-in-one.
Four planar microstrip probe printed board shape and structures are identical with size, the first box body and the second box body and inter panel
Fixed mode is to be connected by screw to or by being adhesively fixed.
Specifically, first box body and the second cassette shapes structure are identical, and the first box body and the second box body are completely covered
The upper and lower surfaces of inter panel, the upper and lower surfaces of inter panel are the plane being parallel to each other, the first box body and
The surface that second box body is contacted with the upper and lower surfaces of inter panel is also plane.
It is designed to plane, can be radiated by the plane, the design of the first box body, the second box body and inter panel plane
Engineer application is high, than coaxial easy to process and assembly.
Further, the width of the metal through slot is less than the width of the first metal groove and the second metal groove and in slot
Mouth forms the I/O port of double ridged waveguide；First metal groove, the second metal groove and metal through slot include by slot
The first segment slot that rearward extends at mouthful, and be connected to and extend round about respectively with first segment slot rear end simultaneously second
The second segment slot and third section slot of the first box body and the second box body are fixed in section slot and third section slot, planar microstrip probe printed board
End.
The shape of first metal groove, the second metal groove and metal through slot is T-type or Y type.
Still further, the planar microstrip probe printed board is fixed on the first box body by way of being bonded or being sintered
On the second box body.
In addition, the table of the upper and lower surfaces of the inter panel, the first box body and the second box body contact inter panel
Face corresponding position is equipped with the pockets for accommodating the printed board of planar microstrip probe.
Planar microstrip probe printed board includes medium substrate, with the microstrip probe set on medium substrate one side, transition matching
Section, the first microstrip transmission line, the second microstrip transmission line, third microstrip transmission line, and the third set on medium substrate another side
Metal layer；
One end of the microstrip probe connect with one end of transition matching section and the other end and the first microstrip transmission line one
End connection, the other end of the first microstrip transmission line are connect with one end of the second microstrip transmission line and third microstrip transmission line respectively,
The other end of first microstrip transmission line and the second microstrip transmission line extends to medium substrate edge；
The third metal layer is as microstrip transmission line reference ground and position corresponds to transition matching section, the transmission of the first micro-strip
Line, the second microstrip transmission line and third microstrip transmission line.
Second microstrip transmission line and third microstrip transmission line as planar microstrip probe printed board signal input/it is defeated
Outlet.
The shape of microstrip probe is adjusted according to different types of waveguide.Transition matching section be one section of entirety or two sections with
And the matching minor matters of multistage, to guarantee to realize matched well between waveguide, microstrip probe and the first microstrip transmission line, according to difference
The waveguide of type, it is only necessary to optimize and revise microstrip probe and transition matching section.
Planar microstrip probe printed board form of the invention is simple, size is small, covering frequency range is wide, integrally adds with microstrip probe
Work molding, is applicable to all kinds of waveguide synthesis/power division networks.
Specifically, the side backwards that second microstrip transmission line and third microstrip transmission line are connect with the first microstrip transmission line
And the first corner cut is arranged in the position of corresponding first microstrip transmission line, the first microstrip transmission line and the second microstrip transmission line and third are micro-
Band transmission line realizes ultra wide band matching by the first corner cut；Second microstrip transmission line and third microstrip transmission line and first micro-
The second corner cut and third corner cut is respectively set in positive side with transmission line connection.The purpose that corner cut is arranged is to guarantee that the first micro-strip passes
The width of defeated line, the second microstrip transmission line and third microstrip transmission line.
Preferably, the microstrip probe, transition matching section, the first microstrip transmission line, the second microstrip transmission line and
Three microstrip transmission line one-pass moldings.
Preferably, the impedance of first microstrip transmission line is 20 ohm -30 ohm, the second microstrip transmission line and third
The impedance of microstrip transmission line is 50 ohm.
Second microstrip transmission line and third microstrip transmission line include that one end is connect and another with the first microstrip transmission line
The first segment that one end extends round about, and the second segment connecting with the other end of first segment, medium substrate are micro- with first
It is micro- that the width of shape correspondence and corresponding position with transmission line, the second microstrip transmission line and third microstrip transmission line is greater than first
Band transmission line, the second microstrip transmission line and third microstrip transmission line.
Adopt the structure is to arrange the printed board of this planar microstrip probe and coaxial line or amplifier to reduce volume
Cloth position is shared to be reduced.
The first segment is vertical with the first microstrip transmission line, and second segment is parallel with the first microstrip transmission line, and the second micro-strip passes
Defeated line and third microstrip transmission line collectively constitute the opening direction of a U-shaped structure and U-shaped structure backwards to the first microstrip transmission line.
For placing, the width of coaxial line perhaps amplifier U-shaped structure treats as axis or amplifier places spacing in the slot of U-shaped structure
Depending on.
Adopt the structure is to make the printed board of this planar microstrip probe and coaxial line or amplification to make volume minimization
Device arrangement position occupied area minimizes.
Further, the junction of the first segment and second segment is equipped with chamfering.The effect of chamfering is to reach standing wave
It is optimal.
Preferably, the medium substrate is microwave base plate, it is made of soft base material or hard substrate.The thickness of medium substrate
Degree, dielectric constant determine the width of the first microstrip transmission line, the second microstrip transmission line and third microstrip transmission line.
When medium substrate uses soft base material, the one side and another side of medium substrate further respectively have the first metal layer and the
Two metal layers, the first metal layer are set to microstrip probe and the other end of transition matching section connecting pin and do not contact with microstrip probe,
Second metal layer and the first metal layer are symmetrical arranged centered on medium substrate.
The first metal layer and second metal layer primarily serve the effect of auxiliary installation.
Second metal layer at a distance from third metal layer depending on different types of waveguide, and the length phase with waveguide narrow side
Deng.
The present invention uses the working principle of above-mentioned planar microstrip probe printed board: signal passes through the input of double ridged waveguide/defeated
Outlet enters double ridged waveguide, then is carried down by T junction/Y type and be changed to two single ridged waveguides, realizes that two paths of signals spatially closes
At/function point, then signal is coupled to the microstrip probe of planar microstrip probe printed board, then is directly matched to by transition matching section
First microstrip transmission line in 25 Europe, then pass through the second micro- of the first corner cut, the second corner cut and third corner cut function point to 50 Europe of two-way
Band transmission line and third microstrip transmission line, can directly be cascaded with the coaxial line or amplifier in 50 Europe, finally be realized
Eight road function point, while can also realize the power combing of eight-in-one.
The invention has the benefit that
Eight road power combing power division networks of the invention are small in size, and covering frequency range is wide.Using eight tunnel of broadband of double ridged waveguide
Eight tunnel synthesis/function point of 8GHz~18GHz may be implemented in synthesis/power division network, and standard rectangular waveguide BJ100 frequency range is
8.2~12.5GHz, BJ120 frequency range are 9.84~15GHz, BJ140 frequency range 12GHz~18GHz, i.e., using double ridges
The standard rectangular waveguide that eight tunnel synthesis of broadband/power division network of waveguide can be compatible with tri- kinds of models of BJ100, BJ120 and BJ140 is closed
At/power division network.
Planar microstrip probe printed board of the invention is applicable to waveguide-micro-strip Single probe, the double probes of waveguide-micro-strip and wave
Lead-three probe of micro-strip etc. is in synthesis/function subnetting road of multiple microstrip probes；Planar microstrip probe printed board form is simple,
Size is small, covering frequency range is wide, is integrally machined molding with microstrip probe, is applicable to all kinds of waveguide synthesis/power division networks.
Detailed description of the invention
Fig. 1 is the present invention-embodiment front end face structural schematic diagram.
Fig. 2 is the A-A schematic cross-sectional view of Fig. 1.
Fig. 3 is the B-B schematic cross-sectional view of Fig. 1.
Fig. 4 is the D-D schematic cross-sectional view of Fig. 1.
Fig. 5 is the C-C schematic cross-sectional view of Fig. 1.
Fig. 6 is the F-F schematic cross-sectional view of Fig. 1.
Fig. 7 is the structural schematic diagram (no ridge waveguide ring flange) of the first box body of the present invention-embodiment.
Fig. 8 is the present invention-embodiment inter panel structural schematic diagram (no ridge waveguide ring flange).
Fig. 9 is the present invention-embodiment planar microstrip probe printed board positive structure schematic.
Figure 10 is the present invention-embodiment planar microstrip probe printed board structure schematic diagram.
Figure 11 is the present invention-embodiment planar microstrip probe printed board simulation result schematic diagram.
In figure: A1- the first planar microstrip probe printed board；A2- the second planar microstrip probe printed board；The second plane of A3-
Microstrip probe printed board；A4- fourth plane microstrip probe printed board；1- microstrip probe；2- transition matching section；The first micro-strip of 3- passes
Defeated line；The second microstrip transmission line of 401-；402- third microstrip transmission line；5- medium substrate；The first corner cut of 6-；701- second is cut
Angle；702- third corner cut；801- the first metal layer；802- second metal layer；9- third metal layer；The first box body of 10-；1001-
First metal groove；The second box body of 11-；The second metal groove of 1101-；12- inter panel；1201- metal through slot；The bis- ridges of 13-
The I/O port of waveguide；14- pockets；15- ridge waveguide ring flange.
Specific embodiment
With reference to the accompanying drawing and specific embodiment the present invention is further elaborated.
Embodiment:
As shown in figs. 1-11, eight road power combing synthesis of a kind of ridge waveguide microstrip probe/power division network of the present embodiment, packet
Include the printed board of planar microstrip probe, the first box body 10, the second box body 11 and inter panel 12.
First box body 10, the second box body 11 and inter panel 12 are all made of metal material and are made, and surface can be silver-plated or gold-plated.
Wherein, the printed board of planar microstrip probe is four and shape and structure is identical with size, is respectively: the first planar microstrip
Probe printed board A1, the second planar microstrip probe printed board A2, third planar microstrip probe printed board A3 and fourth plane micro-strip
Probe printed board A4.
First box body 10 is identical with 11 shape and structure of the second box body, and mirror symmetry be separately fixed at inter panel 12
Upper and lower surfaces.In the present embodiment, the first box body 10 and the second box body 11 be completely covered inter panel 12 upper surface and
Lower surface, the upper and lower surfaces of inter panel 12 are the plane being parallel to each other, and the first box body 10 and the second box body 11 are in
Between cover board 12 upper and lower surfaces contact surface be also plane.
In the present embodiment, the first box body 10 and the second box body 11 and the fixed mode of inter panel 12 are to be connected by screw
It connects.It can also be by being adhesively fixed.
The surface that first box body 10 contacts inter panel 12 is equipped with the first metal groove 1001, and the second box body 11 contacts centre
The surface of cover board 12 is equipped with the second metal groove 1101, and inter panel 12 is equipped with metal through slot 1201, and the metal through slot 1201 is same
When through inter panel 12 upper and lower surfaces and passed through respectively with the first metal groove 1001 and the second metal groove 1101
Logical, the first metal groove 1001, the second metal groove 1101 and 1201 position of metal through slot are correspondingly formed ridge waveguide cavity and divide
It is not equipped with notch in the front end of the first box body 10, the second box body 11 and inter panel 12, by the first metal groove 1001, the second gold medal
The I/O port 13 of double ridged waveguide is collectively formed in the notch of category groove 1101 and metal through slot 1201, and in double ridged waveguide
13 surrounding of I/O port forms ridge waveguide ring flange 15.
The width of metal through slot 1201 is formed less than the width of the first metal groove 1001 and the second metal groove 1101
The I/O port of double ridged waveguide, the first metal groove 1001, the second metal groove 1101 and metal through slot 1201 include by
The first segment slot rearward extended at notch, and be connected to first segment slot rear end and extend round about respectively simultaneously
Two sections of slots and third section slot.
In the present embodiment, the shape of the first metal groove 1001, the second metal groove 1101 and metal through slot 1201 is T
Type or Y type.
Illustrate: upper surface described in the invention, lower surface, front-end and back-end are relative position.
It is formd by the first metal groove 1001, the second metal groove 1101, metal through slot 1201 and inter panel 102
Double ridged waveguide-T junction/Y type knot-single ridged waveguides conversion, realizes two paths of signals synthesis/function point spatially.
The present invention is fixed to inside system by ridge waveguide ring flange 15, ensure that synthesis/power division network stability
And reliability.
A plane is fixed in the second segment slot of first metal groove 1001 of the first box body 10 and third section slot end respectively
Microstrip probe printed board, the planar microstrip probe printed board are set between the first box body 10 and inter panel 12, the second box body 11
The second metal groove 1101 second segment slot and third section slot end fix a planar microstrip probe printed board respectively, this is flat
Face microstrip probe printed board is set between the second box body 11 and inter panel 12.
Planar microstrip probe printed board is fixed on the first box body 10 and the second box body 11 by way of being bonded or being sintered
On.
Four planar microstrip probe printed boards are set with microstrip probe 1 towards inter panel 12 and by front direction rear direction
It sets, four planar microstrip probe printed boards extend to rear end and are equipped with signal I/O port, inter panel 12 in rear end
Upper and lower surfaces, the first box body 10 and the second box body 11 contact inter panel 12 surface corresponding position be equipped with receiving
The pockets 14 of planar microstrip probe printed board.
The microstrip probe 1 of planar microstrip probe printed board is set to the first metal groove 1001 and the second metal groove 1101
In, it is therefore an objective to the signal for entering double ridged waveguide by the I/O port 13 of double ridged waveguide is coupled to by microstrip probe 1 flat
Face microstrip probe printed board.
Double ridged waveguide is WRD650 double ridged waveguide, and the signal I/O port of planar microstrip probe printed board rear end is same
Axis is microstrip line.Notch by the first metal groove 1001, the second metal groove 1101 and metal through slot 1201 is common
The I/O port 13 of the double ridged waveguide of formation, if the printed board of planar microstrip probe is just as output as input；If as
Output, the printed board of planar microstrip probe is just as input, the I/O port 13 of double ridged waveguide and plane microstrip probe printed board
It is reciprocity.
High-power synthetic technology high-efficient, easy of integration is quasi- space power synthesis technology at present, mainly in waveguide into
Row power combing.But waveguide is space structure, and the installation and use of amplifier are planar circuit, therefore planar circuit and space
A kind of switch transition is needed between structure.Traditional coaxial probe interim form is very high to processing and matching requirements while same
Transition and conversion is also needed between axis probe and microstrip circuit, loss is increased, reduces transfer efficiency.Microstrip probe can be direct
It is connect with rear class microstrip circuit, convenient for integrated, therefore waveguide-microstrip probe interim form is current waveguide power synthetic technology
In main interim form.Common waveguide-microstrip probe be all be matched to from the direct transition of waveguide 50 Europe transmission lines again with put
Big device cascade, therefore a microstrip probe can only generally be cascaded with an amplifier.To realize multichannel synthesis, usual micro-strip is visited
Cascaded again after needle a power splitter function be divided into after two-way again with the cascade of two amplifiers or direct multi-module integration, body
The disadvantages of long-pending and weight is big, high production cost.
Single planar microstrip probe printed board is by the TE in single ridged waveguides10Mould is converted to the quasi- TEM mould of plane.Specifically,
The structure of planar microstrip probe printed board of the invention is as follows:
Planar microstrip probe printed board includes microstrip probe 1, transition matching section 2, the first microstrip transmission line 3, the second micro-strip
Transmission line 401, third microstrip transmission line 402, medium substrate 5, the first corner cut 6, the second corner cut 701, third corner cut 702, first
Metal layer 801, second metal layer 802, third metal layer 9.
Microstrip probe 1, transition matching section 2, the first microstrip transmission line 3, the second microstrip transmission line 401, the transmission of third micro-strip
Line 402 and the first metal layer 801 are set to the one side of medium substrate 5 simultaneously, and second metal layer 802 and third metal layer 9 are set to and are situated between
The another side of matter substrate 5.
Further, the first metal layer 801 is set to one end of microstrip probe 1 and does not contact with microstrip probe 1, transition matching
One end of section 2 is connect with the other end of microstrip probe 1 and the other end is connect with one end of the first microstrip transmission line 3, the first micro-strip
The other end of transmission line 3 is connect with one end of the second microstrip transmission line 401 and third microstrip transmission line 402 respectively, the second metal
Layer 802 and the first metal layer 801 are symmetrical arranged centered on medium substrate 5, and third metal layer 9 is covered on the another of medium substrate 5
On one side and position corresponds to transition matching section 2, the first microstrip transmission line 3, the second microstrip transmission line 401 and third microstrip transmission line
402。
Second microstrip transmission line 401 and third microstrip transmission line 402 are used as signal I/O port.Third metal layer 9 is made
It is microstrip transmission line with reference to ground, third metal layer 9 is simultaneously and the first metal layer 801, second metal layer 802 pass through bonding or sintering
The probe printed board of this planar microstrip is fixed on box body.
Wherein, second metal layer 802 with the length of 9 distance a of third metal layer depending on different types of waveguide, and with
The equal length of waveguide narrow side.The shape of microstrip probe 1 is adjusted according to different types of waveguide.Transition matching section 2 is one
Section is whole or the matching minor matters of two sections and multistage, to guarantee to realize between waveguide, microstrip probe 1 and the first microstrip transmission line 3
Matched well, according to different types of waveguide, it is only necessary to optimize and revise microstrip probe 1 and transition matching section 2.
Above-mentioned waveguide is rectangular waveguide, circular waveguide, ridge waveguide or coaxial cavity, planar microstrip probe printing of the invention
Plate is applicable to waveguide-micro-strip Single probe, and waveguide-micro-strip three probe of double probes and waveguide-micro-strip etc. has multiple microstrip probes
Synthesis/function subnetting road in.
Medium substrate 5 is microwave base plate, is made of soft base material or hard substrate, and soft base material is RO5880, and hard substrate is
RO4350, the thickness of medium substrate 5, dielectric constant determine the first microstrip transmission line 3, the second microstrip transmission line 401 and third
The width of microstrip transmission line 402.When medium substrate 5 is using hard substrate, it is convenient to omit the first metal layer 801 and second metal layer
Medium substrate 5 between 802 and the first metal layer 801 and second metal layer 802.Because when medium substrate 5 uses soft base material
When, the first metal layer 801 and second metal layer 802 primarily serve the work that auxiliary is installed on the first box body 10 and the second box body 11
With the first metal layer 801 and second metal layer 802 are equipped with ground hole.
The impedance of first microstrip transmission line 3 is 20 ohm -30 ohm, when practical application, and it is appropriate to be carried out according to matching demand
Adjustment, most preferably 25 ohm of the present embodiment.The impedance of second microstrip transmission line 401 and third microstrip transmission line 402 is 50 ohm.
Second microstrip transmission line 401 and third microstrip transmission line 402 extend to 5 edge of medium substrate in the opposite direction,
Second microstrip transmission line 401 and third microstrip transmission line 402 and the first microstrip transmission line 3 connect backwards to side and corresponding first micro-
The first corner cut 6 is arranged in position with transmission line 3, in the second microstrip transmission line 401 and third microstrip transmission line 402 and the first micro-strip
The second corner cut 701 and third corner cut 702 is respectively set at left and right sides of the positive side that transmission line 3 connects.
First microstrip transmission line 3 and the second microstrip transmission line 401 and third microstrip transmission line 402 are real by the first corner cut 6
Existing ultra wide band matching, simulation result is as shown in figure 11, and frequency can cover 0.5GHz-40GHz.
First corner cut 6 is triangle or trapezoidal, and the second corner cut 701 and third corner cut 702 are to cut right angle or circle of contact angle.
Second microstrip transmission line 401 and third microstrip transmission line 402 include, one end vertical with the first microstrip transmission line 3
With the first first segment that microstrip transmission line 3 is connect and the other end extends round about, and it connect with the other end of first segment
And the second segment parallel with the first microstrip transmission line 3.The junction of first segment and second segment is equipped with chamfering, the second microstrip transmission line
401 and third microstrip transmission line 402 collectively constitute the opening direction of a U-shaped structure and U-shaped structure and transmitted backwards to the first micro-strip
Line 3.
Chamfering is right angle or fillet.The effect of chamfering is to be optimal standing wave.
Match with the shape of the second microstrip transmission line 401 and third microstrip transmission line 402, the medium substrate of corresponding position
5 be also U-shaped structure, for placing coaxial line or amplifier in the slot of the U-shaped structure, the width of U-shaped structure treat as axis or
Person's amplifier is placed depending on spacing.The medium substrate of microstrip probe 1, transition matching section 2 and the first microstrip transmission line 3 is installed in straight
Line style and vertical with the medium substrate of U-shaped structure.
The medium substrate 5 adopted the structure is to make the printed board of this planar microstrip probe and coaxial line to reduce volume
Or amplifier arrangement position occupied area minimizes.
The working principle of the invention: signal enters double ridged waveguide by the I/O port 13 of double ridged waveguide, then passes through T
Type knot/Y type, which is carried down, is changed to two single ridged waveguides, realizes two paths of signals synthesis/function point spatially, then signal is coupled to plane
The microstrip probe 1 of microstrip probe printed board, then pass through the first microstrip transmission line 3 that transition matching section 2 is directly matched to 25 Europe, then
Divided by the first corner cut 6, the second corner cut 701 and 702 function of third corner cut to second microstrip transmission line 401 and third in 50 Europe of two-way
Microstrip transmission line 402 can directly be cascaded with the coaxial line or amplifier in 50 Europe, finally realize eight road function point, together
When can also realize the power combing of eight-in-one.
Advantages of the present invention is as follows:
Eight road power combing power division networks of the invention are small in size, and covering frequency range is wide.Using the width of WRD650 double ridged waveguide
Eight tunnel synthesis/function that 8GHz~18GHz may be implemented with eight tunnel synthesis/power division network divides, and standard rectangular waveguide BJ100 frequency
Range is 8.2~12.5GHz, and BJ120 frequency range is 9.84~15GHz, BJ140 frequency range 12GHz~18GHz is adopted
The mark of tri- kinds of models of BJ100, BJ120 and BJ140 can be compatible with eight tunnel synthesis of broadband/power division network of WRD650 double ridged waveguide
Quasi-retangular wave leads synthesis/power division network.And WRD650 standard flange disc area is 35mm × 35mm, BJ100 standard flange disk
Product is 41.4mm × 41.4mm, i.e., in 8.2GHz~12.5GHz frequency range, ridge waveguide flange area is than standard waveguide method
Blue area has lacked 30%, raw here it is making eight tunnel synthesis of ridge waveguide broadband/power division network of the present invention be more conducive to batch
It produces.
Planar microstrip probe printed board form of the invention is simple, size is small, covering frequency range is wide, integrally adds with microstrip probe
Work molding, is applicable to all kinds of waveguide synthesis/power division networks, in low-frequency range and ultra wideband applications, since wavelength is longer, such as C
Band wavelength 75mm-37.5mm, X-band wavelength 37.5mm-25mm, Ku band wavelength 25mm-16.67mm, plane power splitter are long
Degree is generally higher than 1/4 wavelength, and size is larger, if it is bandwidth plane power splitter, then multistage matching is needed to carry out bandwidth broadning, meeting
Directly result in that plane power splitter size is larger, so that the structure size of entire synthesis/power division network is larger.However, in one kind
Planar microstrip probe printed board of the invention is applied in the ridge waveguide ultra-wide band 8GHz-18GHz power amplifier of WRD650, by original four
Road synthesis/function point mode is expanded as eight tunnel synthesis/function point mode, original volume 60mm × 63.5mm × 28mm, the volume after expansion
70mm × 76mm × 28mm, compared to the length of former four road synthesis mode power amplifiers and it is wide only increase by 20%, but output power improves 1 times.
The present invention is not limited to above-mentioned optional embodiment, anyone can show that other are various under the inspiration of the present invention
The product of form, however, make any variation in its shape or structure, it is all to fall into the claims in the present invention confining spectrum
Technical solution, be within the scope of the present invention.
Claims (10)
1. a kind of eight road power combing of ridge waveguide microstrip probe/power division network, it is characterised in that: printed including planar microstrip probe
Plate, the first box body (10), the second box body (11) and inter panel (12), the planar microstrip probe printed board will signal function all the way
Divide to two-way or two paths of signals is synthesized into signal all the way；
First box body and the second box body mirror symmetry it is separately fixed at the upper and lower surfaces of inter panel, the first box
The surface that body contacts inter panel is equipped with the first metal groove (1001), and the surface that the second box body contacts inter panel is equipped with second
Metal groove (1101), inter panel is equipped with runs through the upper and lower surfaces of inter panel and recessed with the first metal respectively simultaneously
The metal through slot (1201) of slot and the perforation of the second metal groove, the first metal groove, the second metal groove and metal through slot position
It is correspondingly formed ridge waveguide cavity and is equipped with notch in the front end of the first box body, the second box body and inter panel respectively, by the first gold medal
The I/O port (13) of double ridged waveguide is collectively formed in the notch for belonging to groove, the second metal groove and metal through slot；
Double ridged waveguide is converted to two single ridged waveguides, the end point of two single ridged waveguides by the ridge waveguide cavity and inter panel
Gu Ding there are two the printed board of planar microstrip probe, a planar microstrip probe printed board of an end be set to the first box body and
Between inter panel and another planar microstrip probe printed board is set between the second box body and inter panel；
Four planar microstrip probe printed boards are arranged towards inter panel with microstrip probe (1) and extend to power
Synthesis/power division network rear end is simultaneously equipped with signal I/O port in rear end, and the microstrip probe of planar microstrip probe printed board is set
In the first metal groove and the second metal groove.
2. eight road power combing of a kind of ridge waveguide microstrip probe/power division network according to claim 1, it is characterised in that:
First box body and the second cassette shapes structure are identical, and the upper surface of inter panel is completely covered in the first box body and the second box body
And lower surface, the upper and lower surfaces of inter panel are the plane being parallel to each other, the first box body and the second box body and middle cover
The surface of the upper and lower surfaces contact of plate is also plane.
3. eight road power combing of a kind of ridge waveguide microstrip probe/power division network according to claim 1, it is characterised in that:
The width of the metal through slot forms double ridged waveguide in notch less than the width of the first metal groove and the second metal groove
I/O port；First metal groove, the second metal groove and metal through slot include rearward being extended by notch
First segment slot, and the second segment slot and third section slot that are connected to first segment slot rear end and extend round about respectively simultaneously,
Second segment slot and the third section slot end of the first box body and the second box body are fixed in planar microstrip probe printed board.
4. eight road power combing of a kind of ridge waveguide microstrip probe/power division network according to claim 3, it is characterised in that:
The planar microstrip probe printed board is fixed on the first box body and the second box body by way of being bonded or being sintered.
5. eight road power combing of a kind of ridge waveguide microstrip probe/power division network according to claim 1, it is characterised in that:
The surface corresponding position of the upper and lower surfaces of the inter panel, the first box body and the second box body contact inter panel is all provided with
There are the pockets (14) for accommodating the printed board of planar microstrip probe.
6. eight road power combing of a kind of ridge waveguide microstrip probe/power division network according to claim 1, it is characterised in that:
The planar microstrip probe printed board includes medium substrate (5), with the microstrip probe (1) set on medium substrate one side, transition
With section (2), the first microstrip transmission line (3), the second microstrip transmission line (401) and third microstrip transmission line (402), and it is set to and is situated between
The third metal layer (9) of matter substrate another side；
One end of the microstrip probe is connect with one end of transition matching section and one end of the other end and the first microstrip transmission line connects
It connecing, the other end of the first microstrip transmission line is connect with one end of the second microstrip transmission line and third microstrip transmission line respectively, and first
The other end of microstrip transmission line and the second microstrip transmission line extends to medium substrate edge；
The third metal layer as microstrip transmission line with reference to ground and position correspond to transition matching section, the first microstrip transmission line,
Second microstrip transmission line and third microstrip transmission line；
The signal input/output of second microstrip transmission line and third microstrip transmission line as planar microstrip probe printed board
Mouthful.
7. eight road power combing of a kind of ridge waveguide microstrip probe/power division network according to claim 6, it is characterised in that:
Side and corresponding first micro-strip backwards that second microstrip transmission line and third microstrip transmission line are connected with the first microstrip transmission line
The first corner cut (6) are arranged in the position of transmission line；
The positive side that second microstrip transmission line and third microstrip transmission line are connect with the first microstrip transmission line is respectively set
Two corner cuts (701) and third corner cut (702).
8. eight road power combing of a kind of ridge waveguide microstrip probe/power division network according to claim 6, it is characterised in that:
Second microstrip transmission line and third microstrip transmission line include that one end is connect and the other end is to phase with the first microstrip transmission line
The first segment that opposite direction extends, and the second segment being connect with the other end of first segment, medium substrate and the first microstrip transmission line,
The shape of second microstrip transmission line and third microstrip transmission line is corresponding and the width of corresponding position be greater than the first microstrip transmission line,
Second microstrip transmission line and third microstrip transmission line.
9. eight road power combing of a kind of ridge waveguide microstrip probe/power division network according to claim 8, it is characterised in that:
The first segment is vertical with the first microstrip transmission line, and second segment is parallel with the first microstrip transmission line, the second microstrip transmission line and
Three microstrip transmission lines collectively constitute the opening direction of a U-shaped structure and U-shaped structure backwards to the first microstrip transmission line.
10. eight road power combing of a kind of ridge waveguide microstrip probe/power division network according to claim 6, it is characterised in that:
The medium substrate is microwave base plate, is made of soft base material or hard substrate；
When medium substrate use soft base material when, the one side and another side of medium substrate further respectively have the first metal layer (801) and
Second metal layer (802), the first metal layer are set to the other end of microstrip probe and transition matching section connecting pin and do not visit with micro-strip
Needle contact, second metal layer and the first metal layer are symmetrical arranged centered on medium substrate.
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| CN201811072557.0A CN109216850B (en) | 2018-09-14 | 2018-09-14 | Eight-path power synthesis/power division network of ridge waveguide microstrip probe |
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| CN110165350A (en) * | 2019-06-06 | 2019-08-23 | 西南应用磁学研究所 | Minimize waveguide coaxial connecter device |
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| CN110364801A (en) * | 2019-08-05 | 2019-10-22 | 中电科仪器仪表有限公司 | A kind of double probe structures and preparation method thereof based on ridge waveguide |
| CN110739913A (en) * | 2019-06-13 | 2020-01-31 | 中国工程物理研究院电子工程研究所 | ultra wide band schottky frequency doubler structure of second harmonic enhancement mode |
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| CN110767962B (en) * | 2019-10-30 | 2021-08-06 | 电子科技大学 | Circular waveguide TM11Mode exciter |
| CN110854495A (en) * | 2019-12-24 | 2020-02-28 | 盛纬伦(深圳)通信技术有限公司 | Coplanar port waveguide transition structure based on ridge waveguide coupling |
| CN111697302A (en) * | 2020-06-04 | 2020-09-22 | 广州程星通信科技有限公司 | Power combining device |
| CN112151927A (en) * | 2020-09-25 | 2020-12-29 | 绵阳天赫微波科技有限公司 | Double-ridge waveguide 4-path power synthesis amplifier |
| CN112151927B (en) * | 2020-09-25 | 2022-04-01 | 绵阳天赫微波科技有限公司 | Double-ridge waveguide 4-path power synthesis amplifier |
| CN112054276A (en) * | 2020-09-27 | 2020-12-08 | 中国工程物理研究院电子工程研究所 | Ridge waveguide-microstrip line transition circuit |
| CN116799465A (en) * | 2023-07-05 | 2023-09-22 | 西南科技大学 | Ultra-wideband square coaxial power distribution synthesis structure |
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