CN208353296U - microwave power combining amplifier - Google Patents
microwave power combining amplifier Download PDFInfo
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- CN208353296U CN208353296U CN201820764696.9U CN201820764696U CN208353296U CN 208353296 U CN208353296 U CN 208353296U CN 201820764696 U CN201820764696 U CN 201820764696U CN 208353296 U CN208353296 U CN 208353296U
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- power tube
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- support base
- conducting bar
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Abstract
The utility model relates to a kind of microwave power combining amplifiers, including radiating seat, support base, first antenna plate, cover board and the second antenna plate.Support base and radiating seat surround one first accommodating cavity jointly, first antenna plate is set in the first accommodating cavity, one end of the first heat conducting bar on radiating seat is protruded into the first through hole on first antenna plate, and it is connected to the back side of the first power tube, the heat of the first power tube is transmitted on radiating seat by the first heat conducting bar.Cover board and support base surround one second accommodating cavity jointly, and the second antenna plate is set in the second accommodating cavity, and one end of the second heat conducting bar on radiating seat is protruded into the second through-hole in the second antenna plate, is connected to the back side of the second power tube.The heat of second power tube can be transmitted on radiating seat by the second heat conducting bar, realized that the first power tube and the second power tube are radiated by radiating seat simultaneously, enormously simplified heat dissipation design, and then be conducive to the integrated of system, and can be suitably used for higher microwave frequency band.
Description
Technical field
The utility model relates to power amplifier techniques fields, more particularly to a kind of microwave power combining amplifier.
Background technique
With the rapid development of wireless communication, the use of microwave amplifier is become more and more popular, and by microwave amplifier
The restriction for the factors such as the output power of itself element is small, transmission loss is big, causes existing microwave amplifier in output power, body
The technical indicators such as product, weight, system suitability are often difficult to meet the application demand in the fields such as communication, radar.
Existing microwave amplifier includes two antenna plates, and two antenna plates are symmetrically placed, the power amplifier in two antenna plates
The front of pipe is oppositely arranged, so that the power tube in each antenna plate is both needed to a corresponding radiating piece, does not only result in microwave amplifier
Two opposite facing setting radiating pieces are needed, are unfavorable for the system integration, while can not be effectively applicable on higher microwave frequency band.
Utility model content
Based on this, it is necessary to be directed to upper problem, provide one kind and be more advantageous to the system integration, and can be applied to higher micro-
Microwave power combining amplifier in wave frequency section.
The side of a kind of microwave power combining amplifier, the microwave power combining amplifier offers waveguide input port,
The opposite other side offers wave guide outlet, and the microwave power combining amplifier includes:
Radiating seat, the second heat conducting bar for being provided with the first heat conducting bar and being set side by side with first heat conducting bar；
Support base, is set to the side of the radiating seat, and the support base and the radiating seat surround one first appearance jointly
Chamber is set, first heat conducting bar and second heat conducting bar are respectively positioned on radiating seat towards the side of the support base and are located at described
In first accommodating cavity, first accommodating cavity is connected with the waveguide input port and the wave guide outlet；
First antenna plate is set in first accommodating cavity, and the first power tube, institute are provided on the first antenna plate
It states and offers first through hole on first antenna plate, first power tube corresponds to the first through hole, first power tube
The back side with front and with the opposite facing setting in front, first heat conducting bar protrude into institute far from one end of the radiating seat
It states in first through hole, and is connected to the back side of first power tube；
Cover board is covered on the support base back on the side of the radiating seat, and the cover board and the support base are common
One second accommodating cavity is surrounded, second accommodating cavity is connected with the waveguide input port and the wave guide outlet；And
Second antenna plate is set in second accommodating cavity, and the second power tube, institute are provided in second antenna plate
It states and offers the second through-hole in the second antenna plate, second power tube corresponds to second through-hole, second power tube
The back side with front and with the opposite facing setting in front, the described one end of second heat conducting bar far from the radiating seat are successively worn
It crosses the first antenna plate, the support base and protrudes into second through-hole, to be connected to the back side of second power tube.
Above-mentioned microwave power combining amplifier has at least the following advantages:
When installation, first antenna plate is set in the first accommodating cavity, the first power tube is provided on first antenna plate, the
First through hole is offered in one antenna plate, the first heat conducting bar protrudes into the first through hole on first antenna plate far from one end of radiating seat
It is interior, and it is connected to the back side of the first power tube.Therefore, the heat that the first power tube generates can be transmitted to scattered by the first heat conducting bar
It radiates on hot seat.Second antenna plate is set in the second accommodating cavity, the second antenna plate is connected with the second power tube, and second
The second through-hole is offered in antenna plate, the separate one end of the second heat conducting bar sequentially passes through first antenna plate, support base and protrudes into
In two through-holes, to be connected to the back side of the second power tube.Therefore, the heat that the second power tube generates can be passed by the second heat conducting bar
It is delivered on radiating seat and radiates, realize that the first power tube and the second power tube are radiated by radiating seat simultaneously, and then can be with
The quantity for reducing radiating piece, is reduced to single radiating piece by traditional two radiating pieces of needs, and then is conducive to the integrated of system,
And allow the volume of microwave power combining amplifier and weight smaller.
In engineering, the first power tube and the second power tube are required to be placed in the air chamber of certain altitude.The application
In the back side of the first power tube is connected to due to one end of the first heat conducting bar, one end of the second heat conducting bar is connected to the second power tube
The back side so that the first power tube front with the second power tube front towards the same side, which is had
Effect utilizes, requirement when the first power tube and symmetrical the second power tube is effectively reduced to air chamber height.Therefore, it effectively drops
Restriction of the size of low waveguide input port and wave guide outlet to the accommodation space of the first power tube and the second power tube, Jin Erke
To reduce the size of waveguide input port and wave guide outlet, realizes the microwave power synthesis of higher frequency, effectively improve microwave function
The adaptability of rate combining amplifier.At the same time it can also further decrease the thickness of support base, so that the first power tube and the second function
It puts distance between pipe and becomes closer, and then more support bases and the second antenna plate can be increased, to realize higher output power
Requirement.
First power tube is fixed on the end face of first heat conducting bar one end in one of the embodiments, institute
The second power tube is stated to be fixed on the end face of second heat conducting bar one end.
The radiating seat is towards offering the first mounting groove on the surface of the support base in one of the embodiments,
First heat conducting bar and second heat conducting bar are all set on the bottom wall of first mounting groove, and the support base is towards institute
It states and offers the first accommodation groove on the surface of radiating seat, first accommodation groove is connected with first mounting groove to be formed
State the first accommodating cavity, the first antenna plate is set in first mounting groove, first power tube just facing towards institute
State the setting of the first accommodation groove.
The support base is towards offering the second mounting groove, institute on the surface of the cover board in one of the embodiments,
Cover board is stated towards offering the second accommodation groove, second accommodation groove and the second mounting groove phase on the surface of the support base
Connection is to form second accommodating cavity, and second antenna plate is set in second mounting groove, second power tube
Just facing towards second accommodation groove be arranged.
Metal partion (metp), the metal partion (metp) are provided on the bottom wall of second accommodation groove in one of the embodiments,
Corresponding between first power tube and second power tube.
The first groove, first groove are offered on the bottom wall of first mounting groove in one of the embodiments,
Through the one side wall of the radiating seat, the first through slot is offered on the bottom wall of first accommodation groove, first through slot runs through
The one side wall of the support base, the cover board is towards offering the second groove, second groove on the surface of the support base
Through the cover board one side wall and be connected with second accommodation groove, first groove and first through slot and described
Second groove is connected to form the waveguide input port；Third groove, institute are also provided on the bottom wall of first mounting groove
The third groove another side wall opposite through the radiating seat is stated, it is logical to be also provided with second on the bottom wall of first accommodation groove
Slot, second through slot through the opposite another side wall of the support base, the cover board towards on the surface of the support base also
The 4th groove is offered, the 4th groove is connected through the opposite another side wall of the cover board and with second accommodation groove
Logical, the third groove is connected with second through slot and the 4th groove to form the wave guide outlet.
The quantity of second antenna plate is at least two in one of the embodiments, each second antenna plate
On be provided with second power tube, the quantity of the support base is corresponding with the quantity of second antenna plate, per adjacent
Two support bases are stacked on top of each other, and surround a third accommodating cavity jointly, are provided with an institute in each third accommodating cavity
State the second antenna plate.
The quantity of second heat conducting bar is corresponding with the quantity of second antenna plate in one of the embodiments,
Wherein one end of second heat conducting bar sequentially passes through the first antenna plate, near the branch of the first antenna plate
Support seat simultaneously protrudes into second through-hole of the first antenna plate, to be connected near the first antenna plate
The back side of second power tube in second antenna plate；For second antenna far from the first antenna plate
Plate, one end of another second heat conducting bar sequentially pass through described first between second antenna plate and the radiating seat
Antenna plate, the support base and second antenna plate, and protrude into second through-hole in second antenna plate, with
It is connected to the back side of second power tube in second antenna plate.
The first antenna plate and second antenna plate are active antenna plate in one of the embodiments, described
Active antenna plate includes input two-way fin line-microstrip transitions, time delay microstrip transmission line, output micro-strip-fin line conversion.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the microwave power combining amplifier in an embodiment；
Fig. 2 is the decomposition diagram of microwave power combining amplifier shown in FIG. 1；
Fig. 3 is the structural schematic diagram at another visual angle of support base in Fig. 2；
Fig. 4 is the structural schematic diagram at another visual angle of Fig. 2 cover plate.
Specific embodiment
To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, with reference to the accompanying drawing to this
The specific embodiment of utility model is described in detail.Many details are explained in the following description in order to abundant
Understand the utility model.But the utility model can be implemented with being much different from other way described herein, this field
Technical staff can do similar improvement without prejudice to the utility model connotation, therefore the utility model is not by following public affairs
The limitation for the specific implementation opened.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement for illustrative purposes only, are not meant to be the only embodiment.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Each technical characteristic of embodiment described above
It can be combined arbitrarily, for simplicity of description, not to all possible combination of each technical characteristic in above-described embodiment
It is all described, as long as being all considered to be the model of this specification record however, there is no contradiction in the combination of these technical features
It encloses.
Fig. 1 and Fig. 2 is please referred to, the microwave power combining amplifier 10 in an embodiment is applied to wireless communication, radar
Equal fields, can not only realize the ipsilateral heat dissipation of power tube, be conducive to the integrated of system, while microwave power combining amplifier 10
It can also be applied on higher microwave frequency band, effectively improve the applicability of microwave power combining amplifier 10.Specific to this reality
It applies in mode, the power combing that microwave power combining amplifier 10 is suitable for microwave and millimeter wave amplifies.Specifically, microwave power closes
It include radiating seat 100, support base 200, first antenna plate 300, cover board 400 and the second antenna plate 500 at amplifier 10.Specific to
Present embodiment, the second antenna plate 500 are one.
The side of microwave power combining amplifier 10 offers waveguide input port 610, and the opposite other side offers waveguide
Delivery outlet.Electromagnetic wave can be entered in microwave power combining amplifier 10 by waveguide input port 610, after carrying out power amplification,
It is synthesized by wave guide outlet and exports the amplified electromagnetic wave of synthesis.
Radiating seat 100 be provided with the first heat conducting bar 110 and with the second heat conducting bar for stating the first heat conducting bar 110 and being set side by side
120.Support base 200 is set to the side of radiating seat 100, and support base 200 and radiating seat 100 surround one first accommodating cavity jointly,
First heat conducting bar 110 and the second heat conducting bar 120 are respectively positioned on radiating seat 100 towards the side of support base 200 and are located at the first accommodating
It is intracavitary.First accommodating cavity is connected with waveguide input port 610 and wave guide outlet.First antenna plate 300 is set to the first appearance
It sets intracavitary, the first power tube is provided on first antenna plate 300, offer first through hole 310 on first antenna plate 300, first
Power tube corresponds to first through hole 310, and the first heat conducting bar 110 protrudes into first through hole 310 far from one end of radiating seat 100, and
It is connected to the back side of the first power tube.Wherein, the first power tube has front and the back side with the opposite facing setting in front.The
The heat that one power tube generates can be transmitted on radiating seat 100 by the first heat conducting bar 110 to radiate, and effectively avoids the first function
It puts pipe overheat and damages.
Specific in present embodiment, the first power tube is two, and first through hole 310 is two, and two first through hole are simultaneously
Column setting, every one first power tube correspond to a first through hole 310.Certainly, in other embodiments, the first power tube may be used also
Think one, first through hole 310 is one.
Specific in present embodiment, the first power tube is located in first through hole 310.Certainly, in other embodiments,
First power tube is located on first antenna plate 300 and is completely covered or part covering first through hole 310, as long as enabling to the
One heat conducting bar 110 is connected to the back side of the first power tube.
Cover board 400 is covered on support base 200 back on the side of radiating seat 100, and cover board 400 encloses jointly with support base 200
At one second accommodating cavity, the second accommodating cavity is connected with waveguide input port 610 and wave guide outlet.Second antenna plate 500 is set
It is placed in the second accommodating cavity, the second power tube is provided in the second antenna plate 500, it is logical that second is offered in the second antenna plate 500
Hole 510, the second power tube correspond to the second through-hole 510.Second heat conducting bar 120 sequentially passes through far from one end of radiating seat 100
One antenna plate 300, support base 200 simultaneously protrude into the second through-hole 510, to be connected to the back side of the second power tube.Wherein, the second function
Putting pipe has front and the back side with the opposite facing setting in front.The heat that second power tube generates can be by the second heat conducting bar
120 are transmitted on radiating seat 100 and radiate, and it is scattered to realize that the first power tube and the second power tube are carried out by radiating seat 100 simultaneously
Heat, and then the quantity of radiating piece can be reduced, be conducive to the integrated of system, while making the body of microwave power combining amplifier 10
Product is smaller with weight.
In engineering, it the first power tube and the second power tube and is required to be placed in the air chamber of certain altitude.This Shen
Please in the back side of the first power tube is connected to due to one end of the first heat conducting bar 110, one end of the second heat conducting bar 120 is connected to
The back side of second power tube, so that positive and the second power tube of the first power tube is positive towards the same side, it can be abundant
Requirement using the side space, when the first power tube and symmetrical the second power tube is effectively reduced to air chamber height.Therefore,
The accommodation space of first power tube and the second power tube is not by the system of waveguide input port 610 and the long side height of wave guide outlet
About, it and then can reduce the size of waveguide input port 610 Yu wave guide outlet, realize the microwave power synthesis of higher frequency, have
Effect improves the adaptability of microwave power combining amplifier 10.
At the same time it can also further reduce the thickness of support base 200, so that between the first power tube and the second power tube
Distance becomes closer, so that the figure of microwave power combining amplifier 10 is smaller, is more advantageous to the integrated of system.Alternatively, may be used also
To increase more support bases 200 and the second antenna plate 500 in turn, to realize the requirement of higher output power.
Specific in present embodiment, the second power tube is two, and the second power tube corresponds to the second through-hole 510 side by side.
Certainly, in other embodiments, the second power tube can also be one.
Specific in present embodiment, the second power tube is located in the second through-hole 510.Certainly, in other embodiments,
Second power tube is located in the second antenna plate 500 and is completely covered or the second through-hole 510 of part covering, as long as enabling to the
Two heat conducting bars 120 are connected to the back side of the second power tube.
Specifically, it is also provided with third through-hole 320 on first antenna plate 300, offers fourth hole on support base 200
210, fourth hole 210 is connected with third through-hole 320 and the second through-hole 510.One end of second heat conducting bar 120 sequentially passes through
Third through-hole 320, fourth hole 210 simultaneously protrude into the second through-hole 510, more convenient to be connected to the back side of the second power tube
The contact of second heat conducting bar 120 and the second power tube, so that the heat that the second power tube generates more effectively is transmitted to radiating seat 100
On.
First heat conducting bar 110 and the second heat conducting bar 120 are arranged at interval side by side, so that the first power tube and the second power tube exist
Projection on radiating seat 100 is not overlapped, and effectively improves the radiating efficiency of the first power tube and the second power tube.Meanwhile in space
On, the first power tube is located at different height from the second power tube, further effectively avoids the first power tube and the second power tube
Intercouple interference.Specific in present embodiment, the first heat conducting bar 110 can be two, to realize two the first power tubes
Heat dissipation respectively.Specifically, the first heat conducting bar 110 is two, two the first interval settings side by side of heat conducting bar 110.
Specific in present embodiment, the first heat conducting bar 110 is made of copper with the second heat conducting bar 120.Certainly, in other realities
It applies in mode, the first heat conducting bar 110 can also be made with the second heat conducting bar 120 of the preferable material of other heat-conducting effects.
First power tube is fixed on the end face of 110 one end of the first heat conducting bar, and the second power tube is fixed on the second heat conducting bar
On the end face of 120 one end, the first power tube and the second power tube are further effectively fixed, while making the first power tube and first
Heat conducting bar 110 more efficiently contacts, and the second power tube is more efficiently contacted with the second heat conducting bar 120, further mentions
The radiating efficiency of high first power tube and the second power tube.Specific in present embodiment, the first power tube is welded in first and leads
On the end face of 110 one end of hot rod, the second power tube is welded on the end face of 120 one end of the second heat conducting bar.
Specific in present embodiment, radiating seat 100 is made of copper, copper have good heat dissipation effect, can effectively by
Heat on first power tube and the second power tube distributes.Certainly, in other embodiments, radiating seat 100 can be with
It is made of the preferable material of other heat dissipation effects.
Specifically, it is provided with multiple spaced cooling fins on radiating seat 100, can be further increased by cooling fin
The radiating efficiency of radiating seat 100.
Also referring to Fig. 3, radiating seat 100 is towards offering the first mounting groove 130 on the surface of support base 200, and first
Heat conducting bar 110 and the second heat conducting bar 120 are all set on the bottom wall of the first mounting groove 130.Support base 200 is towards radiating seat 100
Surface on offer the first accommodation groove 220, the first accommodation groove 220 is connected to form the first accommodating with the first mounting groove 130
Chamber.First antenna plate 300 is set in the first mounting groove 130, and the first power tube is just arranged facing towards the first accommodation groove 220.
Since the first power tube has peripheral circuit, certain altitude is arranged in the first power tube and its peripheral circuit needs
In air chamber, absorbing material is provided in air chamber.By the first mounting groove 130 first antenna plate 300 is arranged in
On radiating seat 100, the air chamber that the first power tube and its peripheral circuit need is capable of forming by the first accommodation groove 220.
Specifically, first antenna plate 300 is fixed in the first mounting groove 130, so that first antenna plate 300 is formed well
Ground connection and reliable electromagnetic structure.Specific in present embodiment, first antenna plate 300 is welded in the first mounting groove 130.
Certainly, in other embodiments, first antenna plate 300 can also be fixed on the first mounting groove 130 by screw or glue etc.
It is interior.
Further, the size of the first mounting groove 130 and the size of first antenna plate 300 match, and further avoid
One antenna plate 300 is relative to 100 activity of radiating seat.
Referring to Figure 4 together, support base 200 is towards offering the second mounting groove 230, cover board 400 on the surface of cover board 400
Offer the second accommodation groove 410 on towards the surface of support base 200, the second accommodation groove 410 be connected with the second mounting groove 230 with
Form the second accommodating cavity.Second antenna plate 500 is set in the second mounting groove 230, and the second power tube just holds facing towards second
Set the setting of slot 410.
Since the second power tube has peripheral circuit, certain altitude is arranged in the second power tube and its peripheral circuit needs
In air chamber, absorbing material is provided in air chamber.By the second mounting groove 230 second antenna plate 500 is arranged in
On support base 200, the air chamber that the second power tube and its peripheral circuit need is capable of forming by the second accommodation groove 410.
Specifically, the second antenna plate 500 is fixed in the second mounting groove 230, so that the second antenna plate 500 is formed well
Ground connection and reliable electromagnetic structure.Specific in present embodiment, the second antenna plate 500 is welded in the second mounting groove 230.
Certainly, in other embodiments, the second antenna plate 500 can also be fixed on the second mounting groove 230 by screw or glue etc.
It is interior.
Further, the size of the second mounting groove 230 and the size of the second antenna plate 500 match, and further avoid
Two antenna plates 500 are relative to 200 activity of support base.
Metal partion (metp) (not shown) is provided on the bottom wall of second accommodation groove 410, metal partion (metp) corresponds to the first power tube
Between the second power tube.Further the first power tube and the second power tube are kept apart by metal partion (metp), further avoided
First power tube and the second power tube intercouple interference.
Referring to Fig. 1 and Fig. 2, the first groove 140, the first groove 140 are offered on the bottom wall of the first mounting groove 130
Through the one side wall of radiating seat 100, the first through slot 240 is offered on the bottom wall of the first accommodation groove 220, the first through slot 240 runs through
The one side wall of support base 200, towards the second groove 420 is offered on the surface of support base 200, the second groove 420 passes through cover board 400
It wears the one side wall of cover board 400 and is connected with the second accommodation groove 410, the first groove 140 and the first through slot 240 and the second groove
420 are connected to form waveguide input port 610.
Third groove 150 is also provided on the bottom wall of first mounting groove 130, third groove 150 runs through 100 phase of radiating seat
Pair another side wall, the second through slot 250 is also provided on the bottom wall of the first accommodation groove 220, the second through slot 250 runs through support base
200 opposite another side walls, cover board 400 is towards being also provided with the 4th groove 430, the 4th groove 430 on the surface of support base 200
It is connected through the opposite another side wall of cover board 400 and with the second accommodation groove 410, third groove 150 and the second through slot 250 and
Four grooves 430 are connected to form wave guide outlet.
First antenna plate 300 and the second antenna plate 500 are active antenna plate, and active antenna plate includes input two-way fin
Line-microstrip transitions, time delay microstrip transmission line, output micro-strip-fin line conversion.Time delay microstrip transmission line is used to be aligned first antenna plate
300 and the second phase between antenna plate 500.Specifically, the equal direction in the front in the front of the first power tube and the second power tube
The same side.
Since the front of the first power tube and the front of the second power tube are towards the same side so that the first power tube and its
The interference that intercouples of peripheral circuit and the second power tube and its peripheral circuit is smaller.Therefore, support base can be further decreased
200 thickness, so that the depth of the first through slot 240 and the second through slot 250 is smaller, so that waveguide input port 610 and waveguide
Delivery outlet it is smaller, be suitable for higher microwave frequency band.
Meanwhile when the size constancy of waveguide input port 610 and wave guide outlet, since support base can be further decreased
200 thickness, and then more second antenna plates 500 can be increased and be used to support the support base 200 of the second antenna plate 500,
The output power of microwave power combining amplifier 10 is further increased, so that microwave power combining amplifier 10 is applicable to more
On the product or equipment of high-power output.
Certainly, in another embodiment, the quantity of the second antenna plate 500 can also be at least two, support base 200
Quantity is corresponding with the quantity of the second antenna plate 500, and each adjacent two support base 200 is stacked on top of each other, and surrounds a third jointly
Accommodating cavity is provided with one second antenna plate 500 in each third accommodating cavity.It can be further by increasing by the second antenna plate 500
Increase the output power of microwave power combining amplifier 10.
Specifically, the quantity of the second heat conducting bar 120 is corresponding with the quantity of the second antenna plate 500, wherein one second is thermally conductive
One end of bar 120 sequentially pass through first antenna plate 300, near first antenna plate 300 support base 200 and protrude near
In second through-hole 510 of one antenna plate 300, be connected in the second antenna plate 500 of first antenna plate 300 second
The back side of power tube.For the second antenna plate 500 far from first antenna plate 300, one end of another second heat conducting bar 120 according to
The secondary first antenna plate 300 across second antenna plate 500 and radiating seat 100, support base 200 and the second antenna plate 500,
And protrude into the second through-hole 510 in second antenna plate 500, with the second power tube being connected in second antenna plate 500
The back side.
Make the heat in the second antenna plate 500 that can be oriented to radiating seat 100 by the second heat conducting bar 120, by scattered
Hot seat 100 distributes heat, allows the volume of microwave power combining amplifier 10 smaller with weight, is conducive to system
It is integrated.
For example, the quantity of the second antenna plate 500 is two, the quantity of support base 200 and the second heat conducting bar 120 is with second
The quantity of antenna plate 500 is corresponding, is two.Two support bases 200 are stacked on top of each other, wherein one second antenna plate 500 is located at
Between two support bases 200, another second antenna plate 500 is between support base 200 and cover board 400.
Wherein one end of one second heat conducting bar 120 sequentially passes through first antenna plate 300, the branch close to first antenna plate 300
Support seat 200 simultaneously protrudes into the second through-hole 510 of first antenna plate 300, to be connected to second close to first antenna plate 300
The back side of the second power tube in antenna plate 500.One end of another second heat conducting bar 120 sequentially pass through first antenna plate 300,
Second antenna plate 500 of two support bases 200 and close first antenna plate 300, and protrude into the second of separate first antenna plate 300
In the second through-hole 510 in antenna plate 500, to be connected to the back side of the second power tube far from first antenna plate 300.By setting
Two the second antenna plates 500 are set, so that the quantity of the second power tube increases, so that microwave power combining amplifier 10 is defeated
It is more powerful out.
Above-mentioned microwave power combining amplifier 10 has at least the following advantages:
When installation, first antenna plate 300 is set in the first mounting groove 130, make the first power tube just facing towards
The setting of one accommodation groove 220, the first heat conducting bar 110 protrude into the first through hole on first antenna plate 300 far from one end of radiating seat 100
In 310, the back side of the first power tube is fixed on the end face of 110 one end of the first heat conducting bar.Therefore, the heat that the first power tube generates
Amount can be transmitted on radiating seat 100 by the first heat conducting bar 110 to radiate.Second antenna plate 500 is set to the second installation
In slot 230, make just being arranged facing towards the second accommodation groove 410 for the second power tube, the separate one end of the second heat conducting bar 120 is successively worn
It crosses third through-hole 320, fourth hole 210 and protrudes into the second through-hole 510, the second heat conducting bar is fixed at the back side of the second power tube
On the end face of 120 one end.Therefore, the heat that the second power tube generates can be transmitted to radiating seat 100 by the second heat conducting bar 120
On radiate, realize that the first power tube and the second power tube are radiated by radiating seat 100 simultaneously, and then realize first day
Line plate 300 is radiated with the second antenna plate 500 by the same side, it is possible to reduce the setting of radiating piece quantity, so that microwave power
The volume of combining amplifier 10 can be smaller with weight, is conducive to the integrated of electronic system.
Due to being just arranged facing towards support base 200 for the first power tube, the second power tube is just set facing towards cover board 400
It sets, so that the first power tube is positive and the second power tube just facing towards the same side, so that the side space can make full use of,
To form air chamber required for the first power tube and its peripheral circuit and the second power tube and its peripheral circuit, it is reduced to waveguide
Input port 610 and restriction of the wave guide outlet size to air chamber, and then waveguide input port 610 and wave guide outlet can be reduced
Size, be suitable for higher microwave frequency band, effectively improve the adaptability of microwave power combining amplifier 10.
Meanwhile when the size constancy of waveguide input port 610 and wave guide outlet, since support base can be further decreased
200 thickness, and then more second antenna plates 500 can be increased and be used to support the support base 200 of the second antenna plate 500,
The output power of microwave power combining amplifier 10 is further increased, so that microwave power combining amplifier 10 is applicable to more
On the product or equipment of high-power output.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (10)
1. a kind of microwave power combining amplifier, which is characterized in that the side of the microwave power combining amplifier offers wave
Input port is led, the opposite other side offers wave guide outlet, and the microwave power combining amplifier includes:
Radiating seat, the second heat conducting bar for being provided with the first heat conducting bar and being set side by side with first heat conducting bar；
Support base is set to the side of the radiating seat, and the support base and the radiating seat surround one first accommodating cavity jointly,
First heat conducting bar and second heat conducting bar are respectively positioned on radiating seat towards the side of the support base and are located at described first
In accommodating cavity, first accommodating cavity is connected with the waveguide input port and the wave guide outlet；
First antenna plate is set in first accommodating cavity, is provided with the first power tube on the first antenna plate, and described
First through hole is offered in one antenna plate, first power tube corresponds to the first through hole, and first power tube has
Front and the back side with the opposite facing setting in front, first heat conducting bar protrude into described the far from one end of the radiating seat
In one through-hole, and it is connected to the back side of first power tube；
Cover board is covered on the support base back on the side of the radiating seat, and the cover board surrounds jointly with the support base
One second accommodating cavity, second accommodating cavity are connected with the waveguide input port and the wave guide outlet；And
Second antenna plate is set in second accommodating cavity, is provided with the second power tube in second antenna plate, and described
The second through-hole is offered in two antenna plates, second power tube corresponds to second through-hole, and second power tube has
Front and the back side with the opposite facing setting in front, second heat conducting bar sequentially pass through institute far from one end of the radiating seat
It states first antenna plate, the support base and protrudes into second through-hole, to be connected to the back side of second power tube.
2. microwave power combining amplifier according to claim 1, which is characterized in that first heat conducting bar and described the
Two heat conducting bar intervals setting, so that first power tube is not weighed with projection of second power tube on the radiating seat
It closes.
3. microwave power combining amplifier according to claim 1, which is characterized in that first power tube is fixed on institute
On the end face for stating first heat conducting bar one end, second power tube is fixed on the end face of second heat conducting bar one end.
4. microwave power combining amplifier according to claim 1, which is characterized in that the radiating seat is towards the support
The first mounting groove is offered on the surface of seat, first heat conducting bar and second heat conducting bar are all set in first installation
On the bottom wall of slot, the support base towards offering the first accommodation groove on the surface of the radiating seat, first accommodation groove with
First mounting groove is connected to form first accommodating cavity, and the first antenna plate is set to first mounting groove
Interior, first power tube is just arranged facing towards first accommodation groove.
5. microwave power combining amplifier according to claim 4, which is characterized in that the support base is towards the cover board
Surface on offer the second mounting groove, the cover board is described towards offering the second accommodation groove on the surface of the support base
Second accommodation groove is connected to form second accommodating cavity with second mounting groove, and second antenna plate is set to described
In second mounting groove, second power tube is just arranged facing towards second accommodation groove.
6. microwave power combining amplifier according to claim 5, which is characterized in that on the bottom wall of second accommodation groove
It is provided with metal partion (metp), the metal partion (metp) corresponds between first power tube and second power tube.
7. microwave power combining amplifier according to claim 5, which is characterized in that on the bottom wall of first mounting groove
The first groove is offered, first groove runs through the one side wall of the radiating seat, opens up on the bottom wall of first accommodation groove
There is the first through slot, first through slot runs through the one side wall of the support base, and the cover board is towards on the surface of the support base
The second groove is offered, second groove runs through the one side wall of the cover board and is connected with second accommodation groove, described
First groove is connected to form the waveguide input port with first through slot and second groove；First mounting groove
Bottom wall on be also provided with third groove, the third groove another side wall opposite through the radiating seat, described first holds
It sets and is also provided with the second through slot on the bottom wall of slot, the second through slot another side wall opposite through the support base, the lid
Plate is towards being also provided with the 4th groove, the 4th groove other side opposite through the cover board on the surface of the support base
Wall is simultaneously connected with second accommodation groove, and the third groove is connected with second through slot and the 4th groove with shape
At the wave guide outlet.
8. microwave power combining amplifier according to claim 1-7, which is characterized in that second antenna plate
Quantity be at least two, be provided with second power tube, the quantity of the support base in each second antenna plate
Corresponding with the quantity of second antenna plate, support base described in each adjacent two is stacked on top of each other, and surrounds third appearance jointly
Chamber is set, second antenna plate is provided in each third accommodating cavity.
9. microwave power combining amplifier according to claim 8, which is characterized in that the quantity of second heat conducting bar with
The quantity of second antenna plate is corresponding, wherein one end of second heat conducting bar sequentially pass through the first antenna plate,
Near the first antenna plate the support base and protrude into second through-hole of the first antenna plate, with
It is connected to the back side of second power tube in second antenna plate of the first antenna plate；For far from institute
Second antenna plate of first antenna plate is stated, one end of another second heat conducting bar sequentially passes through second antenna plate
The first antenna plate, the support base and second antenna plate between the radiating seat, and protrude into this described second
In second through-hole in antenna plate, with the back side for second power tube being connected in second antenna plate.
10. microwave power combining amplifier according to claim 1-7, which is characterized in that the first antenna
Plate and second antenna plate are active antenna plate, and the active antenna plate includes input two-way fin line-microstrip transitions, time delay
Microstrip transmission line, output micro-strip-fin line conversion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820764696.9U CN208353296U (en) | 2018-05-22 | 2018-05-22 | microwave power combining amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820764696.9U CN208353296U (en) | 2018-05-22 | 2018-05-22 | microwave power combining amplifier |
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| Publication Number | Publication Date |
|---|---|
| CN208353296U true CN208353296U (en) | 2019-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108696254A (en) * | 2018-05-22 | 2018-10-23 | 广州联星科技有限公司 | microwave power combining amplifier |
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2018
- 2018-05-22 CN CN201820764696.9U patent/CN208353296U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108696254A (en) * | 2018-05-22 | 2018-10-23 | 广州联星科技有限公司 | microwave power combining amplifier |
| CN108696254B (en) * | 2018-05-22 | 2023-12-26 | 广州联星科技有限公司 | Microwave power synthesis amplifier |
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