CN113064120A - On-chip local oscillator power distribution network and radar transmitting and receiving system - Google Patents
On-chip local oscillator power distribution network and radar transmitting and receiving system Download PDFInfo
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- CN113064120A CN113064120A CN202110176265.7A CN202110176265A CN113064120A CN 113064120 A CN113064120 A CN 113064120A CN 202110176265 A CN202110176265 A CN 202110176265A CN 113064120 A CN113064120 A CN 113064120A
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- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 4
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- 230000009286 beneficial effect Effects 0.000 description 2
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
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Abstract
The invention provides an on-chip local oscillation power division network and a radar transceiving system, and relates to the field of chip integration. The on-chip local oscillator power distribution network is integrated in a chip structure, and the occupied area is small. The on-chip or off-chip local oscillation signal source can be switched to serve as local oscillation signals of the transmitter and the receiver, and meanwhile, the local oscillation signals can be sent to the outside of the chip for signal detection or other complex systems can be constructed, so that the functions are met, the design complexity is simplified, the cost is reduced, and the distribution efficiency is improved.
Description
Technical Field
The invention relates to the technical field of chip integration, in particular to an on-chip vibration power splitting network and a radar transceiving system.
Background
With the development of semiconductor process technology, people put higher and higher requirements on the size of integrated circuit systems.
For a radar transceiver system, a conventional local oscillator power distribution network and an integrated circuit chip are generally separated from each other, which may result in a larger volume of the whole system.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides an on-chip vibration power division network and a radar transceiving system, and solves the technical problem that the existing radar transceiving system is large in size.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme:
the invention provides an on-chip local oscillation power distribution network, which is integrated in a chip structure and comprises the following components:
the power divider is used for dividing the power into a plurality of power components,
the input ends are connected to the power divider through a single-pole double-throw switch and used for inputting an on-chip or off-chip local oscillation signal source;
and the output end comprises an on-chip output end, the on-chip output end is connected with the power divider and is used for outputting an on-chip local oscillation signal, and the on-chip local oscillation signal is used as a local oscillation signal of the chip.
Preferably, the power divider is a one-to-four power divider.
Preferably, the output end further includes an off-chip output end, the off-chip output end is connected to the power divider, and the off-chip output end is configured to send the local oscillation signal to the outside of the chip.
Preferably, the on-chip local oscillator power divider network further includes a microstrip line, and the microstrip line is used to connect the input end and the output end to the power divider.
The present invention also provides a radar transmitting/receiving system, including: a transmitter, a receiver, a frequency source, an off-chip local oscillation input port, an off-chip local oscillation output port and an on-chip local oscillation power division network,
the on-chip local oscillation power distribution network is connected with the transmitter and the receiver;
the system comprises an off-chip local oscillation input port and an off-chip local oscillation output port, wherein the off-chip local oscillation input port is connected to an on-chip local oscillation power distribution network;
the transmitter, the receiver, the frequency source, the off-chip local oscillation input port, the off-chip local oscillation output port and the on-chip local oscillation power distribution network are integrated in the same chip structure.
Preferably, the power divider is a one-to-four power divider.
Preferably, the on-chip local oscillator power divider network further includes a microstrip line, and the microstrip line is used to connect the input end and the output end to the power divider.
The invention also provides a radar which comprises the radar transceiving system.
(III) advantageous effects
The invention provides an on-chip local oscillation power division network and a radar transceiving system. Compared with the prior art, the method has the following beneficial effects:
the invention provides an on-chip local oscillation power distribution network and a radar receiving and transmitting system.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic plane structure diagram of an on-chip local oscillator power distribution network according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an on-chip local oscillator power distribution network according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a radar transmitting and receiving system according to an embodiment of the present invention;
fig. 4 is a graph of return loss of the on-chip local oscillation power distribution network according to the embodiment of the present invention;
fig. 5 is a graph of insertion loss of the on-chip local oscillator power distribution network according to the embodiment of the present invention.
The circuit comprises a first input end 110, a second input end 120, a first microstrip line 130, a second microstrip line 140, a single-pole double-throw switch 150, a one-to-four power divider 160, a third microstrip line 170, a fourth microstrip line 180, a fifth microstrip line 190, a first output end 200, a second output end 210, an external output end 220, a load end 230, an external local oscillator input port 310, a frequency source 320, a receiver 330, a transmitter 340 and an external local oscillator output port 350.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the application provides the on-chip local oscillation power division network and the radar transceiving system, solves the technical problem that the existing radar transceiving system is large in size, and reduces the size of the radar transceiving system.
In order to solve the technical problems, the general idea of the embodiment of the application is as follows:
for a radar receiving and transmitting system, a traditional local oscillator power distribution network and an integrated circuit chip are generally separated from each other, so that the occupied area of the whole system is large, and the volume and the cost of the system are improved. In the embodiment of the invention, the on-chip local oscillation power distribution network and the radar transceiving system are provided, the on-chip local oscillation power distribution network is integrated in a chip structure, the occupied area of the on-chip local oscillation power distribution network is small, an on-chip or off-chip local oscillation signal source can be switched to be used as local oscillation signals of a transmitter and a receiver, and meanwhile, the local oscillation signals can be sent to an off-chip system for signal detection or other complex systems.
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
The embodiment of the invention provides an on-chip local oscillation power distribution network, which is integrated in a chip structure and comprises the following steps: the power divider, two input ends and an output end.
The input end is connected to the power divider through a single-pole double-throw switch and used for inputting an on-chip or off-chip local oscillation signal source.
The output end comprises an on-chip output end, the on-chip output end is connected with the power divider and used for outputting an on-chip local oscillation signal, and the on-chip local oscillation signal is used as a local oscillation signal of the chip.
The invention provides an on-chip local oscillation power distribution network which is integrated in a chip structure and occupies a small area.
As shown in fig. 1 and fig. 2, the on-chip local oscillation power dividing network includes an input terminal, a power divider, an output terminal, and a single-pole double-throw switch 150, and in the embodiment of the present invention, a one-to-four power divider 160 is taken as an example.
The input end includes a first input end 110 and a second input end 120, the first input end 110 and the second input end 120 are respectively connected to a single-pole double-throw switch 150 through a first microstrip line 130 and a second microstrip line 140, and the single-pole double-throw switch 150 is connected to the input end of a divide-by-four power divider 160.
The output terminals include an on-chip output terminal including the first output terminal 200 and the second output terminal 210, an off-chip output terminal 220, and a load terminal 230. The first output end 200, the second output end 210, and the off-chip output end 220 are respectively connected to three output ports of the one-to-four power divider 160 through a third microstrip line 170, a fourth microstrip line 180, and a fifth microstrip line 190, and the load end 230 is connected to one of the output ports of the one-to-four power divider 160.
As shown in fig. 3, an embodiment of the present invention further provides a radar transceiver system, where the system includes a transmitter 340, a receiver 330, a frequency source 320, an off-chip local oscillator input port 310, an off-chip local oscillator output port 350, and an on-chip local oscillator power division network, which are integrated in the same chip structure. The transmitter and the receiver 330 are connected to two on-chip output terminals of the on-chip local oscillation power distribution network, the frequency source 320 and the off-chip local oscillation input port 310 are connected to an input terminal of the on-chip local oscillation power distribution network, and the off-chip local oscillation output port 350 is connected to the off-chip output terminal 220 of the on-chip local oscillation power distribution network.
Fig. 4 shows return loss of two input ends and three output ends of the on-chip local oscillator power distribution network according to the embodiment of the present invention, and it can be seen that the return loss of these ports is less than-10 dB in a millimeter wave high bandwidth range of 30G to 50GHz, that is, millimeter wave broadband matching is achieved.
Fig. 5 shows the loss of the output signals of the three output terminals of the on-chip local oscillator power dividing network according to the embodiment of the present invention, and this loss value is acceptable when the system is applied, and because the local oscillator power dividing network adopts a fully passive structure, there is no power consumption, and the insertion loss fluctuation in the frequency band of 30G to 50GHz is less than 0.5dB, which is convenient for broadband application.
The embodiment of the invention also provides a radar which comprises the radar transceiving system.
In summary, compared with the prior art, the method has the following beneficial effects:
1. the embodiment of the invention provides an on-chip local oscillation power division network and a radar receiving and transmitting system. The on-chip or off-chip local oscillation signal source can be switched to serve as local oscillation signals of the transmitter and the receiver, and meanwhile, the local oscillation signals can be sent to the outside of the chip for signal detection or other complex systems can be constructed, so that the functions are met, the design complexity is simplified, the cost is reduced, and the distribution efficiency is improved.
2. The embodiment of the invention adopts a fully passive structure to realize millimeter wave frequency band power distribution, has low power consumption and better isolation between different output ends.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. The utility model provides an on-chip local oscillation power divides network which characterized in that, on-chip local oscillation power divides network integration in chip architecture, includes:
the power divider is used for dividing the power into a plurality of power components,
the input ends are connected to the power divider through a single-pole double-throw switch and used for inputting an on-chip or off-chip local oscillation signal source;
and the output end comprises an on-chip output end, the on-chip output end is connected with the power divider and is used for outputting an on-chip local oscillation signal, and the on-chip local oscillation signal is used as a local oscillation signal of the chip.
2. The on-chip local oscillator power division network of claim 1, wherein the power divider is a one-to-four power divider.
3. The on-chip local oscillator power distribution network of claim 1, wherein the output further comprises an off-chip output, the off-chip output being connected to the power divider, the off-chip output being configured to send the local oscillator signal off-chip.
4. The on-chip local oscillator power distribution network according to any one of claims 1 to 3, wherein the on-chip local oscillator power distribution network further comprises a microstrip line, and the microstrip line is used for connecting the input end and the output end to the power divider.
5. A radar transceiving system, comprising: a transmitter, a receiver, a frequency source, an off-chip local oscillation input port, an off-chip local oscillation output port and an on-chip local oscillation power division network,
the on-chip local oscillation power distribution network is connected with the transmitter and the receiver;
the system comprises an off-chip local oscillation input port and an off-chip local oscillation output port, wherein the off-chip local oscillation input port is connected to an on-chip local oscillation power distribution network;
the transmitter, the receiver, the frequency source, the off-chip local oscillation input port, the off-chip local oscillation output port and the on-chip local oscillation power distribution network are integrated in the same chip structure.
6. The radar transceiving system of claim 5, wherein the power divider is a one-to-four power divider.
7. The radar transceiver system as claimed in any one of claims 5 to 6, wherein the on-chip local oscillator power divider network further comprises a microstrip line, and the microstrip line is configured to connect the input terminal and the output terminal to the power divider.
8. A radar comprising a radar transceiver system as claimed in any one of claims 5 to 7.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110176265.7A CN113064120A (en) | 2021-02-06 | 2021-02-06 | On-chip local oscillator power distribution network and radar transmitting and receiving system |
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| CN202110176265.7A CN113064120A (en) | 2021-02-06 | 2021-02-06 | On-chip local oscillator power distribution network and radar transmitting and receiving system |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103220121A (en) * | 2013-05-03 | 2013-07-24 | 北京海泰库博科技有限公司 | Multi-radio system and radio frequency module |
| CN209472632U (en) * | 2019-01-16 | 2019-10-08 | 成都蓉微微波电子科技有限公司 | A kind of broadband I/Q modem |
| CN214845740U (en) * | 2021-02-06 | 2021-11-23 | 中国电子科技集团公司第三十八研究所 | On-chip local oscillator power distribution network, radar transmitting and receiving system and radar |
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- 2021-02-06 CN CN202110176265.7A patent/CN113064120A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103220121A (en) * | 2013-05-03 | 2013-07-24 | 北京海泰库博科技有限公司 | Multi-radio system and radio frequency module |
| CN209472632U (en) * | 2019-01-16 | 2019-10-08 | 成都蓉微微波电子科技有限公司 | A kind of broadband I/Q modem |
| CN214845740U (en) * | 2021-02-06 | 2021-11-23 | 中国电子科技集团公司第三十八研究所 | On-chip local oscillator power distribution network, radar transmitting and receiving system and radar |
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