CN117220619A - Frequency conversion device and method capable of realizing local oscillation suppression - Google Patents
Frequency conversion device and method capable of realizing local oscillation suppression Download PDFInfo
- Publication number
- CN117220619A CN117220619A CN202311053556.2A CN202311053556A CN117220619A CN 117220619 A CN117220619 A CN 117220619A CN 202311053556 A CN202311053556 A CN 202311053556A CN 117220619 A CN117220619 A CN 117220619A
- Authority
- CN
- China
- Prior art keywords
- radio frequency
- signal
- output end
- path
- input end
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000010355 oscillation Effects 0.000 title claims abstract description 91
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000001629 suppression Effects 0.000 title claims description 23
- 238000001514 detection method Methods 0.000 claims abstract description 41
- 238000012544 monitoring process Methods 0.000 claims abstract description 39
- 238000001914 filtration Methods 0.000 claims abstract description 17
- 230000003321 amplification Effects 0.000 claims abstract description 14
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 14
- 230000008878 coupling Effects 0.000 claims abstract description 4
- 238000010168 coupling process Methods 0.000 claims abstract description 4
- 238000005859 coupling reaction Methods 0.000 claims abstract description 4
- 239000000758 substrate Substances 0.000 claims description 9
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 238000003786 synthesis reaction Methods 0.000 claims description 7
- 230000005764 inhibitory process Effects 0.000 abstract description 6
- 230000002194 synthesizing effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 10
- 238000013461 design Methods 0.000 description 6
- 238000004891 communication Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000001787 dendrite Anatomy 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The embodiment of the invention discloses a frequency conversion device and a frequency conversion method capable of realizing local oscillation inhibition. The device comprises a radio frequency output circuit, a first frequency conversion circuit, a second frequency conversion circuit and a first frequency conversion circuit, wherein the radio frequency output circuit is used for dividing a first local oscillator signal into a first local oscillator signal and a second first local oscillator signal which are 180 degrees different in phase, mixing the first local oscillator signal with an intermediate frequency signal, synthesizing the first local oscillator signal with the second first local oscillator signal in power to generate a synthesized signal, mixing the synthesized signal with the second local oscillator signal after first filtering amplification, generating a radio frequency signal after second filtering amplification, and isolating the radio frequency signal to output an isolated radio frequency signal; the monitoring circuit is used for coupling the radio frequency signals and dividing the power to obtain a first path of radio frequency signals and a second path of radio frequency signals, monitoring the first path of radio frequency signals and outputting monitoring signals; the detection circuit is used for detecting the second path of radio frequency signals and outputting detection signals; and the power supply control module is used for supplying power to each circuit, sending control signals and feeding detection signals back to the upper computer.
Description
Technical Field
The invention relates to the technical field of radio frequency microwaves. And more particularly, to a frequency conversion apparatus and method capable of implementing local oscillation suppression.
Background
The frequency conversion module is used as a key part in a radio frequency receiving and transmitting channel and is widely applied to communication systems in various industries. With the continuous development of the communication technology level, the requirement on intermodulation components of the frequency conversion module is further improved.
In the prior art, when the local oscillation signal is adjacent to an intermediate frequency signal, the filter has limited effect on local oscillation signal filtering, and the spurious power of the local oscillation signal which is leaked by a channel and is out of band as the intermediate frequency signal is higher, so that the problems of more spurious signals and larger power after secondary mixing are caused and insufficient suppression are solved.
Disclosure of Invention
The invention aims to provide a frequency conversion device and a method capable of realizing local oscillation suppression, which are used for solving at least one of the problems existing in the prior art.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the first aspect of the present invention provides a frequency conversion device capable of implementing local oscillation suppression, the device comprising
The radio frequency output circuit is used for dividing a first local oscillator signal into a first path of first local oscillator signal and a second path of first local oscillator signal which are 180 degrees different in phase, mixing the first path of first local oscillator signal with an intermediate frequency signal, then carrying out power synthesis on the first path of first local oscillator signal and the second path of first local oscillator signal to generate a synthesized signal, mixing the synthesized signal with the second local oscillator signal after first filtering amplification, then carrying out second filtering amplification to generate a radio frequency signal, isolating the radio frequency signal, and then outputting the isolated radio frequency signal;
the monitoring circuit is used for coupling and dividing the radio frequency signals to obtain a first path of radio frequency signals and a second path of radio frequency signals, monitoring the first path of radio frequency signals and outputting monitoring signals;
the detection circuit is used for detecting the second path of radio frequency signals and outputting detection signals;
and the power supply control module is used for supplying power to the radio frequency output circuit, the monitoring circuit and the detection circuit, sending control signals and feeding the detection signals back to the upper computer.
Optionally, the first input end of the radio frequency output circuit receives the first local oscillation signal, the second input end receives the intermediate frequency signal, the third input end receives the second local oscillation signal, and the first output end outputs the isolated radio frequency signal;
the input end of the monitoring circuit receives the radio frequency signal;
the input end of the detection circuit receives the second path of radio frequency signals;
and the output end of the power supply control is connected with the power supply ends and the power supply control ends of the radio frequency output circuit, the monitoring circuit and the detection circuit.
Optionally, the radio frequency output circuit includes a first amplifier, a 180 ° bridge, a first mixer, a second mixer, a first filter, a load, a phase modulation branch, a power combiner, a second filter, a second amplifier, a third mixer, a third amplifier, a third filter, a digitally controlled attenuator, a fourth amplifier, a coupler, and an isolator; wherein the method comprises the steps of
The input end of the first amplifier receives the first local oscillation signal, and the output end of the first amplifier is connected with the input end of the 180-degree bridge;
a first output end of the 180-degree bridge is connected with a first input end of the first mixer, and a second output end of the 180-degree bridge is connected with a first input end of the second mixer;
the input end of the first filter receives the intermediate frequency signal, and the output end of the first filter is connected with the second input end of the first mixer;
the output end of the load is connected with the second input end of the second mixer;
the output end of the first mixer is connected with the first input end of the power combiner;
the output end of the second mixer is connected with the input end of the phase modulation branch;
the output end of the phase modulation branch is connected with the second input end of the power combiner;
the output end of the power combiner is connected with the input end of the second filter;
the output end of the second filter is connected with the input end of the second amplifier;
the output end of the second amplifier is connected with the first input end of the third mixer;
the input end of the third amplifier receives the second local oscillation signal, and the output end of the third amplifier is connected with the second input end of the third mixer;
the output end of the third mixer is connected with the input end of the third filter;
the output end of the third filter is connected with the input end of the numerical control attenuator;
the output end of the numerical control attenuator is connected with the input end of the fourth amplifier;
the output end of the fourth amplifier is connected with the input end of the coupler;
the first output end of the coupler is connected with the input end of the isolator;
and the output end of the isolator outputs the isolated radio frequency signal.
Optionally, the monitoring circuit includes a power divider and a switch; wherein the method comprises the steps of
The input end of the power divider is connected with the second output end of the coupler;
the first output end of the power divider is connected with the first end of the switch;
the second end of the switch outputs the monitoring signal.
Optionally, the detection circuit comprises a detector, and the second output end of the power divider is connected with the input end of the detector.
Optionally, a first output end of the power supply control module is connected with a power supply end of the first amplifier;
the second output end of the power supply control module is connected with the power supply end of the second amplifier;
the third output end of the power supply control module is connected with the power supply end of the third amplifier;
the fourth output end of the power control module is connected with the power control end of the numerical control attenuator;
and a fifth output end of the power supply control module is connected with the second end of the switch.
Optionally, the phase modulation branch is a microstrip line structure with a set of lengths being adjusted at will, and the phase modulation branch is used for realizing phase modulation by changing the lengths through gold wire bonding.
Optionally, the phase modulation branch comprises a plurality of types of bonding pads for gold wire bonding, wherein the plurality of types of bonding pads comprise a first plurality of first types of bonding pads, a second plurality of second types of bonding pads and a third type of bonding pads; wherein the method comprises the steps of
The first type of bonding pads are rectangular bonding pads, and a first plurality of rectangular bonding pads are arranged on the same straight line in a first direction of the substrate at first intervals;
the third type of bonding pad is a semi-annular bonding pad, and the semi-annular bonding pad is arranged on one side, far away from the same straight line, of the substrate in the second direction;
the second type of bonding pads are square bonding pads, and the second plurality of square bonding pads comprise square bonding pads arranged in the first interval and square bonding pads arranged between one side of the same straight line and the semi-annular bonding pads in an array mode.
Optionally, the device further comprises
A housing;
a power supply and control signal input port provided on a side surface of the housing;
an intermediate frequency signal input port provided on the front face of the housing;
a radio frequency signal output port arranged on the same side of the housing as the power supply and control signal input port;
and the first local oscillation signal input port and the second local oscillation signal input port are arranged on the same front face of the shell and the intermediate frequency signal input port.
The first aspect of the present invention provides a frequency conversion method capable of implementing local oscillation suppression, the method comprising
Dividing a first local oscillator signal into a first path of first local oscillator signal and a second path of first local oscillator signal with 180 DEG phase difference by using a radio frequency output circuit, mixing the first path of first local oscillator signal with an intermediate frequency signal, performing power synthesis with the second path of first local oscillator signal to generate a synthesized signal, mixing the synthesized signal with the second local oscillator signal after first filtering amplification, performing second filtering amplification to generate a radio frequency signal, isolating the radio frequency signal, and outputting the isolated radio frequency signal;
the monitoring circuit is utilized to couple and divide the radio frequency signals to obtain a first path of radio frequency signals and a second path of radio frequency signals, monitor the first path of radio frequency signals and output monitoring signals;
detecting the second path of radio frequency signals by using a detection circuit and outputting detection signals;
and the power supply control module is used for supplying power to the radio frequency output circuit, the monitoring circuit and the detection circuit, sending control signals and feeding the detection signals back to the upper computer.
The beneficial effects of the invention are as follows:
the invention provides a frequency conversion device capable of realizing local oscillation inhibition, which adopts an integrated circuit chip design and optimizes power management, can effectively solve the problem that a local oscillation signal is close to an intermediate frequency band, a filter has poor local oscillation inhibition effect, reduces the power of the local oscillation signal outside the intermediate frequency band, and improves the overall spurious index of the frequency conversion device.
Drawings
The following describes the embodiments of the present invention in further detail with reference to the drawings.
Fig. 1 shows a schematic circuit diagram of a frequency conversion device capable of implementing local oscillation suppression according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a phase modulation branch of a frequency conversion device capable of implementing local oscillation suppression according to an embodiment of the present invention.
Fig. 3 is a side view of a housing structure of a frequency conversion device capable of implementing local oscillation suppression according to an embodiment of the present invention.
Fig. 4 is a front view of a housing structure of a frequency conversion device capable of implementing local oscillation suppression according to an embodiment of the present invention.
Detailed Description
In order to more clearly illustrate the present invention, the present invention will be further described with reference to examples and drawings. Like parts in the drawings are denoted by the same reference numerals. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and that this invention is not limited to the details given herein.
In the prior art, when the local oscillation signal is adjacent to an intermediate frequency signal, the filter has limited effect on local oscillation signal filtering, and the spurious power of the local oscillation signal which is leaked by a channel and is out of band as the intermediate frequency signal is higher, so that the problems of more spurious signals and larger power after secondary mixing are caused and insufficient suppression are solved.
In view of this, an embodiment of the present invention provides a frequency conversion device capable of implementing local oscillation suppression, where the frequency conversion device includes a radio frequency output circuit, configured to divide a first local oscillation signal into a first path of first local oscillation signal and a second path of first local oscillation signal with a phase difference of 180 ° and mix the first path of first local oscillation signal with an intermediate frequency signal, then perform power synthesis with the second path of first local oscillation signal to generate a synthesized signal, mix the synthesized signal with a second local oscillation signal after performing first filtering amplification, then perform second filtering amplification to generate a radio frequency signal, isolate the radio frequency signal, and output an isolated radio frequency signal; the monitoring circuit is used for coupling and dividing the radio frequency signals to obtain a first path of radio frequency signals and a second path of radio frequency signals, monitoring the first path of radio frequency signals and outputting monitoring signals; the detection circuit is used for detecting the second path of radio frequency signals and outputting detection signals; and the power supply control module is used for supplying power to the radio frequency output circuit, the monitoring circuit and the detection circuit, sending control signals and feeding the detection signals back to the upper computer.
Specifically, the wideband up-conversion device (i.e., a frequency conversion device) includes a transmit output channel (i.e., a radio frequency output circuit), a transmit output monitoring channel (i.e., a monitoring circuit), and a transmit output detection circuit (i.e., a detection circuit).
The embodiment can realize the frequency conversion from the L band to the KU band, and has a certain inhibition effect on local oscillation leakage. In addition, the embodiment can effectively solve the problem that the local oscillation signal is difficult to filter by a filter when an intermediate frequency is close to a local oscillation frequency point in the prior art. In addition, the embodiment adopts the integrated circuit chip to realize miniaturization and integration of the frequency conversion circuit, and can be widely applied to a transmission link of a radio frequency communication system.
In a possible implementation manner, the first input end of the radio frequency output circuit receives the first local oscillation signal, the second input end receives the intermediate frequency signal, the third input end receives the second local oscillation signal, and the first output end outputs the isolated radio frequency signal; the input end of the monitoring circuit receives the radio frequency signal; the input end of the detection circuit receives the second path of radio frequency signals; the output end of the power supply control module is connected with the power supply end and the power supply control end of the radio frequency output circuit, the monitoring circuit and the detection circuit.
In the prior art, a local oscillation signal (first local oscillation signal) is near a sideband of an intermediate frequency during first mixing, and a high-order filter cannot be placed due to size limitation, so that a good filtering effect cannot be achieved on the local oscillation signal.
In one possible implementation manner, as shown in fig. 1, a schematic circuit diagram of a frequency conversion device capable of implementing local oscillation suppression according to an embodiment of the present invention is shown, where in fig. 1, the radio frequency output channel includes a first amplifier 1, a 180 ° bridge 2, a first mixer 3, a second mixer 4, a first filter 5, a load 6, a phase modulation branch 20, a power combiner 7, a second filter 8, a second amplifier 9, a third mixer 10, a third amplifier 11, a third filter 12, a digital control attenuator 13, a fourth amplifier 14, a coupler 15, and an isolator 19; the input end of the first amplifier receives the first local oscillation signal, and the output end of the first amplifier is connected with the input end of the 180-degree bridge; a first output end of the 180-degree bridge is connected with a first input end of the first mixer, and a second output end of the 180-degree bridge is connected with a first input end of the second mixer; the input end of the first filter receives the intermediate frequency signal, and the output end of the first filter is connected with the second input end of the first mixer; the output end of the load is connected with the second input end of the second mixer; the output end of the first mixer is connected with the first input end of the power combiner; the output end of the second mixer is connected with the input end of the phase modulation branch; the output end of the phase modulation branch is connected with the second input end of the power combiner; the output end of the power combiner is connected with the input end of the second filter; the output end of the second filter is connected with the input end of the second amplifier; the output end of the second amplifier is connected with the first input end of the third mixer; the input end of the third amplifier receives the second local oscillation signal, and the output end of the third amplifier is connected with the second input end of the third mixer; the output end of the third mixer is connected with the input end of the third filter; the output end of the third filter is connected with the input end of the numerical control attenuator; the output end of the numerical control attenuator is connected with the input end of the fourth amplifier; the output end of the fourth amplifier is connected with the input end of the coupler; the first output end of the coupler is connected with the input end of the isolator; and the output end of the isolator outputs the isolated radio frequency signal.
Specifically, the embodiment designs a phase modulation branch of power division synthesis to eliminate the local oscillation signals, and the cancellation effect is generated when the signals are superimposed with 180 degrees of phase difference. In the link, a 180-degree bridge chip is adopted to divide an input local oscillation signal into two paths of signals with about 180-degree phase difference, and the two paths of signals are synthesized through a mixer and a combiner respectively.
In a specific example, the load outputs a zero frequency signal.
Further, the present embodiment ensures that the transmission paths of the two signals are basically consistent to ensure phase consistency, but the phase difference of the two signals before the power combiner cannot be ensured due to actual processing and assembly errors, so that a phase modulation branch is added to one path. In the test process, the phase error of the input signal of the power combiner is ensured to be 180 degrees by adjusting the phase modulation branches so as to achieve a good local oscillation cancellation effect.
In one possible implementation, the monitoring circuit in fig. 1 includes a power divider 16 and a switch 18; the input end of the power divider is connected with the second output end of the coupler; the first output end of the power divider is connected with the first end of the switch; the second end of the switch outputs the monitoring signal.
Specifically, the intermediate frequency signal in this embodiment is filtered and amplified twice, and then is coupled to one path at the final stage through the coupler to be used as a monitoring path.
In a possible implementation, the detection circuit in fig. 1 comprises a detector 17, the second output of which is connected to the input of the detector.
Specifically, the intermediate frequency signal in this embodiment is filtered and amplified twice, and then passes through the coupler at the final stage, and then passes through the power divider to perform power division for one-path detection, and returns to the detection level.
In a possible implementation, the first output terminal of the power control module 21 in fig. 1 is connected to the power terminal of the first amplifier; the second output end of the power supply control module is connected with the power supply end of the second amplifier; the third output end of the power supply control module is connected with the power supply end of the third amplifier; the fourth output end of the power control module is connected with the power control end of the numerical control attenuator; and a fifth output end of the power supply control module is connected with the second end of the switch.
Specifically, the power supply control board (i.e. the power supply control module) provides power supply and logic control for components and circuits in each circuit in the frequency conversion device, and can report a level signal to a superior system according to the detection circuit.
In a possible implementation manner, fig. 2 is a schematic structural diagram of a phase modulation branch of a frequency conversion device capable of implementing local oscillation suppression according to an embodiment of the present invention. The phase modulation branches shown in fig. 2 are a set of microstrip line structures with lengths being arbitrarily adjusted, and are used for realizing phase modulation by changing the lengths through gold wire bonding.
In one possible implementation, the phase modulation dendrite in fig. 2 includes multiple types of pads for gold bonding disposed on a substrate, the multiple types of pads including a first plurality of first type pads, a second plurality of second type pads, and a third type pad; the first type of bonding pads are rectangular bonding pads, and a first plurality of rectangular bonding pads are arranged in the first direction of the substrate at first intervals and are on the same straight line; the third type of bonding pad is a semi-annular bonding pad, and the semi-annular bonding pad is arranged on one side, far away from the same straight line, of the substrate in the second direction; the second type of bonding pads are square bonding pads, and the second plurality of square bonding pads comprise square bonding pads arranged in the first interval and square bonding pads arranged between one side of the same straight line and the semi-annular bonding pads in an array mode.
Specifically, the phase modulation branch knot is a group of microstrip line structures with variable lengths, and the actual electric length of the branch knot is changed through gold wire bonding to achieve the phase modulation effect.
Further, in order to meet the light and miniaturized design of the device, the phasing stub uses a plate material with a high dielectric constant as a substrate to reduce the size of the stub. Preferably, the dielectric constant is 9.9 or more.
The embodiment adopts an integrated circuit chip design, and can effectively reduce local oscillation leakage signals and reduce intermodulation components caused by local oscillation leakage through a local oscillation cancellation link and a phase modulation branch.
In one possible implementation manner, fig. 3 is a side view of a housing structure of a frequency conversion device capable of implementing local oscillation suppression according to an embodiment of the present invention; fig. 4 is a front view of a housing structure of a frequency conversion device capable of implementing local oscillation suppression according to an embodiment of the present invention. In fig. 3 and 4, the device further comprises a housing; a power supply and control signal input port provided on a side surface of the housing; an intermediate frequency signal input port provided on the front face of the housing; a radio frequency signal output port arranged on the same side of the housing as the power supply and control signal input port; and the first local oscillation signal input port and the second local oscillation signal input port are arranged on the same front face of the shell and the intermediate frequency signal input port.
Specifically, the apparatus further includes an outer housing 100 (housing), a power supply and control signal input port 200, an intermediate frequency signal input port 300, a radio frequency signal output port 400, and a local oscillation input port 500 (i.e., a first local oscillation signal input port and a second local oscillation signal input port).
The embodiment adopts the integrated circuit chip design and optimizes the power management, can effectively solve the problem that the local oscillation signal is close to an intermediate frequency band, and the filter has poor local oscillation inhibition effect, reduces the local oscillation signal power outside the intermediate frequency band, and improves the overall spurious index of the frequency conversion device.
The invention provides a frequency conversion method capable of realizing local oscillation suppression, which comprises the steps of utilizing a radio frequency output circuit to divide a first local oscillation signal into a first local oscillation signal and a second first local oscillation signal which are 180 degrees different in phase, mixing the first local oscillation signal with an intermediate frequency signal, then carrying out power synthesis on the first local oscillation signal and the second first local oscillation signal to generate a synthesized signal, carrying out first filtering amplification on the synthesized signal, mixing the synthesized signal with the second local oscillation signal, carrying out second filtering amplification on the synthesized signal, generating a radio frequency signal, isolating the radio frequency signal, and then outputting the isolated radio frequency signal; the monitoring circuit is utilized to couple and divide the radio frequency signals to obtain a first path of radio frequency signals and a second path of radio frequency signals, monitor the first path of radio frequency signals and output monitoring signals; detecting the second path of radio frequency signals by using a detection circuit and outputting detection signals; and the power supply control module is used for supplying power to the radio frequency output circuit, the monitoring circuit and the detection circuit, sending control signals and feeding the detection signals back to the upper computer.
The embodiment realizes that the signal is converted from the input intermediate frequency signal (L band) to the output radio frequency signal (KU band), and the leaked local oscillation signal is restrained by adopting a local oscillation cancellation mode so as to reduce intermodulation components caused by local oscillation leakage in a mixing link.
The embodiment adopts the integrated circuit chip design and optimizes the power management, can effectively solve the problem that the local oscillation signal is close to an intermediate frequency band, and the filter has poor local oscillation inhibition effect, reduces the local oscillation signal power outside the intermediate frequency band, and improves the overall spurious index of the frequency conversion device.
In the description of the present invention, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
It is further noted that in the description of the present invention, relational terms such as first and second, and the like are 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. Moreover, 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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
It should be understood that the foregoing examples of the present invention are provided merely for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention, and that various other changes and modifications may be made therein by one skilled in the art without departing from the spirit and scope of the present invention as defined by the appended claims.
Claims (10)
1. A frequency conversion device capable of realizing local oscillation suppression is characterized in that the device comprises
The radio frequency output circuit is used for dividing a first local oscillator signal into a first path of first local oscillator signal and a second path of first local oscillator signal which are 180 degrees different in phase, mixing the first path of first local oscillator signal with an intermediate frequency signal, then carrying out power synthesis on the first path of first local oscillator signal and the second path of first local oscillator signal to generate a synthesized signal, mixing the synthesized signal with the second local oscillator signal after first filtering amplification, then carrying out second filtering amplification to generate a radio frequency signal, isolating the radio frequency signal, and then outputting the isolated radio frequency signal;
the monitoring circuit is used for coupling and dividing the radio frequency signals to obtain a first path of radio frequency signals and a second path of radio frequency signals, monitoring the first path of radio frequency signals and outputting monitoring signals;
the detection circuit is used for detecting the second path of radio frequency signals and outputting detection signals;
and the power supply control module is used for supplying power to the radio frequency output circuit, the monitoring circuit and the detection circuit, sending control signals and feeding the detection signals back to the upper computer.
2. The frequency conversion apparatus capable of realizing local oscillation suppression according to claim 1, wherein,
a first input end of the radio frequency output circuit receives the first local oscillation signal, a second input end receives the intermediate frequency signal and a third input end receives the second local oscillation signal, and a first output end outputs the isolated radio frequency signal;
the input end of the monitoring circuit receives the radio frequency signal;
the input end of the detection circuit receives the second path of radio frequency signals;
the output end of the power supply control module is connected with the power supply end and the power supply control end of the radio frequency output circuit, the monitoring circuit and the detection circuit.
3. The frequency conversion device capable of realizing local oscillation suppression according to claim 2, wherein the radio frequency output circuit comprises a first amplifier, a 180 ° bridge, a first mixer, a second mixer, a first filter, a load, a phase modulation branch, a power combiner, a second filter, a second amplifier, a third mixer, a third amplifier, a third filter, a digital control attenuator, a fourth amplifier, a coupler and an isolator; wherein the method comprises the steps of
The input end of the first amplifier receives the first local oscillation signal, and the output end of the first amplifier is connected with the input end of the 180-degree bridge;
a first output end of the 180-degree bridge is connected with a first input end of the first mixer, and a second output end of the 180-degree bridge is connected with a first input end of the second mixer;
the input end of the first filter receives the intermediate frequency signal, and the output end of the first filter is connected with the second input end of the first mixer;
the output end of the load is connected with the second input end of the second mixer;
the output end of the first mixer is connected with the first input end of the power combiner;
the output end of the second mixer is connected with the input end of the phase modulation branch;
the output end of the phase modulation branch is connected with the second input end of the power combiner;
the output end of the power combiner is connected with the input end of the second filter;
the output end of the second filter is connected with the input end of the second amplifier;
the output end of the second amplifier is connected with the first input end of the third mixer;
the input end of the third amplifier receives the second local oscillation signal, and the output end of the third amplifier is connected with the second input end of the third mixer;
the output end of the third mixer is connected with the input end of the third filter;
the output end of the third filter is connected with the input end of the numerical control attenuator;
the output end of the numerical control attenuator is connected with the input end of the fourth amplifier;
the output end of the fourth amplifier is connected with the input end of the coupler;
the first output end of the coupler is connected with the input end of the isolator;
and the output end of the isolator outputs the isolated radio frequency signal.
4. The frequency conversion device capable of realizing local oscillation suppression according to claim 1, wherein the monitoring circuit comprises a power divider and a switch; wherein the method comprises the steps of
The input end of the power divider is connected with the second output end of the coupler;
the first output end of the power divider is connected with the first end of the switch;
the second end of the switch outputs the monitoring signal.
5. The frequency conversion device capable of suppressing a local oscillator according to claim 4, wherein the detection circuit comprises a detector, and the second output terminal of the power divider is connected to the input terminal of the detector.
6. The frequency conversion apparatus capable of suppressing local oscillation as defined in claim 5, wherein,
the first output end of the power supply control module is connected with the power supply end of the first amplifier;
the second output end of the power supply control module is connected with the power supply end of the second amplifier;
the third output end of the power supply control module is connected with the power supply end of the third amplifier;
the fourth output end of the power control module is connected with the power control end of the numerical control attenuator;
and a fifth output end of the power supply control module is connected with the second end of the switch.
7. The frequency conversion apparatus capable of suppressing local oscillation as defined in claim 6, wherein,
the phase modulation branch is a group of microstrip line structures with length being adjusted at will, and the phase modulation branch is used for realizing phase modulation by changing the length through gold wire bonding.
8. The frequency conversion apparatus capable of suppressing local oscillation as defined in claim 7, wherein,
the phase modulation branch comprises a plurality of types of bonding pads which are arranged on a substrate and used for gold wire bonding, wherein the plurality of types of bonding pads comprise a first plurality of first types of bonding pads, a second plurality of second types of bonding pads and a third type of bonding pads; wherein the method comprises the steps of
The first type of bonding pads are rectangular bonding pads, and a first plurality of rectangular bonding pads are arranged on the same straight line in a first direction of the substrate at first intervals;
the third type of bonding pad is a semi-annular bonding pad, and the semi-annular bonding pad is arranged on one side, far away from the same straight line, of the substrate in the second direction;
the second type of bonding pads are square bonding pads, and the second plurality of square bonding pads comprise square bonding pads arranged in the first interval and square bonding pads arranged between one side of the same straight line and the semi-annular bonding pads in an array mode.
9. The frequency conversion apparatus capable of suppressing local oscillation as defined in claim 8, further comprising
A housing;
a power supply and control signal input port provided on a side surface of the housing;
an intermediate frequency signal input port provided on the front face of the housing;
a radio frequency signal output port arranged on the same side of the housing as the power supply and control signal input port;
and the first local oscillation signal input port and the second local oscillation signal input port are arranged on the same front face of the shell and the intermediate frequency signal input port.
10. A frequency conversion method capable of realizing local oscillation suppression is characterized by comprising the following steps of
Dividing a first local oscillator signal into a first path of first local oscillator signal and a second path of first local oscillator signal with 180 DEG phase difference by using a radio frequency output circuit, mixing the first path of first local oscillator signal with an intermediate frequency signal, performing power synthesis with the second path of first local oscillator signal to generate a synthesized signal, mixing the synthesized signal with the second local oscillator signal after first filtering amplification, performing second filtering amplification to generate a radio frequency signal, isolating the radio frequency signal, and outputting the isolated radio frequency signal;
the monitoring circuit is utilized to couple and divide the radio frequency signals to obtain a first path of radio frequency signals and a second path of radio frequency signals, monitor the first path of radio frequency signals and output monitoring signals;
detecting the second path of radio frequency signals by using a detection circuit and outputting detection signals;
and the power supply control module is used for supplying power to the radio frequency output circuit, the monitoring circuit and the detection circuit, sending control signals and feeding the detection signals back to the upper computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311053556.2A CN117220619A (en) | 2023-08-21 | 2023-08-21 | Frequency conversion device and method capable of realizing local oscillation suppression |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311053556.2A CN117220619A (en) | 2023-08-21 | 2023-08-21 | Frequency conversion device and method capable of realizing local oscillation suppression |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117220619A true CN117220619A (en) | 2023-12-12 |
Family
ID=89048743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311053556.2A Pending CN117220619A (en) | 2023-08-21 | 2023-08-21 | Frequency conversion device and method capable of realizing local oscillation suppression |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117220619A (en) |
-
2023
- 2023-08-21 CN CN202311053556.2A patent/CN117220619A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6819200B2 (en) | Broadband balun and impedance transformer for push-pull amplifiers | |
| JP3106152B2 (en) | Integrated antenna / receiver unit | |
| JP2006513637A (en) | Low-cost millimeter-wave wireless outdoor unit (ODU) | |
| KR20070050466A (en) | Wireless data communication device | |
| TWI538400B (en) | Signal processing device | |
| CN111987995A (en) | Comb signal source based on mixing modulation feedback loop | |
| WO2021043306A1 (en) | Antenna device and antenna system | |
| CN210111948U (en) | Comb signal source based on mixing modulation feedback loop | |
| CN117220619A (en) | Frequency conversion device and method capable of realizing local oscillation suppression | |
| CN111697302A (en) | Power combining device | |
| CN111130462B (en) | Q/V frequency band ultra-wideband up-converter | |
| CN210926268U (en) | Compact multi-line Marchand plane balun device | |
| CN212258904U (en) | Up converter | |
| CN214851149U (en) | Miniaturized power amplification synthesis equipment | |
| Vosoogh et al. | An E-band compact frequency division duplex radio front-end based on gap waveguide technology | |
| JP2005027185A (en) | High frequency module | |
| CN215732288U (en) | VPX radio frequency board card | |
| CN208190637U (en) | S-band receiving unit | |
| CN111786637A (en) | Up converter | |
| CN101436870A (en) | Microwave low-waveband ultra-minitype auto-gain control heterodyne type acceptance die set | |
| CN117692018A (en) | C+X wave band receiving and transmitting frequency conversion device and method | |
| CN201118555Y (en) | Micro-wave low band ultra-micro automatic gain control external difference receiving module | |
| CN117579095A (en) | Ultra-thin Ku frequency band receiving and transmitting combination | |
| CN117914402A (en) | High-isolation dual-beam satellite-borne receiving and transmitting assembly | |
| CN115483941A (en) | Miniaturized Ka frequency channel transceiver |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |