CN112751577B - Ultra-wideband millimeter wave up-conversion transmitting device and method - Google Patents

Ultra-wideband millimeter wave up-conversion transmitting device and method Download PDF

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Publication number
CN112751577B
CN112751577B CN202011607114.4A CN202011607114A CN112751577B CN 112751577 B CN112751577 B CN 112751577B CN 202011607114 A CN202011607114 A CN 202011607114A CN 112751577 B CN112751577 B CN 112751577B
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switch
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frequency
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CN112751577A (en
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周建烨
刘祖深
凌云志
铁奎
汤瑞
赵润年
王永
梁辉
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Clp Kesiyi Technology Anhui Co ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/16—Multiple-frequency-changing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H04B2001/0491—Circuits with frequency synthesizers, frequency converters or modulators

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Transmitters (AREA)

Abstract

The invention discloses an ultra-wideband millimeter wave up-conversion transmitting device and a method, belonging to the field of mobile communication, wherein the ultra-wideband millimeter wave up-conversion transmitting device comprises a 90dB numerical control attenuator unit, a frequency mixing unit, each path of switch filtering unit, a 90dB coaxial attenuator, a frequency conversion local oscillator unit and an MCU control unit; each path of switch filtering unit comprises a 9 GHz-21 GHz switch filtering unit, a 20 GHz-31 GHz switch filtering unit, a 30 GHz-47 GHz switch filtering unit and a 46 GHz-67 GHz switch filtering unit. The input radio frequency signal and the local oscillation signal generated by the frequency conversion local oscillation unit are mixed, the frequency coverage of 5 GHz-67 GHz is realized by matching with a post-stage filter, the large-range and high-precision power control of the final output signal is realized, the bandwidth of a channel is as wide as 2GHz, the out-of-band suppression is good, the power output range is large, the accuracy is high, the universality is good, and the method is suitable for millimeter wave communication signal transmitters such as 5G, B5G.

Description

Ultra-wideband millimeter wave up-conversion transmitting device and method
Technical Field
The invention belongs to the field of mobile communication, and particularly relates to an ultra-wideband millimeter wave signal up-conversion transmitting device and method.
Background
Through the development of 2G, 3G and 4G, the mobile communication technology enters 5G communication at present, the coverage frequency band is also expanded to millimeter waves from a radio frequency band, particularly band n257(26.5 GHz-29.5 GHz), band n258(24.25 GHz-27.5 GHz), band n260(37 GHz-40 GHz), band n261(27.5 GHz-28.35 GHz) and the like of 5G FR2, the importance of the millimeter wave technology is further highlighted, the existing ultra-wideband millimeter wave up-conversion transmission scheme cannot achieve large-range power output of signals, is not high in precision, and cannot meet requirements of different occasions. The invention provides an up-conversion device from a radio frequency modulation signal to a millimeter wave frequency band aiming at the actual requirement of 5G millimeter wave signal simulation, which can cover 5G FR2 frequency band and can also extend the coverage of 5 GHz-67 GHz frequency band, the bandwidth of a channel reaches 2GHz, the out-of-band suppression is good, the power accuracy is high, the universality is good, and the simulation requirements of various millimeter wave signals are met.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides an ultra-wideband millimeter wave up-conversion transmitting device and method, which are used for up-converting a 5G +/-1 GHz radio frequency broadband signal to a millimeter wave frequency band to cover the 5 GHz-67 GHz frequency band, wherein the bandwidth of a channel reaches 2GHz, the design is reasonable, the defects in the prior art are overcome, and the ultra-wideband millimeter wave up-conversion transmitting device and method have good effects.
In order to achieve the aim 1, the invention adopts the following technical scheme:
an ultra-wideband millimeter wave up-conversion transmitting device comprises a 90dB numerical control attenuator unit, a frequency mixing unit, each path of switch filtering unit, a 90dB coaxial attenuator, a frequency conversion local oscillator unit and an MCU control unit;
the frequency mixing unit consists of 6 frequency mixers; each path of switch filtering unit comprises a 9 GHz-21 GHz switch filtering unit, a 20 GHz-31 GHz switch filtering unit, a 30 GHz-47 GHz switch filtering unit and a 46 GHz-67 GHz switch filtering unit;
preferably, the 90dB numerical control attenuator is connected with the first mixer, the second mixer, the third mixer and the fourth mixer through a 1-out-of-4 switch, the first mixer is divided into two paths through a 1-out-of-2 switch, one path is connected with the fifth mixer, and the fifth mixer is connected with a 1-out-of-5 switch; the other path of the mixed signal is connected with a sixth mixer, the sixth mixer is connected with a 46 GHz-67 GHz switch filtering unit, and the 46 GHz-67 GHz switch filtering unit is connected with a 1-from-5 switch;
the second mixer, the third mixer and the fourth mixer are respectively connected with the 9 GHz-21 GHz switch filter unit, the 20 GHz-31 GHz switch filter unit and the 30 GHz-47 GHz switch filter unit, and the 9 GHz-21 GHz switch filter unit, the 20 GHz-31 GHz switch filter unit and the 30 GHz-47 GHz switch filter unit are connected to the 1-out-of-5 switch;
the 1-out-of-5 switch is connected with a 90dB coaxial attenuator.
Preferably, each switch filtering unit comprises a first signal frequency band selection switch, a second signal frequency band selection switch and a filter, the first signal selection switch is connected with a first port of the filter, and a second port of the filter is connected with the second signal frequency band selection switch;
preferably, the MCU control unit implements on-off control, on-off filter bank control, variable frequency local oscillator generation control, and power control of the apparatus through ethernet communication.
In order to achieve the aim 2, the invention adopts the following technical scheme:
an ultra-wideband millimeter wave up-conversion transmitting method adopts an ultra-wideband millimeter wave up-conversion transmitting device, and comprises the following steps:
step 1: the MCU control unit controls the 90dB numerical control attenuator unit to perform accurate power control on the radio frequency signal;
and 2, step: the MCU control unit switches the 1-out-of-4 switch to realize corresponding frequency conversion;
and 3, step 3: the frequency mixing unit carries out frequency conversion processing on millimeter waves of the radio frequency signals, mixes the input radio frequency signals with local oscillation signals generated by the frequency conversion local oscillation unit, and outputs up-conversion signals;
and 4, step 4: the upper frequency conversion signal is filtered in sections by the 9 GHz-21 GHz switch filtering unit, the 20 GHz-31 GHz switch filtering unit, the 30 GHz-47 GHz switch filtering unit and the 46 GHz-67 GHz switch filtering unit, an ultra-wideband millimeter wave signal is output, the passband bandwidth is 2GHz, and the suppression of stray signals outside the band is realized;
and 5: through the switch of 1 from 5, the 90dB coaxial attenuator carries out the second power control to the ultra wide band millimeter wave signal, cooperates the 90dB numerical control attenuator to realize output signal large-range, high accuracy control.
Preferably, the frequency-converting local oscillator unit generates various local oscillator signals required for up-conversion, including LO 1: 11 GHz; LO 2: 22 GHz-25 GHz; LO 3: 36 GHz-50 GHz; LO 4: 62 GHz-67 GHz; LO 5: 15 GHz-25 GHz; LO 6: 16 GHz-25 GHz; LO 7: 36 GHz-51 GHz and provides local oscillation signals for up-conversion.
Preferably, in step 3, when the input radio frequency signal is mixed with a local oscillator signal LO1 generated by the variable frequency local oscillator unit to generate an up-conversion signal, the up-conversion signal is divided into two paths through a 1-out-of-2 switch, and one path of the up-conversion signal is mixed with a local oscillator signal LO2 to generate an ultra-wideband millimeter wave signal of 5GHz to 10 GHz; and the other path of frequency conversion signal is mixed with local oscillation signals LO3 and LO4, and the generated signal passes through a 46 GHz-67 GHz switch filtering module to generate an ultra-wideband millimeter wave signal of 46 GHz-67 GHz.
Preferably, in step 3, when the input radio frequency signal is mixed with the local oscillator signal LO5 generated by the frequency conversion local oscillator unit, the output up-conversion signal passes through the 9 GHz-21 GHz switch filtering module to generate an ultra-wideband millimeter wave signal of 9 GHz-21 GHz; when the input radio frequency signal is mixed with a local oscillation signal LO6 generated by the frequency conversion local oscillation unit, the output up-conversion signal passes through a 20 GHz-31 GHz switch filtering module to generate an ultra-wideband millimeter wave signal of 20 GHz-31 GHz; when the input radio frequency signal is mixed with the local oscillation signal LO7 generated by the frequency conversion local oscillation unit, the output up-conversion signal passes through the 36 GHz-51 GHz switch filtering module to generate an ultra-wideband millimeter wave signal of 36 GHz-51 GHz.
The invention has the following beneficial technical effects:
the invention introduces an ultra-wideband millimeter wave up-conversion transmitting device, which can up-convert 5G +/-1 GHz radio frequency broadband signals to a millimeter wave frequency band, cover the frequency band of 5 GHz-67 GHz, has the channel bandwidth of 2GHz, has good out-of-band inhibition, high power accuracy and good universality, can be suitable for millimeter wave communication signal transmitters such as 5G, B5G and the like, and has good practicability.
Aiming at the actual requirements of millimeter wave band signal simulation of 5G mobile communication at present, band n257(26.5 GHz-29.5 GHz), band n258(24.25 GHz-27.5 GHz), band n260(37 GHz-40 GHz), band n261(27.5 GHz-28.35 GHz) and other frequency bands of 5G FR2 are covered by means of segmented frequency mixing filtering. Meanwhile, the frequency band is expanded to 5 GHz-67 GHz, so that the wide coverage of millimeter wave signals is met; the two-stage power control of the radio frequency numerical control attenuator and the millimeter wave coaxial attenuator is adopted to realize the large-range and high-precision power output of signals and meet the requirements of different occasions. The signal frequency band coverage is wide and ultra wide; the output power range is large, the precision is high, the application is wide, and the effect is good after test verification.
Drawings
FIG. 1 is a functional block diagram of the present invention;
wherein, a 90dB digital control attenuator unit is provided; ② a frequency mixing unit; ③ 9GHz to 21GHz switch filtering unit; fourthly, a-20 GHz-31 GHz switch filter unit; fifthly, switching a filtering unit between 30GHz and 47 GHz; sixthly, a-46 GHz-67 GHz switch filtering unit; -90dB coaxial attenuator; eighthly, a frequency conversion local oscillation unit; ninthly-the MCU control unit;
FIG. 2 shows a 9 GHz-21 GHz switch filter unit;
FIG. 3 shows a 20 GHz-31 GHz switch filter unit;
FIG. 4 shows a 30 GHz-47 GHz switch filter unit;
FIG. 5 shows a 46 GHz-67 GHz switch filter unit;
Detailed Description
The invention is described in further detail below with reference to the following figures and detailed description:
as shown in figure 1, the ultra-wideband millimeter wave up-conversion transmitting device comprises a 90dB numerical control attenuator unit I, a frequency mixing unit II, each path of switch filtering units, a 90dB coaxial attenuator unit, a frequency conversion local oscillator unit and an MCU control unit;
the frequency mixing unit consists of 6 frequency mixers; each path of switch filtering unit comprises a 9 GHz-21 GHz switch filtering unit, a 20 GHz-31 GHz switch filtering unit, a 30 GHz-47 GHz switch filtering unit, and a 46 GHz-67 GHz switch filtering unit;
specifically, the 90dB numerical control attenuator is connected with a first frequency mixer, a second frequency mixer, a third frequency mixer and a fourth frequency mixer through a 4-to-1 switch, the first frequency mixer is divided into two paths through a 2-to-1 switch, one path is connected with a fifth frequency mixer, and the fifth frequency mixer is connected with a 5-to-1 switch; the other path of the output signal is connected with a sixth mixer, the sixth mixer is connected with a 46 GHz-67 GHz switch filtering unit, and the 46 GHz-67 GHz switch filtering unit is connected to a 1-out-of-5 switch;
the second mixer, the third mixer and the fourth mixer are respectively connected with the 9 GHz-21 GHz switch filter unit, the 20 GHz-31 GHz switch filter unit, the 30 GHz-47 GHz switch filter unit, the 9 GHz-21 GHz switch filter unit, the 20 GHz-31 GHz switch filter unit, the 30 GHz-47 GHz switch filter unit are connected to the 5-out-of-1 switch;
the 1-out-of-5 switch is connected with a 90dB coaxial attenuator.
As shown in fig. 2 to 5, the 9GHz to 21GHz switch filter unit c includes a first 6-to-1 switch, a second 6-to-1 switch, and a filter, where the first 6-to-1 switch is connected to a first port of the filter, and a second port of the filter is connected to the second 6-to-1 switch.
The 20 GHz-31 GHz switch filtering unit comprises a first 5-to-1 switch, a second 5-to-1 switch and a filter, wherein the first 5-to-1 switch is connected with a first port of the filter, and a second port of the filter is connected with the second 5-to-1 switch.
The filtering unit of the 30 GHz-47 GHz switch comprises a first 8-to-1 switch, a second 8-to-1 switch and a filter, wherein the first 8-to-1 switch is connected with a first port of the filter, and a second port of the filter is connected with the second 8-to-1 switch.
The 46 GHz-67 GHz switch filtering unit comprises a first single-pole-ten-throw (SP10T) switch, a second single-pole-ten-throw (SP10T) switch and a filter, wherein the first single-pole-ten-throw (SP10T) switch is connected with a first port of the filter, and a second port of the filter is connected with a second single-pole-ten-throw (SP10T) switch.
Specifically, the MCU control unit implements on-off control, on-off filter bank control, variable frequency local oscillator generation control, and power control of the device through ethernet communication.
An ultra-wideband millimeter wave up-conversion transmitting method adopts an ultra-wideband millimeter wave up-conversion transmitting device, and comprises the following steps:
step 1: the MCU control unit controls the 90dB numerical control attenuator unit to perform accurate power control on the radio frequency signal;
step 2: the MCU control unit switches the 1-out-of-4 switch to realize corresponding frequency conversion;
and step 3: the frequency mixing unit carries out frequency conversion processing on millimeter waves of the radio frequency signals, mixes the input radio frequency signals with local oscillation signals generated by the frequency conversion local oscillation unit, and outputs up-conversion signals;
and 4, step 4: the upper frequency conversion signal is filtered in sections by the 9 GHz-21 GHz switch filtering unit, the 20 GHz-31 GHz switch filtering unit, the 30 GHz-47 GHz switch filtering unit and the 46 GHz-67 GHz switch filtering unit, an ultra-wideband millimeter wave signal is output, and the passband bandwidth is 2 GHz;
and 5: through a switch of 1 from 5, the 90dB coaxial attenuator performs secondary power control on the ultra-wideband millimeter wave signal, and the 90dB digital control attenuator is matched to realize large-range and high-precision control of an output signal;
specifically, the frequency conversion local oscillation unit generates various local oscillation signals required by the up-conversion, including LO 1: 11 GHz; LO 2: 22 GHz-25 GHz; LO 3: 36 GHz-50 GHz; LO 4: 62 GHz-67 GHz; LO 5: 15 GHz-25 GHz; LO 6: 16 GHz-25 GHz; LO 7: 36 GHz-51 GHz, and provides local oscillation signals for up-conversion.
Specifically, in step 3, when the input radio frequency signal is mixed with a local oscillation signal LO1 generated by a frequency conversion local oscillation unit to generate an up-conversion signal, the up-conversion signal is divided into two paths through a 1-out-of-2 switch, and one path of the up-conversion signal is mixed with a local oscillation signal LO2 to generate an ultra-wideband millimeter wave signal of 5GHz to 10 GHz; and the other path of frequency conversion signal is mixed with local oscillation signals LO3 and LO4, and the generated signal passes through a 46 GHz-67 GHz switch filtering module to generate an ultra-wideband millimeter wave signal of 46 GHz-67 GHz.
Specifically, in step 3, when the input radio frequency signal is mixed with the local oscillator signal LO5 generated by the frequency conversion local oscillator unit, the output up-conversion signal passes through the 9 GHz-21 GHz switch filtering module to generate an ultra-wideband millimeter wave signal of 9 GHz-21 GHz; when the input radio frequency signal is mixed with a local oscillation signal LO6 generated by the frequency conversion local oscillation unit, the output up-conversion signal passes through a 20 GHz-31 GHz switch filtering module to generate an ultra-wideband millimeter wave signal of 20 GHz-31 GHz; when the input radio frequency signal is mixed with the local oscillation signal LO7 generated by the frequency conversion local oscillation unit, the output up-conversion signal passes through the 36 GHz-51 GHz switch filtering module to generate an ultra-wideband millimeter wave signal of 36 GHz-51 GHz.
The above is a complete implementation process of the present embodiment.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make modifications, alterations, additions or substitutions within the spirit and scope of the present invention.

Claims (7)

1. An ultra-wideband millimeter wave up-conversion transmitting device is characterized by comprising a 90dB numerical control attenuator unit, a frequency mixing unit, each path of switch filtering unit, a 90dB coaxial attenuator, a frequency conversion local oscillator unit and an MCU control unit;
the frequency mixing unit consists of 6 frequency mixers; each path of switch filtering unit comprises a 9 GHz-21 GHz switch filtering unit, a 20 GHz-31 GHz switch filtering unit, a 30 GHz-47 GHz switch filtering unit and a 46 GHz-67 GHz switch filtering unit;
the 90dB numerical control attenuator is connected with a first frequency mixer, a second frequency mixer, a third frequency mixer and a fourth frequency mixer through a 1-from-4 switch, the first frequency mixer is divided into two paths through a 1-from-2 switch, one path of the first frequency mixer is connected with a fifth frequency mixer, and the fifth frequency mixer is connected with a 1-from-5 switch; the other path of the mixed signal is connected with a sixth mixer, the sixth mixer is connected with a 46 GHz-67 GHz switch filtering unit, and the 46 GHz-67 GHz switch filtering unit is connected with a 1-from-5 switch;
the second mixer, the third mixer and the fourth mixer are respectively connected with the 9 GHz-21 GHz switch filter unit, the 20 GHz-31 GHz switch filter unit and the 30 GHz-47 GHz switch filter unit, and the 9 GHz-21 GHz switch filter unit, the 20 GHz-31 GHz switch filter unit and the 30 GHz-47 GHz switch filter unit are connected to the 1-out-of-5 switch;
the 1-out-of-5 switch is connected to a 90dB coaxial attenuator.
2. The device of claim 1, wherein each switch filter unit comprises a first signal band selection switch, a second signal band selection switch, and a filter, the first signal band selection switch is connected to a first port of the filter, and the second port of the filter is connected to the second signal band selection switch.
3. The device of claim 1, wherein the MCU control unit implements on-off control, on-off filter bank control, frequency conversion local oscillator generation control, and power control of the device through Ethernet communication.
4. An ultra-wideband millimeter wave up-conversion transmitting method, which adopts the ultra-wideband millimeter wave up-conversion transmitting device as claimed in any one of claims 1 to 3, and is characterized by comprising the following steps:
step 1: the MCU control unit controls the 90dB numerical control attenuator unit to perform accurate power control on the radio frequency signal;
step 2: the MCU control unit switches the 1-out-of-4 switch to realize corresponding frequency conversion;
and step 3: the frequency mixing unit carries out frequency conversion processing on millimeter waves of the radio frequency signals, mixes the input radio frequency signals with local oscillation signals generated by the frequency conversion local oscillation unit, and outputs up-conversion signals;
and 4, step 4: the upper frequency conversion signal is filtered in sections by the 9 GHz-21 GHz switch filtering unit, the 20 GHz-31 GHz switch filtering unit, the 30 GHz-47 GHz switch filtering unit and the 46 GHz-67 GHz switch filtering unit, an ultra-wideband millimeter wave signal is output, and the passband bandwidth is 2 GHz;
and 5: through the switch of 1 from 5, the 90dB coaxial attenuator carries out the second power control to the ultra wide band millimeter wave signal, cooperates the 90dB numerical control attenuator to realize output signal large-range, high accuracy control.
5. The method according to claim 4, wherein the frequency conversion local oscillator unit generates various local oscillator signals required for frequency conversion, including LO 1: 11 GHz; LO 2: 22 GHz-25 GHz; LO 3: 36 GHz-50 GHz; LO 4: 62 GHz-67 GHz; LO 5: 15 GHz-25 GHz; LO 6: 16 GHz-25 GHz; LO 7: 36 GHz-51 GHz.
6. The method according to claim 5, wherein in step 3, when the input radio frequency signal is mixed with the local oscillator signal LO1 generated by the frequency conversion local oscillator unit to generate an up-conversion signal, the up-conversion signal is divided into two paths by a switch selected from 1 to 2, and one path is mixed with the local oscillator signal LO2 to generate an ultra-wideband millimeter wave signal of 5GHz to 10 GHz; and the other single-channel frequency conversion signal is mixed with local oscillation signals LO3 and LO4, and the generated signal passes through a 46 GHz-67 GHz switch filtering module to generate a 46 GHz-67 GHz ultra-wideband millimeter wave signal.
7. The method according to claim 5, wherein in step 3, when the input rf signal is mixed with the LO5 generated by the LO unit, the output up-converted signal passes through the 9 GHz-21 GHz switch filter module to generate the ultra-wideband mm-wave signal of 9 GHz-21 GHz; when the input radio frequency signal is mixed with a local oscillation signal LO6 generated by the frequency conversion local oscillation unit, the output up-conversion signal passes through a 20 GHz-31 GHz switch filtering module to generate an ultra-wideband millimeter wave signal of 20 GHz-31 GHz; when the input radio frequency signal is mixed with the local oscillation signal LO7 generated by the frequency conversion local oscillation unit, the output up-conversion signal passes through the 36 GHz-51 GHz switch filtering module to generate an ultra-wideband millimeter wave signal of 36 GHz-51 GHz.
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JP2014022812A (en) * 2012-07-13 2014-02-03 Sharp Corp Millimeter wave module, millimeter wave transmission device, and millimeter wave receiving device

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