CN113411138A - Plug-and-play terahertz communication system based on resonant tunneling diode - Google Patents
Plug-and-play terahertz communication system based on resonant tunneling diode Download PDFInfo
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- CN113411138A CN113411138A CN202110633214.2A CN202110633214A CN113411138A CN 113411138 A CN113411138 A CN 113411138A CN 202110633214 A CN202110633214 A CN 202110633214A CN 113411138 A CN113411138 A CN 113411138A
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- 238000004891 communication Methods 0.000 title claims abstract description 69
- 230000005641 tunneling Effects 0.000 title claims abstract description 34
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- 230000010355 oscillation Effects 0.000 abstract 1
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- 238000013461 design Methods 0.000 description 3
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/90—Non-optical transmission systems, e.g. transmission systems employing non-photonic corpuscular radiation
Abstract
The invention discloses a plug-and-play terahertz communication system based on a resonant tunneling diode. The method comprises the following steps: the terahertz tunable filter comprises a terahertz antenna, a terahertz power amplifier, a terahertz low-noise amplifier, a resonant tunneling diode oscillation source, a terahertz receiver, a modem, a computer, processing software and the like. Service signals such as video, data or voice and the like are subjected to amplitude modulation through a modulation module, then are coupled with direct current signals through a Bias Tee and then are input into a resonant tunneling diode, form terahertz frequency band carrier current signals after being mixed with signals of a resonant tunneling diode oscillator, and are output as free space electromagnetic wave signals through a terahertz antenna; the electromagnetic wave signal is transmitted for a certain distance and then is received by a receiving antenna and then is reduced into a current signal, and the current signal is output by a terahertz receiver and then is input into a modem to be reduced into service signals such as video, data or voice.
Description
Technical Field
The invention relates to the field of communication, scientific experiments and communication, in particular to a plug-and-play terahertz communication system based on a resonant tunneling diode.
Background
As 5G goes into commerce, 6G development also goes into human vision. The realization of high-speed interconnection and intercommunication is an urgent need in the current communication industry by a brand-new and ultrahigh-speed wireless communication intervention means. Terahertz is one of means for realizing the requirement, and with the deepening of the terahertz technology research, the terahertz system has a very urgent need for a terahertz wave radiation source, and the terahertz wave generation technology applicable at room temperature becomes a bottleneck of the development of the terahertz technology. At present, devices such as terahertz wave emission sources (such as quantum cascade lasers) based on an optical method need to generate terahertz wave radiation under the condition of low-temperature refrigeration, and the frequency is generally above 1 THz; an emission source (such as a traveling wave tube, a return wave tube and the like) based on an electronics method needs to radiate terahertz waves under the condition of auxiliary equipment such as a high-power supply and the like. Therefore, the room temperature application, miniaturization (within the range of chip size) and integration terahertz radio frequency front end are necessary preconditions for realizing wide application of the terahertz wireless communication system at home and abroad at present.
At present, an existing terahertz source device is not reasonable in design, is difficult to work at room temperature, is greatly restricted by the environment when in use, and is not ideal in convenience.
Disclosure of Invention
The invention overcomes the defects of the prior art and provides a plug-and-play terahertz communication system based on a resonant tunneling diode.
In order to achieve the purpose, the invention adopts the technical scheme that: a plug-and-play terahertz communication system based on a resonant tunneling diode comprises: the terahertz wave antenna comprises a terahertz antenna, a terahertz low-noise amplifier, a terahertz receiver, a resonant tunneling diode, a modem and processing software.
The communication system adopts a resonant tunneling diode as a transmission source of the terahertz communication system, the terahertz antenna is used for outputting a carrier current signal as a free space electromagnetic wave signal, the terahertz antenna is also used for receiving the free space electromagnetic wave signal, and the terahertz receiver is used for converting the current signal into an amplitude signal.
And a modulation module is arranged in the modem, and is used for carrying out amplitude modulation on the service signal, and the modulation module can restore the amplitude signal to the service signal.
In a preferred embodiment of the present invention, the service signal includes: voice signals, video signals, and data signals.
In a preferred embodiment of the present invention, the overall communication system can be designed to be any one of the sizes of the usb flash disk and the chassis according to the working scene and the communication distance.
In a preferred embodiment of the present invention, the terahertz receiver in the communication system detects the amplitude of the received signal in two different forms, namely, a terahertz detector and a terahertz radiometer.
In a preferred embodiment of the present invention, the communication system employs one of PAM, OOK, QPSK, and QAM modulation schemes.
In a preferred embodiment of the present invention, the communication system employs a low power device and System On Chip (SOC) design.
In a preferred embodiment of the present invention, the communication system can be connected to the communication system in a usb-like mode to realize plug-and-play high-speed data communication.
In a preferred embodiment of the present invention, the thz antenna is selected from one of an on-chip antenna, a conventional horn antenna, a coriolis antenna, and a metamaterial antenna according to an operating frequency and a technical requirement.
In a preferred embodiment of the present invention, the method comprises the following steps:
step S1: the service signal is subjected to amplitude modulation through a modulation module, and the amplitude-modulated service signal and the direct current signal are coupled through the Bias Tee and then input into a resonant tunneling diode;
step S2: forming a terahertz frequency band carrier current signal after mixing with the resonant tunneling diode signal, wherein the terahertz frequency band carrier current signal is output as a free space electromagnetic wave signal through a terahertz antenna;
step S3: after the free space electromagnetic wave signal is transmitted for a certain distance, the free space electromagnetic wave signal is received by the terahertz antenna and then reduced into a current signal, and the current signal is output by the terahertz receiver and then input into the modem to be reduced into a service signal.
In a preferred embodiment of the present invention, the thz power amplifier and the thz low noise amplifier can be selectively used according to an operating frequency and a communication distance.
The invention solves the defects in the background technology, and has the following beneficial effects:
(1) the terahertz source device uses the resonant tunneling diode as a novel terahertz source device, can work in a room temperature environment and can work in a common environment, so that the environment adaptability is better when the whole equipment is applied.
(2) The integral communication system can be designed into any one of the sizes of a U disk or a case according to a working scene and a communication distance, the advantages of miniaturization, portability and the like can be further realized, and the plug-and-play terahertz real-time high-speed communication system can be realized by combining with other terahertz devices, so that the use is more convenient.
(3) The terahertz power amplifier and the terahertz low-noise amplifier can be selectively used according to the working frequency and the communication distance, so that the application range of the communication system is effectively expanded, the application range of the whole communication system is improved, one of an on-chip antenna, a traditional horn antenna, a Ka-shi antenna and a metamaterial antenna is selected according to the working frequency and the technical requirement, the application range of the communication system is further expanded, and the application range of the whole communication system is effectively improved.
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 described in 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 flow chart of the working principle of the preferred embodiment of the invention.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
A plug-and-play terahertz communication system based on a resonant tunneling diode comprises: the terahertz wave antenna comprises a terahertz antenna, a terahertz low-noise amplifier, a terahertz receiver, a resonant tunneling diode, a modem and processing software.
The communication system adopts a resonant tunneling diode as a transmission source of the terahertz communication system, the terahertz antenna is used for outputting a carrier current signal as a free space electromagnetic wave signal, the terahertz antenna is also used for receiving the free space electromagnetic wave signal, and the terahertz receiver is used for converting the current signal into an amplitude signal.
And a modulation module is arranged in the modem, and is used for carrying out amplitude modulation on the service signal, and the modulation module can restore the amplitude signal to the service signal.
In a preferred embodiment of the invention, the resonant tunneling diode is used as a novel terahertz source device, the terahertz source device can work in a room temperature environment and can work in a common environment, so that the environmental adaptability of the whole equipment is better when the terahertz source device is applied.
In a preferred embodiment of the invention, the whole communication system can be designed into any one of the sizes of a U disk and a case according to a working scene and a communication distance, so that the advantages of miniaturization, portability and the like are further realized.
In a preferred embodiment of the present invention, the terahertz receiver in the communication system detects the amplitude of the received signal in two different forms, namely, the terahertz detector or the terahertz radiometer, and detects the amplitude of the received signal in two different forms simultaneously, so as to further improve the data detection accuracy and ensure the accurate transmission of the data signal.
In a preferred embodiment of the present invention, the communication system adopts one of the four modulation modes of PAM, OOK, QPSK, and QAM, and selects different modulation modes according to the requirements, so that the data transmission of the whole communication system is more diversified, and the modulation of the communication system is more convenient.
In a preferred embodiment of the present invention, the thz power amplifier and the thz low noise amplifier can be selectively used according to the working frequency and the communication distance, so as to effectively expand the application range of the communication system, thereby improving the application range of the entire communication system.
In a preferred embodiment of the present invention, the terahertz antenna selects one of an on-chip antenna, a conventional horn antenna, a coriolis antenna, and a metamaterial antenna according to the operating frequency and technical requirements, so as to further expand the application range of the communication system and effectively improve the application range of the entire communication system.
In a preferred embodiment of the present invention, the terahertz antenna, the terahertz power amplifier, the terahertz low noise amplifier, and the terahertz receiver may also be different operating frequencies such as a millimeter wave antenna, a millimeter wave amplifier, a millimeter wave low noise amplifier, and a millimeter wave receiver, so as to further improve the application range of the communication system.
In a preferred embodiment of the invention, the communication system can be designed into different forms such as USB power supply or special power supply according to the working scene and the communication distance, thereby effectively improving the convenience in use; on the other hand, the communication system adopts a low-power-consumption device and a System On Chip (SOC) design, so that the power consumption can be further reduced, and the practicability is higher.
When the invention is used, a service signal is subjected to amplitude modulation through a modulation module, and the amplitude-modulated service signal is coupled with a direct current signal through the Bias Tee and then input into a resonant tunneling diode; forming a terahertz frequency band carrier current signal after mixing with the resonant tunneling diode signal, wherein the terahertz frequency band carrier current signal is output as a free space electromagnetic wave signal through a terahertz antenna; after the free space electromagnetic wave signal is transmitted for a certain distance, the free space electromagnetic wave signal is received by the terahertz antenna and then reduced into a current signal, and the current signal is output by the terahertz receiver and then input into the modem to be reduced into a service signal.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. A plug-and-play terahertz communication system based on a resonant tunneling diode is characterized by comprising: the terahertz antenna comprises a terahertz antenna, a terahertz low-noise amplifier, a terahertz receiver, a resonant tunneling diode, a modem and processing software;
the communication system adopts a resonant tunneling diode as a transmission source of the terahertz communication system, the terahertz antenna is used for outputting a carrier current signal as a free space electromagnetic wave signal, the terahertz antenna is also used for receiving the free space electromagnetic wave signal, and the terahertz receiver is used for converting the current signal into an amplitude signal;
and a modulation module is arranged in the modem, and is used for carrying out amplitude modulation on the service signal, and the modulation module can restore the amplitude signal to the service signal.
2. The resonant tunneling diode-based plug-and-play terahertz communication system according to claim 1, wherein the service signal comprises: voice signals, video signals, and data signals.
3. The resonant tunneling diode-based plug-and-play terahertz communication system according to claim 1, wherein the overall communication system can be designed to be any one of the two sizes of a U disk size and a case size according to a working scene and a communication distance.
4. The resonant tunneling diode-based plug-and-play terahertz communication system according to claim 1, wherein the terahertz receiver in the communication system detects the amplitude of the received signal in two different forms, namely a terahertz wave detector or a terahertz radiometer.
5. The resonant tunneling diode-based plug-and-play terahertz communication system according to claim 1, wherein the communication system employs one of four modulation modes, PAM, OOK, QPSK and QAM.
6. The resonant tunneling diode-based plug-and-play terahertz communication system according to claim 1, wherein the communication system is designed with a low power device and a System On Chip (SOC).
7. The resonant tunneling diode-based plug-and-play terahertz communication system according to claim 1, wherein: the communication system can be connected with the communication system in a USB flash disk-like mode to realize plug-and-play high-speed data communication.
8. The resonant tunneling diode-based plug-and-play terahertz communication system according to claim 1, wherein: the terahertz antenna is characterized in that one of an on-chip antenna, a traditional horn antenna, a Cascade antenna and a metamaterial antenna is selected according to the working frequency and the technical requirement.
9. The use method of the resonant tunneling diode-based plug-and-play terahertz communication system according to claim 1, characterized by comprising the following steps:
step S1: the service signal is subjected to amplitude modulation through a modulation module, and the amplitude-modulated service signal and the direct current signal are coupled through the Bias Tee and then input into a resonant tunneling diode;
step S2: forming a terahertz frequency band carrier current signal after mixing with the resonant tunneling diode signal, wherein the terahertz frequency band carrier current signal is output as a free space electromagnetic wave signal through a terahertz antenna;
step S3: after the free space electromagnetic wave signal is transmitted for a certain distance, the free space electromagnetic wave signal is received by the terahertz antenna and then reduced into a current signal, and the current signal is output by the terahertz receiver and then input into the modem to be reduced into a service signal.
10. The use method of the resonant tunneling diode-based plug-and-play terahertz communication system according to claim 1, characterized in that: the terahertz power amplifier and the terahertz low-noise amplifier can be selectively used according to the working frequency and the communication distance.
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2021
- 2021-06-07 CN CN202110633214.2A patent/CN113411138A/en active Pending
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| CN103594821A (en) * | 2013-11-27 | 2014-02-19 | 天津工业大学 | Dual-slot antenna based on resonant tunneling mechanism |
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