CN115051717A - Radio station and antenna integrated communication device and communication method - Google Patents
Radio station and antenna integrated communication device and communication method Download PDFInfo
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- CN115051717A CN115051717A CN202210779912.8A CN202210779912A CN115051717A CN 115051717 A CN115051717 A CN 115051717A CN 202210779912 A CN202210779912 A CN 202210779912A CN 115051717 A CN115051717 A CN 115051717A
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- 239000005433 ionosphere Substances 0.000 description 3
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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
- H04B1/005—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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/246—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
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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
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
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Abstract
The invention provides a radio station and antenna integrated communication device and a communication method, which belong to the technical field of communication, and specifically comprise a short-wave radio station, a conjugate matching piece and a short-wave antenna, wherein an output impedance end of the short-wave radio station is connected with an input impedance end of the short-wave antenna through the conjugate matching piece; the real part of the output impedance of the short-wave radio station and the real part of the input impedance of the short-wave antenna synchronously change along with the frequency of the short wave, so that the automatic matching of the real part of the impedance is realized; and the imaginary part of the output impedance of the short-wave radio station and the imaginary part of the input impedance of the short-wave antenna realize conjugate matching through a conjugate matching piece. The invention omits the process of impedance matching between the prior radio station and the antenna, introduces the conjugate matching piece, directly connects the radio station and the antenna, automatically matches the impedance of the radio station and the antenna, and greatly improves the power output of the short-wave radio station and the matching efficiency of the short-wave antenna.
Description
Technical Field
The invention belongs to the technical field of communication, relates to a short-wave communication technology, and particularly relates to a radio station and antenna integrated communication device and a communication method for short-wave communication.
Background
Short-wave communication is one of radio communication modes, in long-distance communication, the short-wave communication can realize communication in a long-distance mobile state without establishing a relay station, in the short-wave long-distance communication, the transmission path of electromagnetic waves mainly adopts a sky wave mode, and electromagnetic waves at a transmitting end reach a receiving end through one or more reflections of an ionized layer; in the atmosphere within the range of 50 kilometers to hundreds of kilometers above the ground, a part of gas molecules lose electrons due to the action of solar radiation and cosmic rays, the gas generates ionization phenomenon, and positively charged ions and free electrons are generated, and the atmospheric layer is called as an ionized layer; compared with other frequency bands, the ionosphere has better reflection characteristic to the short-wave frequency band, the earth is a good conductor, and electromagnetic waves can generate multiple reflections in the space between the ionosphere and the earth surface, so that the ionosphere is used for long-distance communication, and the short-wave communication is suitable for mobile platforms such as backpacks and vehicles, and is one of the irreplaceable communication modes of the mobile platforms at present and in the future; therefore, the research on short-wave communication has profound significance.
The short-wave radio station and the short-wave antenna in the traditional short-wave communication system are designed separately, the radio station is designed according to the principle that an AD sampling signal is sent to a power amplifier through a frequency conversion modulator, the power amplifier transmits the signal to an impedance converter, the impedance is converted and then output to the antenna, for a large short-wave antenna, due to the fact that the size is large, the impedance of the antenna is easy to match to a corresponding resistance value, and the impedance matching efficiency is relatively high; for a small short-wave antenna, the antenna size is very small, and the antenna cannot be directly matched with the resistance value of a radio station, an impedance converter or a matching network is needed for matching, but insertion loss is generated through the impedance converter or the matching network, so that the power output of the radio station and the matching efficiency of the antenna are greatly reduced.
Disclosure of Invention
The invention provides a radio and antenna integrated communication device and a communication method for short-wave communication, aiming at the problems that the existing short-wave radio and short-wave antenna are separately designed, and the small short-wave antenna generates insertion loss when being matched with the radio in impedance, so that the power output of the radio and the matching efficiency of the antenna are greatly reduced.
According to the invention, an impedance converter between the conventional radio station and the small antenna is removed, and the short-wave radio station and the short-wave antenna are connected in an integrated communication manner, so that the direct matching of the short-wave radio station and the short-wave antenna is realized, the insertion loss is avoided, and the matching efficiency between the radio station and the antenna is greatly improved; the specific technical scheme is as follows:
the radio station and antenna integrated communication device for short-wave communication comprises a short-wave radio station, a conjugate matching piece and a short-wave antenna, wherein an output impedance end of the short-wave radio station is connected with an input impedance end of the short-wave antenna through the conjugate matching piece; the real part of the output impedance of the short-wave radio station and the real part of the input impedance of the short-wave antenna synchronously change along with the frequency of the short wave, so that the automatic matching of the real part of the impedance is realized; and the imaginary part of the output impedance of the short-wave radio station and the imaginary part of the input impedance of the short-wave antenna realize conjugate matching through a conjugate matching piece.
Further, the conjugate matching element is an adjustable inductor or an adjustable capacitor.
Further inject, the shortwave radio station includes AD sample thief, frequency conversion modulator and power amplifier, AD sample thief, frequency conversion modulator and power amplifier connect gradually the electricity after going to, power amplifier's output impedance end is connected with the input impedance end of shortwave antenna through conjugate matching spare.
Further, a second output port of the radio station is arranged on the radio station, and an output impedance end of the power amplifier is connected with the conjugate matching member through the second output port of the radio station.
Further limiting, the short-wave radio station further comprises an impedance converter, a radio station first output port is further arranged on the short-wave radio station, and the power amplifier is connected with the radio station first output port through the impedance converter; the first output port of the radio station and the second output port of the radio station are arranged in parallel.
Further, the output impedance of the first output port of the radio station is 50 Ω, and the output impedance of the second output port of the radio station is not 50 Ω.
Further, the working frequency of the short-wave radio station and the working frequency of the short-wave antenna are both 3-30 MHz.
The communication method for realizing integration of the radio station and the antenna for short-wave communication based on the radio station and antenna integrated communication device for short-wave communication comprises the following steps:
the real part of the output impedance of the short-wave radio station and the real part of the input impedance of the short-wave antenna synchronously change along with the frequency of the short wave, so that the automatic matching of the real part of the impedance is realized; the imaginary part of the output impedance of the short-wave radio station and the imaginary part of the input impedance of the short-wave antenna realize the conjugate matching of the imaginary part of the impedance through a conjugate matching piece, so that the power output from the short-wave radio station to the short-wave antenna is maximized; the tuning of the output impedance of the short-wave radio station and the input impedance of the short-wave antenna is achieved, and the tuned impedance is the input impedance of the short-wave antenna.
Further defined, the steps further include: the output impedance of the short-wave radio station is adjusted to 50 Ω by an impedance converter, and the output impedance of 50 Ω becomes the input impedance of the constant-impedance short-wave antenna.
Further defined, the step of outputting impedance of the short-wave radio station comprises: signals collected by the AD sampler are subjected to frequency conversion modulation by the frequency conversion modulator and then are output by the power amplifier.
Compared with the prior art, the invention has the beneficial effects that:
1. the radio station and antenna integrated communication device for short-wave communication has the advantages that the real part of the output impedance of the short-wave radio station synchronously changes along with the frequency of short waves, so that the automatic matching of the real part of the impedance is realized; the conjugate matching between the imaginary part of the output impedance of the short-wave radio station and the imaginary part of the input impedance of the short-wave antenna is realized through the conjugate matching part, the conjugate matching enables the power output from the short-wave radio station to the short-wave antenna to be maximum, the short-wave radio station and the short-wave antenna are directly connected, the impedances of the short-wave radio station and the short-wave antenna are automatically matched, the process of impedance matching between the existing short-wave radio station and the existing short-wave antenna is omitted, the introduced conjugate matching part (adjustable inductance or adjustable capacitance) is lossless theoretically, the power consumption is reduced, and the size and the weight of the short-wave radio station are also reduced; or the service life of the short-wave radio station is greatly prolonged under the condition of the same volume and weight.
2. The short-wave radio station is provided with the first radio station output port and the second radio station output port, the short-wave radio station is directly and automatically matched with the short-wave antenna through the second radio station output port, and the matching mode is suitable for small short-wave antennas. The impedance of the output efficacy of the short-wave radio station is uniformly adjusted to 50 omega through the impedance converter through the first radio station output port, and the converted impedance is output to the constant-impedance short-wave antenna through the impedance converter, wherein the constant-impedance short-wave antenna refers to a large short-wave antenna. The communication device can meet the application of the traditional large-scale short wave broadband antenna, and can improve the matching efficiency of the small-scale short wave antenna.
Drawings
FIG. 1 is a schematic diagram of a short wave radio;
FIG. 2 is a schematic diagram of a prior art short wave antenna and radio connection;
FIG. 3 is a schematic diagram of the connection between the short wave antenna and the radio station according to the present invention;
FIG. 4 is a schematic structural diagram of a short wave radio station according to the present invention;
FIG. 5 is a graph of the power efficiency output impedance of the shortwave radio, the input impedance of the whip antenna and the loop antenna;
the radio frequency identification device comprises a 1-AD sampler, a 2-frequency conversion modulator, a 3-power amplifier, a 4-impedance converter, a 5-short wave radio station, a 51-radio station first output port, a 52-radio station second output port, a 6-short wave antenna and a 7-conjugate matching piece.
Detailed Description
The technical solutions of the present invention will be further explained below with reference to the drawings and examples, but the present invention is not limited to the embodiments explained below.
Referring to fig. 1 and 2, in a short-wave radio station 5 in the prior art, an AD sampler 1 performs frequency conversion modulation on a collected signal through a frequency conversion modulator 2, the signal is output to a power amplifier 3 after the frequency conversion modulation is completed, then the signal is output to an impedance converter 4 through the power amplifier 3, the output impedance of the short-wave radio station 5 is tuned to 50 Ω through the impedance converter 4, and the tuned impedance is output to a short-wave antenna 6, so that the short-wave radio station 5 is matched with the short-wave antenna 6, at this time, insertion loss is caused in the process of realizing impedance matching to 50 Ω no matter the short-wave radio station or the short-wave antenna, so that the power output of the short-wave radio station and the efficiency of the short-wave antenna are greatly reduced, and the efficiency of a transmission line transformer or an impedance matcher applicable to the whole short-wave 3-30MHz frequency band is unlikely to be high, and is between 30-70%. Therefore, the short-wave radio station 5 and the short-wave antenna in the existing short-wave communication system are subjected to impedance conversion (matching), so that the service efficiency of the radio station and the service efficiency of the antenna are reduced, the power consumption and the size of the radio station are increased, and the actual communication effect is reduced.
Referring to fig. 5, through practical tests and simulations, in combination with the power efficiency output impedance of the short-wave radio station, the input impedance circular diagram of the whip antenna and the loop antenna, the real impedance parts of the short-wave radio station and the short-wave antenna are consistent, and the power of the short-wave radio station 5 can be maximally output to the short-wave antenna 6 as long as the imaginary impedance parts of the short-wave radio station and the short-wave antenna are subjected to conjugate matching. Based on the principle, the invention provides a radio station and antenna integrated communication device for short-wave communication.
Example 1
Referring to fig. 3, the radio and antenna integrated communication device for short-wave communication of the present embodiment includes a short-wave radio 5, a conjugate matching member 7 and a short-wave antenna 6, wherein an output impedance terminal of the short-wave radio 5 is connected to an input impedance terminal of the short-wave antenna 6 through the conjugate matching member 7; the real part of the output impedance of the short-wave radio station 5 and the real part of the input impedance of the short-wave antenna 6 synchronously change along with the frequency of the short wave, so that the automatic matching of the real part of the impedance is realized; the imaginary part of the output impedance of the short-wave radio station 5 and the imaginary part of the input impedance of the short-wave antenna 6 are matched in a conjugate mode through a conjugate matching piece 7. The output impedance of the short-wave radio station 5 and the input impedance of the short-wave antenna 6 are selected and tuned differently according to different frequencies, so that the maximum advantage of the method is that impedance transformation from the short-wave radio station 5 to 50 ohms of the short-wave antenna 6 is omitted, the efficiency of the radio station and the efficiency of the antenna are greatly improved, and meanwhile, the introduced conjugate matching piece 7 is lossless in theory, simple and feasible, so that the power consumption is reduced, and the volume and the weight of the short-wave radio station are reduced; or the service time of the short-wave radio station is greatly prolonged under the condition of the same volume and weight.
Preferably, the conjugate matching member 7 of the present embodiment is an adjustable inductor or an adjustable capacitor.
Referring to fig. 4, the short-wave radio station 5 of the present embodiment includes an AD sampler 1, a frequency-variable modulator 2, and a power amplifier 3, the AD sampler 1, the frequency-variable modulator 2, and the power amplifier 3 are electrically connected in sequence from front to back, and an output impedance end of the power amplifier 3 is connected with an input impedance end of the short-wave antenna 6 through a conjugate matching member 7. Preferably, the short wave radio station 5 is provided with a second radio station output port 52, and the output impedance terminal of the power amplifier 3 is connected to the conjugate matching member 7 through the second radio station output port 52. Preferably, the short-wave radio set 5 further comprises an impedance converter 4, a first radio set output port 51 is further arranged on the short-wave radio set 5, the power amplifier 3 is connected with the first radio set output port 51 through the impedance converter 4, and the first radio set output port 51 is connected with the constant-impedance short-wave antenna; the first output port 51 of the station is arranged in parallel with the second output port 52 of the station.
The output impedance of the first output port 51 of the radio station is 50 Ω, and the output impedance of the second output port 52 of the radio station is not 50 Ω. The working frequency of the short-wave radio station 5 and the working frequency of the short-wave antenna 6 are both 3-30 MHz.
Example 2
The communication method for integrating the radio station and the antenna for short-wave communication is formed on the basis of the embodiment 1 and comprises the following steps of:
the real part of the output impedance of the short-wave radio station 5 and the real part of the input impedance of the short-wave antenna 6 synchronously change along with the frequency of the short wave, so that the automatic matching of the real part of the impedance is realized; the imaginary part of the output impedance of the short-wave radio station 5 and the imaginary part of the input impedance of the short-wave antenna 6 realize the conjugate matching of the imaginary parts of the impedances through the conjugate matching part 7, so that the power output from the short-wave radio station 5 to the short-wave antenna 6 is maximized; the tuning of the output impedance of the short-wave radio station 5 and the input impedance of the short-wave antenna 6 is achieved, and the tuned impedance is the input impedance of the short-wave antenna 6. The impedance conversion from the short-wave radio station 5 to the short-wave antenna 6 to 50 omega is omitted, and the efficiency of the short-wave radio station and the efficiency of the short-wave antenna are greatly improved. The antenna is more suitable for a small short-wave antenna, and the size and the weight of the small short-wave antenna cannot be increased.
The method also comprises the following steps: the output impedance of the short-wave radio station 5 is adjusted to 50 Ω by the impedance converter 4, and the output impedance of 50 Ω becomes the input impedance of the constant-impedance short-wave antenna. In order to be able to meet the transceiving operation with a large broadband antenna, the short-wave radio station 5 is modified into two output ports, one is a conventional first output port 51 matched to a standard output of 50 Ω, and the other is a second output port 52 not matched to a direct output of 50 Ω. The communication device can meet the application of the traditional large short-wave broadband antenna and can improve the matching efficiency of the small short-wave antenna.
The step of outputting impedance of the short-wave radio station 5 comprises the following steps: the AD sampler 1 collects signals of a short-wave radio station 5, the signals are subjected to frequency conversion modulation through a frequency conversion modulator 2, and then the signals are output through a power amplifier 3.
Claims (10)
1. A radio station and antenna integrated communication device for short-wave communication is characterized by comprising a short-wave radio station (5), a conjugate matching piece (7) and a short-wave antenna (6), wherein an output impedance end of the short-wave radio station (5) is connected with an input impedance end of the short-wave antenna (6) through the conjugate matching piece (7); the real part of the output impedance of the short-wave radio station (5) and the real part of the input impedance of the short-wave antenna (6) synchronously change along with the short-wave frequency, so that the automatic matching of the real part of the impedance is realized; and the imaginary part of the output impedance of the short-wave radio station (5) and the imaginary part of the input impedance of the short-wave antenna (6) realize conjugate matching through a conjugate matching piece (7).
2. A radio and antenna integrated communication device for short-wave communication according to claim 1, wherein said conjugate matching member (7) is an adjustable inductance or an adjustable capacitance.
3. The integrated radio and antenna communication device for short-wave communication according to claim 1, wherein the short-wave radio (5) comprises an AD sampler (1), a frequency-conversion modulator (2) and a power amplifier (3), the AD sampler (1), the frequency-conversion modulator (2) and the power amplifier (3) are electrically connected in sequence from front to back, and an output impedance terminal of the power amplifier (3) is connected with an input impedance terminal of the short-wave antenna (6) through a conjugate matching member (7).
4. A radio and antenna integrated communication device for short wave communication according to claim 3, wherein a second radio output port (52) is provided on the radio (5), and the output impedance terminal of the power amplifier (3) is connected to the conjugate matching member (7) through the second radio output port (52).
5. A radio and antenna integrated communication device for short-wave communication according to claim 4, wherein the short-wave radio station (5) further comprises an impedance converter (4), a first radio station output port (51) is further provided on the short-wave radio station (5), and the power amplifier (3) is connected with the first radio station output port (51) through the impedance converter (4); the first output port (51) of the radio station and the second output port (52) of the radio station are arranged in parallel.
6. The integrated radio and antenna communication device for short-wave communication according to claim 5, wherein the output impedance of the first radio output port (51) is 50 Ω, and the output impedance of the second radio output port (52) is not 50 Ω.
7. A station and antenna integrated communication device for short-wave communication according to claim 1, characterized in that the operating frequencies of the short-wave station (5) and the short-wave antenna (6) are both 3-30 MHz.
8. The radio and antenna integrated communication device for short-wave communication according to claim 6, wherein the radio and antenna integrated communication method for short-wave communication comprises the following steps:
the real part of the output impedance of the short-wave radio station (5) and the real part of the input impedance of the short-wave antenna (6) synchronously change along with the short-wave frequency, so that the automatic matching of the real part of the impedance is realized; the imaginary part of the output impedance of the short-wave radio station (5) and the imaginary part of the input impedance of the short-wave antenna (6) realize the conjugate matching of the imaginary part of the impedance through a conjugate matching part (7), so that the power output from the short-wave radio station (5) to the short-wave antenna (6) is maximized; the tuning of the output impedance of the short-wave radio station (5) and the input impedance of the short-wave antenna (6) is achieved, and the tuned impedance is the input impedance of the short-wave antenna (6).
9. The integrated radio and antenna communication method for short-wave communication according to claim 8, wherein said steps further comprise: the output impedance of the short-wave radio station (5) is adjusted to 50 omega through the impedance converter (4), and the output impedance of 50 omega becomes the input impedance of the constant-impedance short-wave antenna.
10. A radio and antenna integrated communication method for short wave communication according to claim 8 or 9, wherein the step of outputting impedance of the short wave radio (5) comprises: signals of a radio station collected by the AD sampler (1) are subjected to frequency conversion modulation by the frequency conversion modulator (2) and then output by the power amplifier (3).
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| CN202210779912.8A CN115051717B (en) | 2022-07-04 | 2022-07-04 | Radio station and antenna integrated communication device and communication method |
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| CN105553502A (en) * | 2015-12-31 | 2016-05-04 | 陕西烽火电子股份有限公司 | Shortwave radio and transmission protection method thereof |
| CN110085995A (en) * | 2019-04-18 | 2019-08-02 | 西安星网天线技术有限公司 | A kind of tuning shortwave loop antenna and its tuning methods automatically |
| CN111917424A (en) * | 2020-08-05 | 2020-11-10 | 南京熊猫电子股份有限公司 | Low-emission broadband noise no-load short-wave radio station and implementation method thereof |
| CN112615596A (en) * | 2020-12-23 | 2021-04-06 | 陕西烽火电子股份有限公司 | Low-loss tuning matching network |
| CN112713904A (en) * | 2020-12-23 | 2021-04-27 | 陕西烽火电子股份有限公司 | Composite tuning network and antenna tuner |
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2022
- 2022-07-04 CN CN202210779912.8A patent/CN115051717B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105553502A (en) * | 2015-12-31 | 2016-05-04 | 陕西烽火电子股份有限公司 | Shortwave radio and transmission protection method thereof |
| CN110085995A (en) * | 2019-04-18 | 2019-08-02 | 西安星网天线技术有限公司 | A kind of tuning shortwave loop antenna and its tuning methods automatically |
| CN111917424A (en) * | 2020-08-05 | 2020-11-10 | 南京熊猫电子股份有限公司 | Low-emission broadband noise no-load short-wave radio station and implementation method thereof |
| CN112615596A (en) * | 2020-12-23 | 2021-04-06 | 陕西烽火电子股份有限公司 | Low-loss tuning matching network |
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