CN212434830U - Antenna structure and communication terminal - Google Patents
Antenna structure and communication terminal Download PDFInfo
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- CN212434830U CN212434830U CN202020998290.4U CN202020998290U CN212434830U CN 212434830 U CN212434830 U CN 212434830U CN 202020998290 U CN202020998290 U CN 202020998290U CN 212434830 U CN212434830 U CN 212434830U
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Abstract
The utility model is suitable for a communication technology field provides an antenna structure and a communication terminal, the antenna structure includes transmitting circuit and receiving circuit; the transmitting circuit comprises a driving amplifier, a first filter, a power amplifier and a transmitting antenna, wherein the first filter is connected with the driving amplifier in a unidirectional mode; the receiving circuit comprises a receiving antenna, a second filter, a low-noise amplifier and a third filter, wherein the second filter is connected with the receiving antenna in a one-way mode, the low-noise amplifier is connected with the second filter in a one-way mode, and the third filter is connected with the low-noise amplifier in a one-way mode. The antenna structure can realize signal receiving and transmitting processing.
Description
Technical Field
The utility model belongs to the technical field of communication, especially, relate to an antenna structure and a communication terminal.
Background
In a power distribution network system, communication between a Feeder Terminal Unit (FTU) and a distribution network automation master station is mainly realized by mobile communication. In the area covered by the mobile network, the FTU and the power distribution network automation master station can effectively communicate through the mobile network, and transmit power distribution network data and control instructions based on a mobile communication channel. However, because the distribution network is widely distributed, in some areas without mobile network coverage, the communication between the FTU and the distribution network automation master station is affected, so that operations such as power grid maintenance and power grid scheduling must be completed manually, which not only reduces efficiency, but also increases safety risk of operations.
To this end, communication between the FTU and the distribution network automation master station may be established through a satellite radio positioning system (RDSS) communication terminal. Because the communication channel of the RDSS is a satellite wireless communication channel, the air-to-ground communication mode is not influenced by terrain and topography, and the problem that effective data transmission cannot be carried out between the FTU and the power distribution network automation master station in an area without mobile network coverage can be solved. However, it is an urgent problem to be solved by those skilled in the art how to design an antenna structure of an RDSS communication terminal to efficiently and accurately transmit and receive data signals.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the present invention provides an antenna structure and a communication terminal, so as to implement the transceiving of RDSS signals.
A first aspect of an embodiment of the present invention provides an antenna structure, including a transmitting circuit and a receiving circuit; the transmitting circuit comprises a driving amplifier, a first filter, a power amplifier and a transmitting antenna, wherein the first filter is connected with the driving amplifier in a unidirectional mode; the receiving circuit comprises a receiving antenna, a second filter, a low-noise amplifier and a third filter, wherein the second filter is connected with the receiving antenna in a one-way mode, the low-noise amplifier is connected with the second filter in a one-way mode, and the third filter is connected with the low-noise amplifier in a one-way mode.
Optionally, the driver amplifier has a corresponding first data interface, and the driver amplifier is connected to the signal processing unit through the first data interface, and the driver amplifier is configured to receive the first signal sent by the signal processing unit.
Optionally, the transmitting circuit further includes a first power isolator, the first power isolator is respectively connected to the power amplifier and the transmitting antenna in a unidirectional manner, and the first power isolator is configured to perform power isolation on the first signal processed by the power amplifier and feed the isolated first signal to the transmitting antenna.
Optionally, the transmitting antenna is a passive transmitting antenna.
Optionally, the receiving antenna is a passive receiving antenna, and the passive receiving antenna is configured to receive the second signal.
Optionally, the third filter has a corresponding second data interface, and the third filter is connected to the signal processing unit through the second data interface, and the third filter is configured to send the filtered second signal to the signal processing unit.
Optionally, the receiving circuit further includes a second power isolator, the second power isolator is respectively connected to the receiving antenna and the second filter in a unidirectional manner, and the second power isolator is configured to perform power isolation on a second signal received by the receiving antenna and send the isolated second signal to the second filter for processing.
A second aspect of the embodiments provides a communication terminal, including an antenna structure, and with the signal processing unit that the antenna structure electricity is connected, the antenna structure is any one of above-mentioned first aspect antenna structure.
Compared with the prior art, the embodiment of the utility model provides an including following advantage:
the embodiment of the utility model provides a, through the antenna structure who designs including transmitting circuit and receiving circuit, when carrying out signal transmission, through the processing of drive amplifier, first wave filter and power amplifier in the transmitting circuit, can feed into transmitting antenna with the first signal after handling to with first signal transmission to distribution network automation main website; on the other hand, a second signal sent by the distribution network automation main station is received through the receiving antenna, and can be sent to the signal processing unit through the processing of a second filter, a low-noise amplifier and a third filter in the receiving circuit, so that the signal receiving is completed, and the effective communication between the distribution network automation main station and the distribution network automation feeder terminal is realized.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the embodiments or the description of the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a schematic diagram of an antenna structure according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a communication terminal according to an embodiment of the present invention.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. However, it will be apparent to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
The technical solution of the present invention will be described below with reference to specific examples.
Referring to fig. 1, a schematic diagram of an antenna structure of an embodiment of the present invention is shown, which may include a transmit circuit and a receive circuit; wherein the transmitting circuit and the receiving circuit may be used for transmission or reception of signals, respectively.
In the embodiment of the present invention, the first signal transmitted by the transmitting circuit and the second signal received by the receiving circuit may be RDSS signals.
As shown in fig. 1, the transmission circuit may include a driver amplifier 101, a first filter 102 unidirectionally connected to the driver amplifier 101, a power amplifier 103 unidirectionally connected to the first filter 102, and a transmission antenna 105 unidirectionally connected to the power amplifier 103.
The embodiment of the utility model provides an in, driver amplifier 101 can have corresponding first data interface, through first data interface, can be connected to driver amplifier to signal processing unit for receive the first signal that signal processing unit sent, above-mentioned first signal can be the RDSS signal that obtains after handling the electric power data that FTU gathered.
The driver stage amplifier is a power amplifier which amplifies the input signal to the input power required by the final stage amplifier. In general, in a front-stage circuit of a transmitter, the power of a radio frequency signal generated by a modulation oscillation circuit is small, and the radio frequency signal needs to be subjected to a series of amplification to obtain enough radio frequency power before being fed to an antenna for radiation. Therefore, in the transmitting circuit of the embodiment of the present invention, a driving amplifier 101 may be configured.
In the embodiment of the present invention, the transmitting circuit may further include a first power isolator 104, and the first power isolator 104 may be respectively connected to the power amplifier 103 and the transmitting antenna 105 in a single direction, so as to perform power isolation on the first signal processed by the power amplifier 103, and feed the isolated first signal to the transmitting antenna 105.
The power isolator is a device which adopts a linear optical coupling isolation principle to convert and output an input signal, so that input, output and a working power supply are isolated from each other, and mutual noninterference among all circuits is guaranteed.
In an embodiment of the present invention, the transmitting antenna 105 may be a passive transmitting antenna. For the received first signal, the transmit antenna 105 may transmit it to the distribution network automation master station over the RDSS communication link.
As shown in fig. 1, the receiving circuit may include a receiving antenna 201, a second filter 203 unidirectionally connected to the receiving antenna 201, a low noise amplifier 204 unidirectionally connected to the second filter 203, and a third filter 205 unidirectionally connected to the low noise amplifier 204.
In the embodiment of the present invention, the receiving antenna 201 may be a passive receiving antenna for receiving the second signal. The second signal may be an RDSS signal transmitted by the distribution network automation master station via an RDSS communication link.
Similar to the transmitting circuit, the receiving circuit may include a second power isolator 202 unidirectionally connected to the receiving antenna 201 and the second filter 203, respectively, for performing power isolation on the second signal received by the receiving antenna 201 and sending the isolated second signal to the second filter 203 for processing, so as to prevent interference between input and output of the signal.
In the embodiment of the present invention, the third filter 205 may have a corresponding second data interface, and the third filter 205 may be connected to the signal processing unit through the second data interface, so as to transmit the filtered second signal to the signal processing unit. The signal processing unit can send the second signal to the FTU after correspondingly processing the second signal so as to instruct the FTU to execute the operation corresponding to the second signal, thereby realizing the control of the power distribution network automation master station to the FTU.
In the embodiment of the present invention, by designing the antenna structure including the transmitting circuit and the receiving circuit, when transmitting signals, the processed first signals can be fed into the transmitting antenna through the processing of the driving amplifier, the first filter and the power amplifier in the transmitting circuit, so as to transmit the first signals to the distribution network automation main station; on the other hand, a second signal sent by the distribution network automation main station is received through the receiving antenna, and can be sent to the signal processing unit through the processing of a second filter, a low-noise amplifier and a third filter in the receiving circuit, so that the signal receiving is completed, and the effective communication between the distribution network automation main station and the distribution network automation feeder terminal is realized.
Referring to fig. 2, a schematic diagram of a communication terminal according to an embodiment of the present invention is shown, the communication terminal may include an antenna structure 1, and a signal processing unit 2 electrically connected to the antenna structure 1, where the antenna structure 1 may be the antenna structure in fig. 1. For a detailed description of the antenna structure 1, reference may be made to the description of the foregoing embodiments, which are not repeated herein.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and are not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (8)
1. An antenna structure comprising a transmitting circuit and a receiving circuit; the transmitting circuit comprises a driving amplifier, a first filter, a power amplifier and a transmitting antenna, wherein the first filter is connected with the driving amplifier in a unidirectional mode; the receiving circuit comprises a receiving antenna, a second filter, a low-noise amplifier and a third filter, wherein the second filter is connected with the receiving antenna in a one-way mode, the low-noise amplifier is connected with the second filter in a one-way mode, and the third filter is connected with the low-noise amplifier in a one-way mode.
2. The antenna structure according to claim 1, characterized in that the driver amplifiers have respective first data interfaces, the driver amplifiers being connected to a signal processing unit via the first data interfaces, the driver amplifiers being configured to receive the first signals transmitted by the signal processing unit.
3. The antenna structure according to claim 1 or 2, wherein the transmitting circuit further comprises a first power isolator, the first power isolator is unidirectionally connected with the power amplifier and the transmitting antenna, respectively, and is configured to perform power isolation on the first signal processed by the power amplifier and feed the isolated first signal to the transmitting antenna.
4. An antenna structure according to claim 3, characterized in that the transmitting antenna is a passive transmitting antenna.
5. The antenna structure according to claim 4, characterized in that the receiving antenna is a passive receiving antenna for receiving the second signal.
6. Antenna structure according to claim 1 or 2 or 4 or 5, characterized in that said third filter has a respective second data interface, said third filter being connected to a signal processing unit through said second data interface, said third filter being adapted to send a filtered second signal to said signal processing unit.
7. The antenna structure of claim 6, wherein the receiving circuit further comprises a second power isolator, the second power isolator is unidirectionally connected to the receiving antenna and the second filter, respectively, and the second power isolator is configured to perform power isolation on the second signal received by the receiving antenna and send the isolated second signal to the second filter for processing.
8. A communication terminal, characterized in that it comprises an antenna structure and a signal processing unit electrically connected to the antenna structure, the antenna structure being an antenna structure according to any of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020998290.4U CN212434830U (en) | 2020-06-03 | 2020-06-03 | Antenna structure and communication terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020998290.4U CN212434830U (en) | 2020-06-03 | 2020-06-03 | Antenna structure and communication terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212434830U true CN212434830U (en) | 2021-01-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020998290.4U Active CN212434830U (en) | 2020-06-03 | 2020-06-03 | Antenna structure and communication terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212434830U (en) |
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2020
- 2020-06-03 CN CN202020998290.4U patent/CN212434830U/en active Active
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