CN218450116U - Low-cost miniaturized communication-in-moving antenna and phased array system based on same - Google Patents
Low-cost miniaturized communication-in-moving antenna and phased array system based on same Download PDFInfo
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- CN218450116U CN218450116U CN202120412917.8U CN202120412917U CN218450116U CN 218450116 U CN218450116 U CN 218450116U CN 202120412917 U CN202120412917 U CN 202120412917U CN 218450116 U CN218450116 U CN 218450116U
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- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 241000208682 Liquidambar Species 0.000 abstract 1
- 235000006552 Liquidambar styraciflua Nutrition 0.000 abstract 1
- 235000013399 edible fruits Nutrition 0.000 abstract 1
- 238000004891 communication Methods 0.000 description 12
- 230000009286 beneficial effect Effects 0.000 description 6
- 230000008901 benefit Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012512 characterization method Methods 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The utility model discloses a low-cost miniaturized well logical antenna and based on phased array system of this antenna, wherein antenna element and TR chip, its TR chip contains the receipt and launches the branch road, receive the branch road and launch the branch road and provide the gain that the system needed by low noise amplifier and power amplifier respectively, receive simultaneously and launch the branch road and be time system, adopt a single-pole double-throw switch sharing antenna, and utilize above-mentioned antenna and TR chip, it is to empty unit to found the array, radio frequency signal feeds back each sweetgum fruit way respectively after enlargiing through the drive, every passageway is by the regulation and control unit of amplitude phase, TR chip and antenna constitute. And meanwhile, the DAC is adopted to decode the external control signal and control the amplitude and phase regulation unit, so that the beam scanning of the antenna is controlled. The scheme breaks through the key technology evolved from a GaN-based unit circuit chip to an integrated transceiving front end, and realizes the chip, miniaturization, light weight and high reliability of the phased array antenna system, thereby changing the compactness and cost of the whole system.
Description
Technical Field
The utility model relates to a radio technology field, concretely relates to low-cost miniaturized well expert antenna and because phased array system of this antenna in.
Background
Since the 1960 s, satellite communication has become the most competitive communication means in the present day, and particularly in modern war, satellite communication is an important way for military to conduct and manage combat. Satellite communication not only can realize secret communication, but also has large communication coverage area, long communication distance and no increase of communication cost with the increase of the distance. Further, not only voice communication but also transmission of data, images, faxes, and the like are possible. Therefore, satellite communications are widely used in various industries, particularly in places such as the ocean where ordinary communications cannot be achieved.
The vehicle-mounted communication-in-motion system is a vehicle-mounted station capable of carrying out uninterrupted satellite communication in movement, works in a Ka frequency band, uses a synchronous satellite, has the characteristics of multiple information types, large capacity, wide coverage, flexibility and the like, and can carry out transmission of multimedia information such as voice, images, data and the like.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem, the utility model provides a low-cost miniaturized well expert antenna and because phased array system of this antenna realizes through following technical scheme in moving:
a low-cost miniaturized communication-in-motion antenna comprises an antenna unit and a TR chip, wherein the TR chip comprises a receiving branch, a transmitting branch and a single-pole double-throw switch, and the antenna unit is connected to the TR chip through the ballistic double-throw switch.
The beneficial effect of the scheme is that the key technology from evolution of GaN-based unit circuit chip to integrated transceiving front end is broken through, and the chip, miniaturization, light weight and high reliability of the phased array antenna system are realized, so that the compactness and cost of the whole system are changed.
Furthermore, the antenna unit is connected to a moving end of the single-pole double-throw switch, and the receiving branch and the transmitting branch are respectively connected to two fixed ends of the single-pole double-throw switch.
The beneficial effect of the above further scheme is that the time division system of the transmitting branch and the receiving branch is realized by using the single-pole double-throw switch.
Furthermore, the receiving branch is a power amplifier, the input end of the receiving branch is connected with the next-stage system unit, the output end of the receiving branch is connected to one fixed end of the single-pole double-throw switch, a power supply pin VD _ PA of the receiving branch is connected to a power supply pin VC of the single-pole double-throw switch, and a power supply pin VG _ PA of the receiving branch is connected to a power supply pin VC of the ballistic double-throw switch
The further scheme has the advantage that the gain required by the system is provided for the receiving branch by the power amplifier.
Furthermore, the transmitting branch is a low noise amplifier, the input end of the transmitting branch is connected to the other fixed end of the single-pole double-throw switch, the output end of the transmitting branch is connected to the next-stage system unit, a power supply pin VD _ LNA of the transmitting branch is connected to a power supply pin VC of the single-pole double-throw switch, and a power supply pin VG _ LNA of the transmitting branch is connected to a power supply pin VC of the ballistic double-throw switch
The further scheme has the advantage that the gain required by the system is provided for the transmitting branch by the low noise amplifier.
Further, the TR chip adopts a GaN substrate.
The beneficial effect of the above further scheme is that the GaN process line is at top-level in the world both in terms of technical index and process reliability. The process can be used for completing the tape-out verification of two types of chips on the same wafer at one time, so that the tape-out cost of a single chip is reduced.
The phased array system comprises a plurality of paths of the communication-in-motion antennas, a driving chip and a DAC, wherein each path of the communication-in-motion antenna is connected to the driving chip through an amplitude and phase regulation unit, and the amplitude and phase regulation unit is connected with the DAC.
The scheme has the advantages that the array phased array system is constructed, the radio frequency signals are amplified through driving, and then are regulated and controlled by the amplitude and phase regulating and controlling unit of each channel, so that the beam scanning of the antenna is controlled.
Furthermore, the DAC is connected with the control logic unit through a control logic interface.
The beneficial effect of the above further scheme is that the external control signal is decoded by the DAC.
Furthermore, the driving chip is connected with the radio frequency signal unit through a radio frequency signal interface.
The further scheme has the beneficial effects that the external radio frequency signal is driven and amplified through the driving chip, and sufficient input gain is obtained.
Further, the TR chip is connected with a power supply through a control power supply interface.
Further, the TR chip and the driving chip are connected with an attenuation control unit.
The beneficial effect of the above further scheme is that the attenuation unit pair is utilized to meet the level requirement of multiple ports.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
fig. 1 is a schematic diagram of the communication-in-moving antenna structure of the present invention.
Fig. 2 is a schematic diagram of the phased array system of the present invention.
Detailed Description
Hereinafter, the terms "include" or "may include" used in various embodiments of the present invention indicate the existence of the functions, operations or elements of the present invention, and do not limit the addition of one or more functions, operations or elements. Furthermore, as used in various embodiments of the present invention, the terms "comprises," "comprising," "includes," "including," "has," "having" and their derivatives are intended to refer only to the particular feature, number, step, operation, element, component, or combination of the foregoing, and should not be construed as first excluding the existence of, or adding to, one or more other features, numbers, steps, operations, elements, components, or combination of the foregoing.
To make the objects, technical solutions and advantages of the present invention more clearly understood, the following description is given for further details of the present invention with reference to the accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention, and are not intended to limit the present invention.
Example 1
A low-cost miniaturized communication-in-motion antenna comprises an antenna unit and a TR chip, wherein the TR chip comprises a receiving branch, a transmitting branch and a single-pole double-throw switch, and the antenna unit is connected to the TR chip through the ballistic double-throw switch.
As shown in fig. 1, the GaN-based multifunctional T/R chip includes receiving and transmitting branches. The receiving branch and the transmitting branch are provided with gains required by the system by a low noise amplifier and a power amplifier respectively. The receiving and transmitting branches are time division system, and a single-pole double-throw switch is adopted to share the antenna. VD-PA, VG-PA, VD-LNA, VG-LNA and VG-LNA in the power amplifier and the low noise amplifier, and VC in the switch
Is a power supply pin, in which VD _ PA and VD _ LNA are connected togetherA switch VC pin is connected with VG _ PA and VG _ LNA together
In this embodiment, the TR antenna adopts a GaN substrate, and the antenna gain lifting technique on the GaN substrate, and directly radiates the millimeter wave signal generated by the chip to the space, thereby avoiding the loss and uncertainty caused by off-chip connection and packaging, and greatly reducing the volume of the system. For systems with frequencies above Ka it is important to obtain an Effective Isotropic Radiated Power (EIRP) that is as high as possible.
In the scheme, a nonlinear model of the GaN HEMT device is reconstructed in a required working frequency band, and the device model is based on an Angelov empirical basis model and comprises a thermal effect and a trap effect. Compared with other empirical-based models such as EEHEMT, curtic, and TOM, the Angelov model is widely used for characterization of field effect transistor devices due to its advantages in generality, convergence, and the like.
The antenna unit is connected to the movable end of the single-pole double-throw switch, the receiving branch and the transmitting branch are respectively connected to the two immovable ends of the single-pole double-throw switch, and the single-pole double-throw switch is utilized to realize time division of the transmitting branch and the receiving branch.
The receiving branch is a power amplifier, the input end of the receiving branch is connected with the next-stage system unit, and the output end of the receiving branch is connected to one fixed end of the single-pole double-throw switch. The transmitting branch circuit is a low noise amplifier, the input end of the transmitting branch circuit is connected to the other fixed end of the single-pole double-throw switch, and the output end of the transmitting branch circuit is connected to the next-stage system unit. Providing system required gain through low noise amplifier and power amplifier
Example 2
In this embodiment, the TR chip of the antenna in the above scheme is used to construct a 16 × 16 array phased array system, after the radio frequency signal is amplified by driving, the 1-division 16-power divider divides the radio frequency signal into 16 paths, which are fed into 16 channels, respectively, and each channel is composed of an amplitude-phase control unit, a TR chip and an antenna. And meanwhile, the DAC is adopted to decode the external control signal and control the amplitude and phase regulation unit, so that the beam scanning of the antenna is controlled. Specifically, as shown in fig. 2, the phased array system comprises a plurality of paths of the communication-in-motion antennas, a driving chip and a DAC, wherein each path of the communication-in-motion antenna is connected to the driving chip through an amplitude and phase regulation unit, and the amplitude and phase regulation unit is connected with the DAC.
And constructing an array phased array system, regulating and controlling the radio-frequency signals by the amplitude-phase regulation and control unit of each channel after the radio-frequency signals are amplified through driving, and decoding the external control signals through a DAC to realize beam scanning of the control antenna.
Furthermore, the DAC is connected with the control logic unit through a control logic interface.
Furthermore, the driving chip is connected with the radio frequency signal unit through a radio frequency signal interface.
Further, the TR chip is connected with a power supply through a control power supply interface.
Further, the TR chip and the driving chip are connected with an attenuation control unit.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. The low-cost miniaturized communication-in-motion antenna is characterized by comprising an antenna unit and a TR chip, wherein the TR chip comprises a receiving branch, a transmitting branch and a single-pole double-throw switch, and the antenna unit is connected to the TR chip through the single-pole double-throw switch.
2. The low-cost miniaturized communication-in-motion antenna according to claim 1, wherein the antenna unit is connected to a moving terminal of the single-pole double-throw switch, and the receiving branch and the transmitting branch are respectively connected to two fixed terminals of the single-pole double-throw switch.
3. The low-cost miniaturized communication-in-motion antenna according to claim 2, wherein the receiving branch is a power amplifier, an input terminal thereof is connected to the next system unit, an output terminal thereof is connected to one fixed terminal of the single-pole double-throw switch, a power supply pin VD _ PA thereof is connected to a power supply pin VC of the single-pole double-throw switch, and a power supply pin VG _ PA thereof is connected to a power supply pin VC of the single-pole double-throw switch
4. The low-cost miniaturized communication-in-motion antenna according to claim 3, wherein the transmitting branch is a low noise amplifier, an input terminal of the low noise amplifier is connected to the other fixed terminal of the single-pole double-throw switch, an output terminal of the low noise amplifier is connected to the next system unit, a power supply pin VD _ LNA of the low noise amplifier is connected to a power supply pin VC of the single-pole double-throw switch, and a power supply pin VG _ LNA of the low noise amplifier is connected to a power supply pin VC of the single-pole double-throw switch
5. The low-cost miniaturized communication-in-motion antenna according to any one of claims 1 to 4, wherein the TR chip is made of a GaN substrate.
6. A phased array system based on the communication-in-motion antenna of any one of claims 1 to 5, characterized in that the phased array system comprises a plurality of paths of the communication-in-motion antenna, a driving chip and a DAC, wherein each path of the communication-in-motion antenna is connected to the driving chip through an amplitude and phase regulation unit, and the amplitude and phase regulation unit is connected with the DAC.
7. The phased array system claimed in claim 6, wherein the DAC is connected to the control logic unit via a control logic interface.
8. The phased array system claimed in claim 6, wherein the driver chip is connected to the radio frequency signal unit via a radio frequency signal interface.
9. The phased array system of claim 6, wherein the TR chip is connected to a power supply through a control power interface.
10. The phased array system of claim 6, wherein the TR chip and the driver chip are connected to an attenuation control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120412917.8U CN218450116U (en) | 2021-02-25 | 2021-02-25 | Low-cost miniaturized communication-in-moving antenna and phased array system based on same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120412917.8U CN218450116U (en) | 2021-02-25 | 2021-02-25 | Low-cost miniaturized communication-in-moving antenna and phased array system based on same |
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| Publication Number | Publication Date |
|---|---|
| CN218450116U true CN218450116U (en) | 2023-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120412917.8U Active CN218450116U (en) | 2021-02-25 | 2021-02-25 | Low-cost miniaturized communication-in-moving antenna and phased array system based on same |
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| Country | Link |
|---|---|
| CN (1) | CN218450116U (en) |
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2021
- 2021-02-25 CN CN202120412917.8U patent/CN218450116U/en active Active
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