CN213403009U - Ultra-wideband transmitting-receiving assembly - Google Patents
Ultra-wideband transmitting-receiving assembly Download PDFInfo
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- CN213403009U CN213403009U CN202022781159.5U CN202022781159U CN213403009U CN 213403009 U CN213403009 U CN 213403009U CN 202022781159 U CN202022781159 U CN 202022781159U CN 213403009 U CN213403009 U CN 213403009U
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Abstract
The utility model provides an ultra-wideband receiving and transmitting assembly, which comprises a receiving and transmitting assembly shell, a plurality of signal transmission interfaces, a receiving channel assembly, a transmitting channel assembly and a reference crystal oscillator, wherein the reference crystal oscillator is respectively connected with a receiving local oscillation source and a transmitting local oscillation source, the receiving local oscillation source is connected with a first mixer and a second mixer in the receiving channel assembly, a local oscillation signal is provided for the receiving channel assembly, the transmitting local oscillation source is connected with a third mixer and a fourth mixer of the transmitting channel assembly, a local oscillation signal is provided for the transmitting channel assembly, a radio frequency signal input interface and a medium frequency signal output interface are respectively arranged at two ends of the receiving channel assembly, the medium frequency signal input interface and the radio frequency signal output interface are respectively arranged at two ends of the transmitting channel assembly, the receiving channel assembly and the transmitting channel assembly also respectively have a preset filter group, so that the receiving channel ensures excellent anti-interference capability, the transmitting channel has pure transmitting spectrum capability; the utility model relates to a rationally, simple structure.
Description
Technical Field
The utility model relates to a radio frequency transmission technical field particularly, relates to an ultra wide band receiving and dispatching subassembly.
Background
With the development of a new generation of wireless broadband communication technology and the development of an industrialization process, handheld multimedia terminals centering on PDAs, multimedia mobile phones, tablet computers and the like are widely applied, will become a unified platform for popularization and application of information technology, can support various rich and varied information applications, and are rapidly developed in various industries such as industry, agriculture, medical treatment, education, family and personal communication. High-speed data transmission is one of the key technologies, and when information terminals exchange data, a sufficiently high data rate is inevitably required as a guarantee in order to be able to effectively transmit high-quality images and even video data. However, the increase in data rate not only poses a challenge to the performance of the entire receiver, such as reception sensitivity or noise, but also examines the power consumption of the amplifier and filter of the analog baseband. In addition, the increase in data rate also affects the system spectrum planning.
One of the mainstream transceiver systems currently implementing a new generation of wireless broadband communication technology internationally is the ultra-wideband short pulse system. For Ultra-wideband (UWB) systems, the federal communications commission (federal copupuqicatio qs coppisisoq, FCC) has given explicit regulations as early as 4 months in 2002. The frequency range of the ultra-wideband system is 3.1-10.6 GHz, the frequency spectrum of the ultra-wideband system is at-10 dB, and the relative bandwidth (namely the ratio of the absolute bandwidth of the signal to the central frequency) of the signal is more than 20%, or the absolute bandwidth of the signal is more than 500 PHz. It can be seen that the bandwidth of ultra-wideband is significantly larger than that of all current communication technologies.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an ultra wide band receiving and dispatching subassembly, its receiving channel and the built-in independent local oscillator of transmitting channel can realize full duplex mode, and this vibration source possesses characteristics such as low noise, thin step-by-step, frequency agility, and the receipt all is provided with preselection filter group with transmitting channel, can guarantee that receiving channel interference killing feature and transmitting channel have pure transmission spectrum ability.
The embodiment of the utility model discloses a realize through following technical scheme:
the utility model provides an ultra wide band receiving and dispatching subassembly, includes receiving and dispatching subassembly shell, a plurality of signal transmission interface, receiving channel subassembly, transmission channel subassembly and benchmark crystal oscillator, the benchmark crystal oscillator is connected with respectively and receives the source of local vibration and the source of local vibration of transmission, receive the source of local vibration with receiving channel subassembly connects, the source of local vibration of transmission with the transmission channel subassembly is connected, receiving channel subassembly is including the first preselection filter subassembly, first amplifier, first mixer, first filter, second amplifier, second mixer, second filter and the third amplifier that connects gradually, it connects respectively to receive the source of local vibration first mixer and second mixer.
Preferably, the transmission channel component includes a fourth amplifier, a third filter, a third mixer, a fifth amplifier, a fourth filter, a sixth amplifier and a second preselection filter component, which are connected in sequence, and the transmission local oscillation source is connected to the third mixer and the fourth mixer respectively.
Preferably, the ultra-wideband transceiver module further comprises a power supply adjusting system, and the power supply adjusting system is respectively connected with the receiving channel module, the transmitting channel module and the reference crystal oscillator.
Preferably, the signal transmission interface includes a radio frequency signal input interface, a radio frequency signal output interface, an intermediate frequency signal input interface and an intermediate frequency signal output interface, an output end of the radio frequency signal input interface is connected to an input end of the first preselection filter bank, an input end of the radio frequency signal output interface is connected to an output end of the second preselection filter bank, an input end of the intermediate frequency signal output interface is connected to an output end of the third amplifier, and an output end of the intermediate frequency signal input interface is connected to an input end of the third filter.
Preferably, the ultra-wideband transceiver module further comprises a power input interface, and the power input interface is connected with the power adjustment system.
Preferably, the ultra-wideband transceiver component further includes a clock output interface and a reference input interface, and the reference crystal oscillator is connected to the clock output interface and the reference input interface, respectively.
Preferably, the first amplifier, the fifth amplifier and the sixth amplifier are radio frequency amplifiers.
Preferably, the second amplifier, the third amplifier and the fourth amplifier are intermediate frequency amplifiers.
Preferably, the first preselection filter component includes a first multiplexer switch, a multiplexer filter and a second multiplexer switch, which are connected in sequence, an input end of the first multiplexer switch is connected to the radio frequency signal input interface, an output end of the second multiplexer switch is connected to an input end of the first amplifier, and the second preselection filter component has the same structure as the first preselection filter component.
Preferably, the number of the multipath filters is the same as the number of the first multipath selecting switch and the second multipath selecting switch.
The utility model discloses technical scheme has following advantage and beneficial effect at least:
1. the utility model designs an independent receiving local vibration source and an independent transmitting local vibration source, which can realize the full duplex working mode, and the independent receiving local vibration source and the independent transmitting local vibration source have the characteristics of low phase noise, fine stepping, frequency agility and the like;
2. the utility model is provided with the first preselection filter component in the receiving channel component, which ensures that the receiving channel has excellent anti-interference ability, and the second preselection filter component is arranged in the transmitting channel component, which ensures that the transmitting channel has pure transmitting spectrum ability;
the utility model relates to a rationally, simple structure, the practicality is strong.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of an ultra-wideband transceiver module according to embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of a receiving channel assembly and a transmitting channel assembly provided in embodiment 1 of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which is usually placed when the product of this application is used, the description is only for convenience of description and simplification, but the indication or suggestion that the device or element to be referred must have a specific orientation, be constructed in a specific orientation and be operated is not to be construed as limiting the present invention.
In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
As shown in fig. 1-2, an ultra-wideband transceiver module includes a transceiver module housing, a plurality of signal transmission interfaces, a receiving channel module, a transmitting channel module, and a reference crystal oscillator, where the reference crystal oscillator is connected to a receiving local oscillator source and a transmitting local oscillator source, the receiving local oscillator source is connected to the receiving channel module, the transmitting local oscillator source is connected to the transmitting channel module, the receiving channel module includes a first preselection filter module, a first amplifier, a first mixer, a first filter, a second amplifier, a second mixer, a second filter, and a third amplifier, and the receiving local oscillator source is connected to the first mixer and the second mixer. The reference crystal oscillator outputs crystal oscillator frequency to the receiving local oscillator source and the transmitting local oscillator source, the receiving local oscillator source and the transmitting local oscillator source receive the crystal oscillator frequency to generate local oscillator signals with the crystal oscillator frequency and provide the local oscillator signals for the receiving channel assembly and the transmitting channel assembly respectively. The local oscillation signals respectively enter the frequency mixers of the receiving channel assembly and the transmitting channel assembly to participate in the frequency mixing work of the frequency mixers. The utility model discloses set up respectively and receive this vibration source and transmission this vibration source, make them independently provide local oscillator signal, can realize full duplex mode, and local oscillator signal possesses characteristics such as low noise, thin step-by-step, frequency agility to make the receiving channel subassembly and take place the passageway subassembly and have low phase noise characteristics at the in-process of work.
The receiving channel is responsible for processing a received radio frequency signal into an intermediate frequency signal for output, the radio frequency signal passes through a first preselection filter bank to obtain a relatively pure radio frequency signal, the radio frequency signal is amplified by a first amplifier, the amplified radio frequency signal is input to a first mixer, the first mixer receives a first local oscillation signal LO1 transmitted by a receiving local oscillation source, the first local oscillation signal LO1 and the radio frequency signal are subjected to first frequency mixing to obtain an intermediate frequency signal, the intermediate frequency signal sequentially enters a first filter and a second amplifier for filtering and amplification, then the intermediate frequency signal is subjected to second frequency mixing by a second mixer, the second mixer receives a second local oscillation signal LO2 from the receiving local oscillation source and the intermediate frequency signal transmitted by a second amplifier, the intermediate frequency signal and the second local oscillation signal LO2 are subjected to frequency mixing by the second mixer, and then the intermediate frequency signal is filtered and amplified by a second filter and a third amplifier, and obtaining an intermediate frequency output signal.
The transmitting channel component comprises a fourth amplifier, a third filter, a third mixer, a fifth amplifier, a fourth filter, a sixth amplifier and a second preselection filter component which are connected in sequence, and the transmitting local vibration source is respectively connected with the third mixer and the fourth mixer. The transmitting channel is mainly responsible for processing an intermediate frequency signal into a radio frequency signal and then outputting the radio frequency signal, the intermediate frequency signal is subjected to intermediate frequency amplification through a fourth amplifier and then is filtered through a third filter, the filtered intermediate frequency signal and a third local oscillation signal LO3 transmitted by a transmitting local oscillation source are subjected to first frequency mixing through a third mixer, the amplified and filtered signal and a fourth local oscillation signal LO4 are subjected to second frequency mixing under the action of the fourth mixer after the first frequency mixing is finished, the radio frequency signal is obtained, the radio frequency signal is amplified through a sixth amplifier, a pure radio frequency signal is obtained through a second preselection filter group, and the pure radio frequency signal is obtained and then transmitted.
The ultra-wideband transceiver component also comprises a power supply adjusting system, and the power supply adjusting system is respectively connected with the receiving channel component, the transmitting channel component and the reference crystal oscillator. The power supply adjusting system respectively supplies power to the receiving channel assembly, the transmitting channel assembly and the reference crystal oscillator.
The signal transmission interface comprises a radio-frequency signal input interface, a radio-frequency signal output interface, an intermediate-frequency signal input interface and an intermediate-frequency signal output interface, the output end of the radio-frequency signal input interface is connected with the input end of the first preselection filter group, the input end of the radio-frequency signal output interface is connected with the output end of the second preselection filter component, the input end of the intermediate-frequency signal output interface is connected with the output end of the third amplifier, and the output end of the intermediate-frequency signal input interface is connected with the input end of the.
The ultra-wideband transceiver component also comprises a power input interface, and the power input interface is connected with the power adjusting system. The power supply adjusting system is charged through the power supply input interface.
The ultra-wideband transceiving component further comprises a clock output interface and a reference input interface, and the reference crystal oscillator is respectively connected with the clock output interface and the reference input interface. The reference input interface inputs rated crystal oscillator frequency to the reference crystal oscillator, and the clock output interface mainly transmits the clock frequency of the reference crystal oscillator to the outside.
The first amplifier, the fifth amplifier and the sixth amplifier are radio frequency amplifiers.
The second amplifier, the third amplifier and the fourth amplifier are intermediate frequency amplifiers.
The first preselection filter component comprises a first multi-path selection switch, a multi-path filter and a second multi-path selection switch which are sequentially connected, the input end of the first multi-path selection switch is connected with the radio frequency signal input interface, the output end of the second multi-path selection switch is connected with the input end of the first amplifier, and the second preselection filter component and the first preselection filter component are identical in structure. The first preselection filter component can ensure that the receiving channel has excellent anti-interference capability, and the second preselection filter component can ensure that the transmitting channel has pure transmitting spectrum capability.
The number of the multipath filters is the same as the number of the first multipath selection switches and the second multipath selection switches.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides an ultra wide band transceiver module, its characterized in that, includes transceiver module shell, a plurality of signal transmission interface, receiving channel subassembly, transmission channel subassembly and benchmark crystal oscillator, the benchmark crystal oscillator is connected with respectively and receives the local source of vibration and the local source of vibration of transmission, receive the local source of vibration with receiving channel subassembly connects, the local source of vibration of transmission with transmission channel subassembly connects, receiving channel subassembly is including the first preselection filter subassembly, first amplifier, first mixer, first filter, second amplifier, second mixer, second filter and the third amplifier that connects gradually, it connects respectively to receive the local source of vibration first mixer and second mixer.
2. The uwb transceiver component of claim 1, wherein the transmit channel component comprises a fourth amplifier, a third filter, a third mixer, a fifth amplifier, a fourth filter, a sixth amplifier, and a second pre-selection filter component connected in sequence, and the transmit local oscillator is connected to the third mixer and the fourth mixer, respectively.
3. The ultra-wideband transceiver module of claim 2, further comprising a power regulation system, the power regulation system being connected to the receive channel module, the transmit channel module, and the reference crystal oscillator, respectively.
4. The uwb transceiver component of claim 3 wherein the signal transmission interface comprises a radio frequency signal input interface, a radio frequency signal output interface, an intermediate frequency signal input interface, and an intermediate frequency signal output interface, wherein an output of the radio frequency signal input interface is coupled to an input of the first pre-selection filter bank, an input of the radio frequency signal output interface is coupled to an output of the second pre-selection filter component, an input of the intermediate frequency signal output interface is coupled to an output of the third amplifier, and an output of the intermediate frequency signal input interface is coupled to an input of the third filter.
5. The ultra-wideband transceiver module of claim 3, further comprising a power input interface, wherein the power input interface is coupled to the power regulation system.
6. The uwb transceiver component of claim 1 further comprising a clock output interface and a reference input interface, wherein the reference crystal is connected to the clock output interface and the reference input interface, respectively.
7. The ultra-wideband transceiver component of claim 2, wherein the first, fifth, and sixth amplifiers are radio frequency amplifiers.
8. The ultra-wideband transceiver component of claim 2, wherein the second, third and fourth amplifiers are intermediate frequency amplifiers.
9. The ultra-wideband transceiver component of claim 4, wherein the first preselection filter component comprises a first multiplexer switch, a multiplexer filter, and a second multiplexer switch connected in sequence, an input of the first multiplexer switch is connected to the rf signal input interface, an output of the second multiplexer switch is connected to the input of the first amplifier, and the second preselection filter component has the same structure as the first preselection filter component.
10. The ultra-wideband transceiver component of claim 9, wherein the number of multipath filters is the same as the number of paths of the first and second multipath switches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022781159.5U CN213403009U (en) | 2020-11-25 | 2020-11-25 | Ultra-wideband transmitting-receiving assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022781159.5U CN213403009U (en) | 2020-11-25 | 2020-11-25 | Ultra-wideband transmitting-receiving assembly |
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| Publication Number | Publication Date |
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| CN213403009U true CN213403009U (en) | 2021-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022781159.5U Active CN213403009U (en) | 2020-11-25 | 2020-11-25 | Ultra-wideband transmitting-receiving assembly |
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| CN (1) | CN213403009U (en) |
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