WO2016052786A1 - Émetteur et récepteur de fréquence sans fil prenant en charge une bande multi-fréquence - Google Patents

Émetteur et récepteur de fréquence sans fil prenant en charge une bande multi-fréquence Download PDF

Info

Publication number
WO2016052786A1
WO2016052786A1 PCT/KR2014/009328 KR2014009328W WO2016052786A1 WO 2016052786 A1 WO2016052786 A1 WO 2016052786A1 KR 2014009328 W KR2014009328 W KR 2014009328W WO 2016052786 A1 WO2016052786 A1 WO 2016052786A1
Authority
WO
WIPO (PCT)
Prior art keywords
frequency
signal
radio frequency
transmitter
receiver
Prior art date
Application number
PCT/KR2014/009328
Other languages
English (en)
Korean (ko)
Inventor
강상효
황순택
전용훈
이호연
Original Assignee
주식회사 케이엠더블유
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 케이엠더블유 filed Critical 주식회사 케이엠더블유
Priority to PCT/KR2014/009328 priority Critical patent/WO2016052786A1/fr
Publication of WO2016052786A1 publication Critical patent/WO2016052786A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks

Definitions

  • the present invention relates to radio frequency transmitters and receivers, and more particularly to radio frequency transmitters and receivers that support multiple frequency bands.
  • each communication service method uses multiple frequency bands.
  • CDMA Code Division Multiple Access
  • GSM Global System for Mobile Communication
  • WCDMA Wide band code division multiple access
  • One embodiment of the present invention provides a radio frequency transmitter and a receiver capable of transmitting and receiving multiple frequency bands at the same time.
  • an embodiment of the present invention provides a radio frequency transmitter and receiver that supports multiple frequency bands that can reduce the manufacturing cost.
  • a radio frequency transmitter supporting multiple frequency bands includes: a digital analog signal converter for synthesizing a plurality of intermediate frequency signals to generate a synthesized intermediate frequency signal and outputting the signal through a single path; A mixer configured to receive the synthesized intermediate frequency signal through the single path and generate a synthesized radio frequency signal; And a transmitter configured to receive the synthesized radio frequency signal through the single path, filter each multi-frequency, and output the plurality of radio frequency signals. It may include.
  • the transmitter may include a plurality of transmission band pass filters of a multi band pass filter method.
  • the transmitter may include a plurality of local oscillators for generating LO frequency signals of different frequencies and supplying them to the mixer through a single path.
  • the transmitter may include a frequency combiner for synthesizing the LO frequency signals to generate a synthesized LO frequency signal and outputting the signal through the single path.
  • a frequency combiner for synthesizing the LO frequency signals to generate a synthesized LO frequency signal and outputting the signal through the single path.
  • the transmitter may adjust the separation distance between the plurality of radio frequency signals with the LO frequency signals.
  • a radio frequency receiver supporting multiple frequency bands includes: a receiver receiving a plurality of radio frequency signals, filtering for each of multiple frequencies, generating a synthesized radio frequency signal, and outputting the same through a single path; A mixer configured to receive the synthesized radio frequency signal through the single path and generate a synthesized intermediate frequency signal; And an analog-digital signal converter configured to receive the synthesized intermediate frequency signal through the single path to generate and output a plurality of intermediate frequency signals.
  • the receiver may include a plurality of reception band selection filters of a multiband pass filter method.
  • the receiver may include a plurality of local oscillators for generating LO frequency signals of different frequencies and supplying them to the mixer through a single path.
  • the receiver may include a frequency combiner that synthesizes the LO frequency signals to generate a synthesized LO frequency signal and outputs the signal through the single path.
  • a frequency combiner that synthesizes the LO frequency signals to generate a synthesized LO frequency signal and outputs the signal through the single path.
  • the receiver may adjust the separation distance between the plurality of intermediate frequency signals with the LO frequency signals.
  • a transmitter and a receiver supporting multiple frequency bands are mutually converted between a plurality of intermediate frequency signals and a synthesized intermediate frequency signal generated by combining the plurality of intermediate frequency signals into one signal.
  • a digital analog signal conversion unit capable of converting between the synthesized intermediate frequency signal and the synthesized radio frequency signal;
  • a wireless processor configured to perform mutual conversion between the synthesized radio frequency signal and a plurality of radio frequency signals.
  • the synthesized intermediate frequency signal and the synthesized radio frequency signal may be transmitted through a single path.
  • the wireless processing unit a transmitter including a plurality of transmission band pass filters of the multi-band pass filter method; And a receiver including a plurality of reception band selection filters of the multiband pass filter method.
  • said radio frequency transmitter and receiver may comprise a plurality of local oscillators for generating LO frequency signals of different frequencies and supplying them to said mixer via a single path.
  • the radio frequency transmitter and receiver may include a frequency combiner for synthesizing the LO frequency signals to generate a synthesized LO frequency signal and output the signal through the single path.
  • a frequency combiner for synthesizing the LO frequency signals to generate a synthesized LO frequency signal and output the signal through the single path.
  • the radio frequency transmitter and the receiver may adjust the separation distance between the plurality of intermediate frequency signals or the separation distance between the plurality of intermediate frequency signals with the LO frequency signals.
  • the radio frequency transmitter and receiver supporting the multi frequency band may transmit or receive the multi frequency band signals simultaneously through a simple signal transmission path.
  • a radio frequency transmitter and a receiver supporting multiple frequency bands can reduce manufacturing costs due to a simple signal transmission path.
  • FIG. 1 is an exemplary block diagram of a radio frequency transmitter and receiver supporting a typical multiple frequency band.
  • FIG. 2 is a block diagram of a radio frequency transmitter and receiver supporting multiple frequency bands according to an embodiment of the present invention.
  • FIG. 3 is an exemplary block diagram of a radio frequency transmitter supporting a typical multiple frequency band.
  • FIG. 4 is a block diagram of a radio frequency transmitter supporting multiple frequency bands according to an embodiment of the present invention.
  • FIG. 5 is a block diagram of a radio frequency transmitter supporting multiple frequency bands according to another embodiment of the present invention.
  • FIG. 6 is an exemplary block diagram of a radio frequency receiver supporting a typical multiple frequency band.
  • FIG. 7 is a block diagram of a radio frequency receiver supporting multiple frequency bands according to an embodiment of the present invention.
  • FIG. 8 is a block diagram of a radio frequency receiver supporting multiple frequency bands according to another embodiment of the present invention.
  • a radio frequency transmitter and a receiver 100 supporting a conventional multi-frequency band includes a multi-frequency band processor 1, a digital / analog signal converter 2, a radio signal processor 3, a plurality of It may include an antenna (4).
  • the multi-frequency band processing unit 1 may generate intermediate frequency signals (IF) and transmit the intermediate frequency signals (IF) to the digital / analog signal conversion unit 2 during radio frequency transmission.
  • a digital-to-analog converter (DAC) provided in the digital / analog signal converter 2 generates intermediate frequency signals of a plurality of preset service frequency bands. ) Can be delivered.
  • the multi-frequency band processing unit 1 may receive intermediate frequency signals from the digital / analog signal converter 2 when receiving a radio frequency.
  • intermediate frequency signals of multiple service frequency bands from analog to digital converters (ADC) 22 included in the digital / analog signal converter 2 are provided to each service band. Can be delivered through a delivery path provided by each.
  • ADC analog to digital converters
  • the digital-to-analog signal converter 2 may include a digital-to-analog converter 21 and an analog-to-digital converter 22.
  • the digital-to-analog signal converter 2 may convert a digital signal and an analog signal to each other at the time of radio frequency transmission or reception as needed. Can be.
  • the digital-to-analog converter 21 may convert the digital signals received from the multi-frequency band processing unit 1 into analog signals and transmit the digital signals to the wireless signal processing unit 3 during radio frequency transmission.
  • the digital-to-analog converter 21 converts digital intermediate frequency signals received from the multi-frequency band processor 1 into analog intermediate frequency signals and then includes a plurality of transmitters provided in the wireless signal processor 3.
  • the transmission may be transmitted to each of the transmitters 31: 31a, 31b, ..., 31n corresponding to the corresponding service band from among (31: 31a, 31b, ..., 31n).
  • the analog-to-digital converter 22 may receive analog signals from the radio signal processor 3, convert the analog signals into digital signals, and transmit the analog signals to the multi-frequency band processor 1.
  • the analog-to-digital converter 22 receives an analog received frequency signal from at least one of the plurality of receivers 32: 32a, 32b,..., 32n provided in the wireless signal processor 3.
  • the converted signal may be transferred to the multi-frequency band processing unit 1 after converting the intermediate frequency signals in the digital form.
  • the radio signal processor 3 may perform signal processing such as band pass filtering, up-conversion, down-conversion, gain amplification, and the like, for intermediate frequency signals and transmission frequency signals during a process of transmitting and receiving radio frequency signals.
  • the radio signal processor 3 may include a plurality of transmitters 31: 31 a, 31 b,..., 31 n corresponding to each of the intermediate frequency signals of the multi-service frequency band during radio frequency transmission.
  • the radio signal processor 3 may include a plurality of transmitters 31: 31 a, 31 b,..., 31 n corresponding to each of the intermediate frequency signals of the multi-service frequency band during radio frequency transmission.
  • at least one of the plurality of transmitters 31: 31a, 31b, ..., 31n is a multiple service frequency from the digital analog converter 21 provided in the digital analog signal converter 2.
  • Antennas corresponding to the respective transmission frequency bands of the plurality of antennas (4: 41a, 41b, ..., 41n) are received by receiving the intermediate frequency signals of the band, and performing the above-described signal processing to convert the transmission frequency signals. (4: 41a, 41b, ..., 41n).
  • the radio signal processor 3 may include a plurality of receivers 32: 32a, 32b,..., 32n respectively corresponding to the received frequency signals of the multiple service frequency band when receiving the radio frequency.
  • the radio signal processor 3 may include a plurality of receivers 32: 32a, 32b,..., 32n respectively corresponding to the received frequency signals of the multiple service frequency band when receiving the radio frequency.
  • the plurality of receivers 32: 32a, 32b, ..., 32n is received from one of the plurality of antennas 4: 41a, 41b, ..., 41n.
  • the received frequency signals may be received, converted into intermediate frequency signals by performing the above-described signal processing, and transmitted to the analog-to-digital converter 22 provided in the digital-to-analog signal converter 2.
  • FIGS. 3 and 6 A detailed description of the signal processing process will be given below with reference to FIGS. 3 and 6.
  • the plurality of antennas 4: 41a, 41b, ..., 41n may include one or more antennas 4: 41a, 41b, ..., 41n so as to correspond to the number of bands of the frequencies being serviced, respectively. .
  • the plurality of antennas 4: 41a, 41b,..., 41n may radiate a transmission frequency signal on a radio line in the state of an electromagnetic wave signal during radio frequency transmission.
  • a transmission frequency signal from which a radio signal processing is completed is received from at least one of the plurality of transmitters 31: 31a, 31b,. It can radiate.
  • the plurality of antennas 4: 41a, 41b,..., 41n may receive an electromagnetic wave signal on a wireless line (in the air) and transmit it as an electrical signal on a wire when receiving a radio frequency.
  • the antennas 4: 41a, 41b, ..., 41n when receiving a radio frequency signal, at least one of the antennas 4: 41a, 41b, ..., 41n receives an electromagnetic wave signal (transmission frequency signal) on a radio line, and receives the plurality of received transmission frequency signals.
  • the receiver 32: 32a, 32b, ..., 32n may transmit the signal to the receiver 32: 32a, 32b, ..., 32n connected to the antenna.
  • the radio frequency transmitter and receiver 100 supporting the conventional multi-frequency band described above includes a plurality of transmitters 31: 31a, 31b, ..., 31n corresponding to each service frequency band in order to service the multi-frequency band. It should further include a plurality of receivers 32: 32a, 32b, ..., 32n.
  • each additional frequency band that must be serviced requires the addition of a separate transmitter, receiver, and antenna.
  • the following describes a radio frequency transmitter and receiver supporting multiple frequency bands according to an embodiment of the present invention.
  • FIG. 2 is a block diagram of a radio frequency transmitter and a receiver supporting multiple frequency bands according to an embodiment of the present invention.
  • the radio signal processor 3 of the radio frequency transmitter and receiver 200 supporting multiple frequency bands may include a single transmitter 31 and a single transmitter 32. That is, the components are more concise than the radio signal processor 3 of the radio frequency transmitter and receiver 100 supporting the conventional multi-frequency band of FIG.
  • the wireless signal processor 3 includes a single transmitter including a plurality of band pass filters (BPFs) of a multi band pass filter (MBPF) method. 33) and a single receiver 34 including a plurality of band stop filters (BSFs) of the multi-band pass filter method. That is, since the radio frequency transmitter and receiver 200 supporting the multiple frequency bands according to an embodiment of the present invention may include a concise component, it may be more easily miniaturized and integrated than conventional products.
  • BPFs band pass filters
  • MBPF multi band pass filter
  • the radio frequency transmitter and receiver 200 supporting the multi-frequency band synthesizes the signals transmitted therein for each type and transmits them through a single path in the form of synthesized synthesized signals.
  • Method can be used. That is, the signal transmission path inside the transmitter and the receiver can be reduced by using the single path to the maximum.
  • each component of the radio frequency transmitter and receiver 200 supporting the multi-frequency band is the same as the detailed description of the component of FIG. Detailed description of the components will be omitted.
  • a radio frequency transmitter and a receiver 200 supporting a multi-frequency band may include a multi-frequency band processor 1, a digital / analog signal converter 2, and a radio signal processor ( 3), may include a plurality of antenna (4).
  • the digital / analog signal converter 2 includes a digital-to-analog converter 21 and an analog-to-digital converter 22.
  • the digital-to-analog converter 21 may receive intermediate frequency signals of a service frequency band in a digital format from the multi-frequency band processing unit 1 at the time of radio frequency transmission.
  • the received signals can be converted into intermediate frequency signals of the service frequency band in the analog format.
  • the digital-to-analog converter 21 may generate a synthesized intermediate frequency signal of an analog type, in which intermediate frequencies of multiple service frequency bands are synthesized at the time of radio frequency transmission, and include a single transmitter provided in the wireless signal processor 3. 33) can be delivered via a single path.
  • the analog-to-digital converter 22 may receive a synthesized transmission frequency signal of an analog format synthesized from a single receiver 34 included in the radio signal processing unit 3 through a single path. May be converted into intermediate frequency signals of multiple service frequency bands in a digital format and then transferred to the multiple frequency band processing unit 1.
  • the wireless signal processor 3 performs signal processing such as baseband filtering, up-conversion, down-conversion, and gain amplification for intermediate frequency signals and transmission frequency signals of multiple service bands during transmission and reception of a wireless signal. Can be done.
  • the wireless signal processor 3 includes a single transmitter 33 including a plurality of transmission bandpass filters of a multiband pass filter method and a single receiver 34 including a plurality of reception band selection filters of a multiband pass filter method. It may include.
  • the single transmitter 33 may perform signal processing on intermediate frequency signals of multiple service frequency bands.
  • the analog intermediate frequency signal synthesized from the digital / analog signal converter 2 may be received through a single path, and the received signal may be wirelessly processed. Thereafter, the signal-processed analog format synthesized transmission frequency signal may be transferred to a plurality of band pass filters through a single path.
  • the single receiver 34 may perform a signal processing process on received frequency signals of multiple service frequency bands. For example, a plurality of reception band selection filters receive transmission frequency signals of multiple service frequency bands, and the received signals are generated as synthesized reception frequency signals in a synthesized analog format to a single path to the digital analog signal conversion unit 2. Can be delivered via
  • the plurality of antennas 4: 41a, 41b,..., And 41n may include one or more antennas, which may correspond to the number of bands of frequencies to be serviced, respectively. And radiate or receive radio frequency signals.
  • antennas corresponding to bands that service transmission frequency signals received from a plurality of transmission bandpass filters of a single transmitter 33 are provided. It is possible to radiate transmission frequencies to a wireless line (in air) through (at least one antenna corresponding to a service frequency band of a plurality of antennas).
  • the plurality of antennas (4: 41a, 41b, ..., 41n) When the plurality of antennas (4: 41a, 41b, ..., 41n) receive a radio frequency signal, at least one of the plurality of antennas (4: 41a, 41b, ..., 41n) is a multiple service frequency from the radio line At least one of the transmission frequency signals of the band may be received, and the received radio frequency signals may be converted into electrical signals on a conductive line and transmitted to a plurality of reception band selection filters of a single receiver 34.
  • the multi-service frequency band may be signal processed through the wireless signal processor 3 including the single transmitter 31 and the single receiver 32. Therefore, a separate transmitter and receiver are not required every time a service frequency band is added, and only an antenna that can correspond to the additional service band is added, thereby supporting the additional service frequency band.
  • the transmitter and the receiver are not required to be additionally configured each time the service frequency band is added, it is possible to save the manufacturing cost of the product, the power consumption of the wireless communication system, the cost and time consumed for the maintenance.
  • a radio frequency transmitter 300 supporting a conventional multiple frequency band includes an intermediate frequency filter 302, a local oscillator 303, and a mixer 305 for each multiple frequency band. ), A low noise amplifier (LNA) 306, and a transmission frequency filter 307.
  • LNA low noise amplifier
  • a plurality of intermediate frequency filters 302: 302a, 302b, 302c, 302d for example, to support four different frequency bands, a plurality of intermediate frequency filters 302: 302a, 302b, 302c, 302d, a plurality of local oscillators 303: 303a, 303b, 303c, 303d, and a plurality of mixers ( 305: 305a, 305b
  • the intermediate frequency filter 302 receives an intermediate frequency signal (IF) 301 of a single service frequency band in a preset analog form from the digital-to-analog converter 21, and removes an unwanted wave from the received intermediate frequency signal 301. After filtering to remove spurious, the filtered intermediate frequency signal may be transferred to the mixer 305.
  • IF intermediate frequency signal
  • the local oscillator 303 may supply a Local Frequency (LO) signal 304 to the mixer 305.
  • LO Local Frequency
  • the mixer 305 uses the LO frequency signal 304 supplied from the local oscillator 303 to up-convert the filtered intermediate frequency signal received from the intermediate frequency filter 302 into a signal of a transmission frequency band. )can do.
  • the signal of the upconverted transmission frequency band may be transferred to the low noise amplifier 306.
  • the low noise amplifier 306 may amplify a gain while minimizing noise of a signal of a transmission frequency band received from the mixer 305, and then transfer the gain to the transmission frequency filter 307.
  • the transmission frequency filter 307 receives the amplified transmission frequency signal from the low noise amplifier 306, performs filtering to remove unnecessary frequency components from the received signal, and then performs a radio frequency signal (RF) 308. You can output Unnecessary frequency components removed here are as follows.
  • an image frequency which is a frequency in which the frequency components generated inside the radio frequency transmitter are introduced together during the frequency upconversion in the mixer 305, is generated unnecessarily. Since the transmission frequency filter 307 has a function as an image reject filter, it removes unnecessary image frequencies except for the transmission frequency signal to ensure the stability of the transmission frequency signal.
  • the transmission frequency filter 307 filters out only the transmission frequency band and removes unnecessary signals except for signals in the transmission frequency band.
  • the radio frequency transmitter 300 supporting the conventional multi-frequency band described above, in order to transmit the multi-frequency band, components of the radio frequency transmitter need to be additionally arranged as many as the number of service frequency bands to be transmitted. Therefore, in order to service multiple frequencies based on the above-described configuration of the conventional radio frequency transmitter 300, the manufacturing cost of the product increases due to components added as many as the number of service frequency bands, and the maintenance cost increases after installation. do.
  • a radio frequency transmitter 400 supporting multiple frequency bands according to an embodiment of the present invention includes an intermediate frequency filter 402, a local oscillator 403, a mixer 405, and a low noise amplifier 406. It may include a single transmitter 33 including a plurality of transmission band pass filters (31a, 31b, 31c, 31d) of the multi-band pass filter.
  • the intermediate frequency filter 402 synthesizes an analog form in which intermediate frequencies 401a, 401b, 401c, and 401d of multiple service frequency bands are synthesized from the digital-analog converter 21 provided in the digital-analog signal converter 21.
  • the synthesized intermediate frequency filtered by the mixer 405 after receiving the intermediate frequency signal 401 through a single path and performing filtering to remove spurious from the received synthesized intermediate frequency signal 401 in analog format. Signals can be delivered through a single path.
  • the local oscillator 302 can supply the LO frequency signal 404 to the mixer 405.
  • the mixer 405 up-converts the filtered synthesized intermediate frequency signal received from the intermediate frequency filter 402 to the synthesized transmit frequency signal of the transmission frequency band using the LO frequency signal 404 received from the local oscillator 403. do.
  • the upconverted composite transmit frequency signal may be delivered to the low noise amplifier 406 via a single path.
  • the low noise amplifier 406 may amplify the gain while minimizing the noise of the synthesized transmission frequency signal received from the mixer 405 and then transfer the gain to the single transmitter 31.
  • the single transmitter 33 may include a plurality of transmission band pass filters 31a, 31b, 31c, and 31d corresponding to service bands.
  • the single transmitter 33 receives the synthesized transmission frequency signal amplified from the low noise amplifier 304 through a single path, and transmits the plurality of transmission band pass filters 31a, 31b, 31c to the received synthesis transmission frequency signal.
  • Transmission band pass filters 31a, 31b, 31c, and 31d corresponding to respective service frequency bands of the 31d) may be output through the transmission path after filtering the transmission frequency of the corresponding service frequency band.
  • the plurality of band pass filters 31a, 31b, 31c, and 31d filter by service bands, and transmit the filtered transmission frequencies through a transmission path for each service frequency band to transmit a plurality of antennas (4: 41a, 41b, ..., 41n may be transmitted to the antennas 4: 41a, 41b, ..., 41n corresponding to the respective transmission frequency bands.
  • the radio frequency transmitter 400 supporting the multi-frequency band according to an embodiment of the present invention differs from the conventional radio frequency transmitter 300 described with reference to FIG. There is no need to add components to the radio frequency transmitter. Therefore, the manufacturing cost can be reduced, and the simple configuration that operates using the synthesized signal and the single path can save the power consumption during operation, compared to the conventional products, and reduce the post-installation operation and maintenance costs. have.
  • FIG. 5 is a block diagram of a radio frequency transmitter supporting multiple frequency bands according to another embodiment of the present invention.
  • the radio frequency transmitter 500 supporting the multi-frequency band according to another embodiment of the present invention is a radio frequency transmitter 400 supporting the multi-frequency band according to an embodiment of the present invention described in detail with reference to FIG. Compared with, there are two differences.
  • the radio frequency transmitter 400 supporting the multi-frequency band uses the single local oscillator 403 to finally output radio frequencies 407: 407a, 407b, 407c, and 407d.
  • the radio frequency transmitter 500 supporting the multi-frequency band uses the plurality of local oscillators 403: 403a, 403b, 403c, and 403d to generate different frequencies.
  • the separation distance between (407: 407a, 407b, 407c, and 407d) can be adjusted.
  • each component of the radio frequency transmitter 500 supporting the multi-frequency band is the same as the detailed description of the configuration of FIG. Detailed description thereof will be omitted.
  • a radio frequency transmitter 500 supporting multiple frequency bands includes an intermediate frequency filter 402 and a plurality of local oscillators 403: 403a and 403b generating different frequencies. 403c, 403d, a frequency combiner 408, a mixer 405, a low noise amplifier 406, a multiband pass filter type of a plurality of transmission bandpass filters 31a, 31b, 31c, 31d It may include a transmitter 33.
  • the plurality of local oscillators 403: 403a, 403b, 403c, and 403d respectively generate a plurality of LO frequency signals 404: 404a, 404b, 404c, and 404d having different frequencies, and generate the plurality of LO frequency signals. (404: 404a, 404b, 404c, 404d) may be passed to the frequency combiner (408).
  • the plurality of local oscillators 403: 403a, 403b, 403c, and 403d include four local oscillators to help the understanding of the radio frequency transmitter 500 supporting the multi-frequency band according to another embodiment, but is not limited thereto. And may additionally include a local oscillator as many as the number of intermediate frequencies of the multi-frequency band serving at least two or more maximum. That is, it may include as many local oscillators as the number of frequency bands output from the digital-to-analog converter 21.
  • the frequency combiner 408 receives and transmits a plurality of LO frequency signals 404: 404a, 404b, 404c, and 404d having different frequencies from the plurality of local oscillators 403: 403a, 403b, 403c, and 403d, respectively.
  • the received plurality of LO frequency signals 404: 404a, 404b, 404c, and 404d may be generated as one synthesized LO frequency signal 409.
  • the generated synthesized LO frequency signal 409 may be delivered to the mixer 303 via a single path.
  • the radio frequency transmitter 500 supporting the multiple frequency band according to another embodiment of the present invention described above is compared to the radio frequency signals outputting the radio frequency transmitter 400 supporting the multiple frequency band according to the embodiment.
  • the separation distance between frequencies of (407: 407a, 407b, 407c, and 407d) can be adjusted. Therefore, noise that may occur due to overlap between frequencies of the output radio frequency signals 407: 407a, 407b, 407c, and 407d can be prevented. This may increase the quality of the output radio frequency signals 407: 407a, 407b, 407c, and 407d.
  • the radio frequency transmitter 500 supporting the multi-frequency band according to another embodiment of the present invention transmits the multi-frequency band in the same manner as the radio frequency transmitter 400 supporting the multi-frequency band according to the embodiment There is no need to further arrange the components of the radio frequency transmitter as much as the service frequency band.
  • the following describes a conventional radio frequency receiver supporting a multi-frequency band in order to help the understanding of a radio frequency receiver supporting a multi-frequency band according to an embodiment of the present invention.
  • a radio frequency receiver 600 supporting a conventional multi-frequency band includes a band select filter (BSF) 601, a low noise amplifier (LNA) 602, and image removal.
  • BSF band select filter
  • LNA low noise amplifier
  • IRF Image Reject Filter
  • IRF Local Oscillator
  • Mixer 6
  • IF Amplifier 607
  • CSF Channel Select Filter
  • a plurality of band selection filters (601: 601a, 601b, 601c, 601d), a plurality of low noise amplifiers (602: 602a, 602b, 602c, 602d), and a plurality of image removals Filters 603: 603a, 603b, 603c, 603d, a plurality of local oscillators 604: 604a, 604b, 604c, 604d, a plurality of mixers 606: 606a, 606b, 606c, 606d, a plurality of intermediate frequency amplifiers ( 607: 607a, 607b, 607c, and 607d) and a plurality of channel selection filters 608: 608a, 608b, 608c, and 608d may be included for each frequency band.
  • the antenna 4 may receive an electromagnetic wave signal in the air, convert it into an electrical signal on a conductive wire, and transmit the converted electromagnetic signal to the band selection filter 601.
  • the band selection filter 601 may band pass filter only a desired frequency band from the received signal and then transmit the band pass filter to the low noise amplifier 304.
  • the low noise amplifier 304 may amplify the received reception frequency signal while suppressing amplification to noise and then amplify the received reception frequency signal to the image removal filter 402.
  • the image elimination filter 402 may pass the bandpass filtering once again before being introduced into the mixer 606 to be delivered to the mixer 606. have.
  • the image removal filter 402 may additionally remove the unwanted wave, and may isolate the receiving frequency stage and the intermediate frequency stage, thereby increasing the stability of the radio frequency receiver.
  • the local oscillator 604 may generate and supply the LO frequency signal 605 for frequency synthesis to the mixer 606.
  • the mixer 606 uses the LO frequency signal 605 supplied from the local oscillator 604 to frequency down-convert the received frequency signal received from the image rejection filter 603 into an intermediate frequency signal.
  • the down-converted intermediate frequency signal may be transmitted to the intermediate frequency amplifier 607.
  • the intermediate frequency amplifier 607 may amplify the gain while minimizing the noise of the intermediate frequency signal received from the mixer 606, and then transfer the gain to the channel selection filter 608.
  • the channel selection filter 608 receives the intermediate frequency signal amplified from the intermediate frequency amplifier 607 and filters the intermediate frequency of the desired service frequency band by performing bandpass filtering. In addition, unwanted waves can be removed together.
  • the filtered intermediate frequency signal may be transmitted to the analog-to-digital converter 22.
  • FIG. 7 is a block diagram of a radio frequency receiver supporting multiple frequency bands according to an embodiment of the present invention.
  • a radio frequency receiver 700 supporting multiple frequency bands may include a single receiver 34 including a plurality of reception band selection filters 32a, 32b, 32c, and 32d. have.
  • each component of the radio frequency receiver 700 supporting the multi-frequency band is the same as the detailed description of the component of FIG. Detailed description of the components will be omitted.
  • a radio frequency receiver 700 supporting multiple frequency bands includes a plurality of reception band selection filters 32a, 32b, 32c, and 32d of a multiband pass filter. It may include a single receiver 34, low noise amplifier 702, image rejection filter 703, local oscillator 704, mixer 706, intermediate frequency amplifier 707, channel selection filter 708 including have.
  • the plurality of receiving band selection filters 32a, 32b, 32c, and 32d of the single receiver 34 respectively receive radio frequency signals 407: 407a, 407b, 407c, and 407d received from the antennas 4, respectively. After filtering for each frequency band, the signal may be generated as one synthesized reception frequency signal and transferred to the low noise amplifier 702.
  • the plurality of reception band selection filters 32a, 32b, 32c, and 32d receive a plurality of antennas (4: 41a, 41b, ..., 41n) through a transmission path provided for each service band when receiving radio frequencies. Transmission frequency signals belonging to the multiple service bands may be received from at least one of the following.
  • the received signals are filtered for each service band through a plurality of reception band selection filters 32a, 32b, 32c, and 32d, and are again generated as a synthesized reception frequency of one synthesized multiple service frequency band, thereby providing low noise through a single path. May be passed to amplifier 702.
  • the radio frequency receiver 700 supporting the multi-frequency band according to an embodiment of the present invention differs from the conventional radio frequency receiver 600 described with reference to FIG. 6 as much as the service frequency band to receive the multi-frequency band. There is no need to add components to the radio frequency transmitter. Therefore, the manufacturing cost can be reduced, and the simple configuration that operates using the synthesized signal and the single path can save the power consumption during operation, compared to the conventional products, and reduce the post-installation operation and maintenance costs. have.
  • FIG. 8 is a block diagram of a radio frequency receiver supporting multiple frequency bands according to another embodiment of the present invention.
  • a radio frequency receiver 800 supporting multiple frequency bands according to another embodiment of the present invention is a radio frequency receiver 700 supporting multiple frequency bands according to an embodiment of the present invention described in detail with reference to FIG. Compared with, there are two differences.
  • a plurality of local oscillators 403: 403a, 403b, 403c, and 403d that generate LO frequency signals 404: 404a, 404b, 404c and 404d of different frequencies are used.
  • the radio frequency receiver 700 supporting the multi-frequency band uses the single local oscillator 704 to finally process intermediate frequencies 401: 401a, 401b, 401c, 401d. ) Is equal to the separation distance of radio frequencies 407: 407a, 407b, 407c, and 407d.
  • the radio frequency receiver 800 supporting the multiple frequency band uses a plurality of local oscillators 403: 403a, 403b, 403c, and 403d to generate different frequencies for final processing.
  • the separation distance between the intermediate frequencies 401: 401a, 401b, 401c, and 401d may be adjusted.
  • each component of the radio frequency receiver 800 supporting the multi-frequency band is the same as the detailed description of the component of FIG. Detailed description thereof will be omitted.
  • a radio frequency receiver 800 supporting multiple frequency bands includes a plurality of reception band selection filters 32a, 32b, 32c, and 32d of a multiband pass filter.
  • a mixer 706, an intermediate frequency amplifier 707, and a channel select filter 708 may be included.
  • the plurality of local oscillators 403: 403a, 403b, 403c, and 403d respectively generate a plurality of LO frequency signals 404: 404a, 404b, 404c, and 404d having different frequencies, and generate the plurality of LO frequency signals. (404: 404a, 404b, 404c, 404d) may be passed to the frequency combiner (408).
  • the plurality of local oscillators 403: 403a, 403b, 403c, and 403d include four local oscillators in order to help the understanding of the radio frequency receiver 800 supporting the multiple frequency bands according to the second embodiment.
  • the local oscillator may further include as many as the number of radio frequencies of the multi-frequency band serving at least two or more maximum. That is, it may include as many local oscillators as the number of frequency bands input to the analog-to-digital converter 22.
  • the frequency combiner 408 receives and transmits a plurality of LO frequency signals 404: 404a, 404b, 404c, and 404d having different frequencies from the plurality of local oscillators 403: 403a, 403b, 403c, and 403d, respectively.
  • the received plurality of LO frequency signals 404: 404a, 404b, 404c, and 404d may be generated as one synthesized LO frequency signal 409.
  • the generated synthesized LO frequency signal 409 may be delivered to the mixer 706 via a single path.
  • the radio frequency receiver 800 supporting the multi-frequency band according to another embodiment of the present invention described above is an intermediate frequency signal processed compared to the radio frequency receiver 700 supporting the multi-frequency band according to the embodiment.
  • the separation distance between frequencies of (401: 401a, 401b, 401c, and 401d) can be adjusted. Therefore, it is possible to prevent noise that may occur due to overlap between frequencies of the intermediate frequency signals 401: 401a, 401b, 401c, and 401d that are processed. This can improve the quality of the intermediate frequency signals 401: 401a, 401b, 401c, and 401d that are processed.
  • the radio frequency receiver 800 supporting the multi-frequency band according to another embodiment of the present invention transmits the multi-frequency band in the same manner as the radio frequency receiver 700 supporting the multi-frequency band according to the embodiment. There is no need to further arrange the components of the radio frequency transmitter as much as the service frequency band.
  • each functional unit may mean a functional and structural combination of hardware for performing the technical idea of the present invention and software for driving the hardware.
  • each functional unit may mean a logical unit of a predetermined code and a hardware resource for performing the predetermined code, and does not necessarily mean a physically connected code or a kind of hardware. It can be easily inferred by the average expert in the art.
  • Multi-Frequency Band Processing Unit 2 Digital / Analog Signal Converter
  • wireless signal processor 4 a plurality of antennas
  • intermediate frequency signal 302 intermediate frequency filter
  • mixer 306 low noise amplifier
  • mixer 406 low noise amplifier
  • radio frequency 408 frequency combiner
  • synthesized LO frequency signal 601 band select filter
  • 602 low noise amplifier 603: image rejection filter
  • mixer 606 mixer 607: intermediate frequency amplifier
  • channel selection filter 702 low noise amplifier
  • intermediate frequency amplifier 708 channel select filter

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Transmitters (AREA)

Abstract

La présente invention concerne un émetteur et un récepteur de fréquence sans fil qui peuvent comprendre : un convertisseur de signal analogique/numérique qui peut mutuellement convertir une pluralité de signaux de fréquence intermédiaire et un signal de fréquence intermédiaire combiné qui est un signal généré au moyen de la combinaison de la pluralité de signaux de fréquence intermédiaire ; un mélangeur qui peut mutuellement convertir le signal de fréquence intermédiaire combiné et un signal de fréquence sans fil combiné ; et une unité de traitement sans fil pour assurer une conversion mutuelle du signal de fréquence sans fil combiné et d'une pluralité de signaux de fréquence sans fil.
PCT/KR2014/009328 2014-10-02 2014-10-02 Émetteur et récepteur de fréquence sans fil prenant en charge une bande multi-fréquence WO2016052786A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/KR2014/009328 WO2016052786A1 (fr) 2014-10-02 2014-10-02 Émetteur et récepteur de fréquence sans fil prenant en charge une bande multi-fréquence

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/KR2014/009328 WO2016052786A1 (fr) 2014-10-02 2014-10-02 Émetteur et récepteur de fréquence sans fil prenant en charge une bande multi-fréquence

Publications (1)

Publication Number Publication Date
WO2016052786A1 true WO2016052786A1 (fr) 2016-04-07

Family

ID=55630804

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2014/009328 WO2016052786A1 (fr) 2014-10-02 2014-10-02 Émetteur et récepteur de fréquence sans fil prenant en charge une bande multi-fréquence

Country Status (1)

Country Link
WO (1) WO2016052786A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110268774A (zh) * 2017-01-20 2019-09-20 谐振公司 使用多频带传输阻塞滤波器的通信接收机
CN115913122A (zh) * 2023-01-09 2023-04-04 北京思信飞扬信息技术股份有限公司 射频信号的生成方法和系统

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6529488B1 (en) * 1998-08-18 2003-03-04 Motorola, Inc. Multiple frequency allocation radio frequency device and method
US20060067426A1 (en) * 2004-09-28 2006-03-30 Maltsev Alexander A Multicarrier transmitter and methods for generating multicarrier communication signals with power amplifier predistortion and linearization
US20120044975A1 (en) * 2010-08-19 2012-02-23 Industrial Technology Research Institute Multi-carrier receiver, multi-carrier transmitter and multi-carrier transceiver system
US8374570B2 (en) * 2004-12-10 2013-02-12 Maxlinear, Inc. Harmonic reject receiver architecture and mixer
EP1492228B1 (fr) * 2003-06-24 2014-01-08 Northrop Grumman Systems Corporation Architecture d'amplificateur à modes d'exploitation multiples

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6529488B1 (en) * 1998-08-18 2003-03-04 Motorola, Inc. Multiple frequency allocation radio frequency device and method
EP1492228B1 (fr) * 2003-06-24 2014-01-08 Northrop Grumman Systems Corporation Architecture d'amplificateur à modes d'exploitation multiples
US20060067426A1 (en) * 2004-09-28 2006-03-30 Maltsev Alexander A Multicarrier transmitter and methods for generating multicarrier communication signals with power amplifier predistortion and linearization
US8374570B2 (en) * 2004-12-10 2013-02-12 Maxlinear, Inc. Harmonic reject receiver architecture and mixer
US20120044975A1 (en) * 2010-08-19 2012-02-23 Industrial Technology Research Institute Multi-carrier receiver, multi-carrier transmitter and multi-carrier transceiver system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110268774A (zh) * 2017-01-20 2019-09-20 谐振公司 使用多频带传输阻塞滤波器的通信接收机
CN110268774B (zh) * 2017-01-20 2021-06-04 谐振公司 使用多频带传输阻塞滤波器的通信接收机
CN115913122A (zh) * 2023-01-09 2023-04-04 北京思信飞扬信息技术股份有限公司 射频信号的生成方法和系统

Similar Documents

Publication Publication Date Title
AU2019312061B2 (en) Electronic device for displaying indicator regarding network and method thereof
WO2020022762A1 (fr) Dispositif électronique pour afficher des indicateurs concernant le réseau et procédé associé
WO2016171298A1 (fr) Système d'antennes distribuées
WO2019146851A1 (fr) Structure de systeme à émissions multiples et terminal mobile la comprenant
WO2015120624A1 (fr) Système et procédé de commutation d'antenne
WO2019050264A1 (fr) Circuit de formation de faisceau pour radar et communication mobile 5g
WO2020145421A1 (fr) Dispositif électronique d'émission de signal de référence
WO2015012620A1 (fr) Appareil filtrant à bande de base analogique d'un émetteur-récepteur sans fil multibande multimodal et procédé de commande de celui-ci
WO2011078498A2 (fr) Dispositif et procédé de communication sans fil à bande large et à modes multiples
WO2020149434A1 (fr) Dispositif électronique permettant d'éviter une interférence
US11804868B2 (en) Radio frequency circuit and communication device
WO2019022473A1 (fr) Procédé de réalisation de mise en œuvre de partie de bande passante dans un système de communication sans fil et appareil associé
CN112087239B (zh) 高频电路、通信装置以及天线模块
WO2016052786A1 (fr) Émetteur et récepteur de fréquence sans fil prenant en charge une bande multi-fréquence
WO2019031840A1 (fr) Dispositif électronique et procédé de traitement de signaux sans fil de différentes bandes de fréquences
WO2012165823A2 (fr) Répéteur
US11201632B2 (en) High-frequency front-end module and communication device
WO2021230419A1 (fr) Circuit d'étalonnage pour compenser la phase et le gain entre les canaux d'un système de formation de faisceau multicanal, système de formation de faisceau multicanal le comprenant et procédé d'étalonnage de canal l'utilisant
WO2016171297A1 (fr) Système d'antennes distribuées, et dispositif distant correspondant
US11258468B2 (en) Radio frequency circuit and communication device
EP1253714B1 (fr) Interface à radiofréquences
WO2021100925A1 (fr) Dispositif électronique à modules d'antenne 5g et module de communication
WO2019168221A1 (fr) Dispositif de communication, terminal mobile le comprenant, et véhicule
WO2020116708A1 (fr) Dispositif électronique fonctionnant dans de multiples bandes
CN100536545C (zh) 电子调谐器和使用该电子调谐器的移动电话装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14903070

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14903070

Country of ref document: EP

Kind code of ref document: A1