Direct RF modulation transmitter

Shuichi Fukuda (Inventor), Bram Nauta (Inventor)

Research output: PatentProfessional

18 Downloads (Pure)

Abstract

PROBLEM TO BE SOLVED: To provide a direct RF modulation transmitter capable of saving more power consumption. SOLUTION: The direct RF modulation transmitter comprises: a passive mixer circuit 100 which inputs digital baseband data D of 1 bit, inverted data DN, a first RF signal, and a second RF signal whose phase is different from that of the first RF signal by 180 degrees and outputs a first voltage signal and a second voltage signal; and a plurality of unit blocks which include a MOS transistor 107, and MOS transistors 105, 106 which convert constant current generated by the MOS transistor 107 to a first output signal and a second output signal in accordance with the first voltage signal and the second voltage signal outputted from the passive mixer circuit 100.; The direct RF modulation transmitter modulates the first RF signal and the second RF signal by a digital baseband signal comprising digital baseband data of a plurality of bits and adds the output signals from the respective unit blocks. ;COPYRIGHT: (C)2013,JPO&INPITPROBLEM TO BE SOLVED: To provide a direct RF modulation transmitter capable of saving more power consumption.SOLUTION: The direct RF modulation transmitter comprises: a passive mixer circuit 100 which inputs digital baseband data D of 1 bit, inverted data DN, a first RF signal, and a second RF signal whose phase is different from that of the first RF signal by 180 degrees and outputs a first voltage signal and a second voltage signal; and a plurality of unit blocks which include a MOS transistor 107, and MOS transistors 105, 106 which convert constant current generated by the MOS transistor 107 to a first output signal and a second output signal in accordance with the first voltage signal and the second voltage signal outputted from the passive mixer circuit 100.; The direct RF modulation transmitter modulates the first RF signal and the second RF signal by a digital baseband signal comprising digital baseband data of a plurality of bits and adds the output signals from the respective unit blocks.
Original languageEnglish
Patent numberJP2013051494
Publication statusPublished - 14 Mar 2013

Fingerprint

Transmitters
MOSFET devices
Modulation
Mixer circuits
Electric potential
Networks (circuits)
Electric power utilization

Keywords

  • EWI-27357
  • IR-101894

Cite this

Fukuda, S., & Nauta, B. (2013). Direct RF modulation transmitter. (Patent No. JP2013051494).
Fukuda, Shuichi (Inventor) ; Nauta, Bram (Inventor). / Direct RF modulation transmitter. Patent No.: JP2013051494.
@misc{315a60f59c304efdab0e550153332da0,
title = "Direct RF modulation transmitter",
abstract = "PROBLEM TO BE SOLVED: To provide a direct RF modulation transmitter capable of saving more power consumption. SOLUTION: The direct RF modulation transmitter comprises: a passive mixer circuit 100 which inputs digital baseband data D of 1 bit, inverted data DN, a first RF signal, and a second RF signal whose phase is different from that of the first RF signal by 180 degrees and outputs a first voltage signal and a second voltage signal; and a plurality of unit blocks which include a MOS transistor 107, and MOS transistors 105, 106 which convert constant current generated by the MOS transistor 107 to a first output signal and a second output signal in accordance with the first voltage signal and the second voltage signal outputted from the passive mixer circuit 100.; The direct RF modulation transmitter modulates the first RF signal and the second RF signal by a digital baseband signal comprising digital baseband data of a plurality of bits and adds the output signals from the respective unit blocks. ;COPYRIGHT: (C)2013,JPO&INPITPROBLEM TO BE SOLVED: To provide a direct RF modulation transmitter capable of saving more power consumption.SOLUTION: The direct RF modulation transmitter comprises: a passive mixer circuit 100 which inputs digital baseband data D of 1 bit, inverted data DN, a first RF signal, and a second RF signal whose phase is different from that of the first RF signal by 180 degrees and outputs a first voltage signal and a second voltage signal; and a plurality of unit blocks which include a MOS transistor 107, and MOS transistors 105, 106 which convert constant current generated by the MOS transistor 107 to a first output signal and a second output signal in accordance with the first voltage signal and the second voltage signal outputted from the passive mixer circuit 100.; The direct RF modulation transmitter modulates the first RF signal and the second RF signal by a digital baseband signal comprising digital baseband data of a plurality of bits and adds the output signals from the respective unit blocks.",
keywords = "EWI-27357, IR-101894",
author = "Shuichi Fukuda and Bram Nauta",
year = "2013",
month = "3",
day = "14",
language = "English",
type = "Patent",
note = "JP2013051494",

}

Fukuda, S & Nauta, B 2013, Direct RF modulation transmitter, Patent No. JP2013051494.

Direct RF modulation transmitter. / Fukuda, Shuichi (Inventor); Nauta, Bram (Inventor).

Patent No.: JP2013051494.

Research output: PatentProfessional

TY - PAT

T1 - Direct RF modulation transmitter

AU - Fukuda, Shuichi

AU - Nauta, Bram

PY - 2013/3/14

Y1 - 2013/3/14

N2 - PROBLEM TO BE SOLVED: To provide a direct RF modulation transmitter capable of saving more power consumption. SOLUTION: The direct RF modulation transmitter comprises: a passive mixer circuit 100 which inputs digital baseband data D of 1 bit, inverted data DN, a first RF signal, and a second RF signal whose phase is different from that of the first RF signal by 180 degrees and outputs a first voltage signal and a second voltage signal; and a plurality of unit blocks which include a MOS transistor 107, and MOS transistors 105, 106 which convert constant current generated by the MOS transistor 107 to a first output signal and a second output signal in accordance with the first voltage signal and the second voltage signal outputted from the passive mixer circuit 100.; The direct RF modulation transmitter modulates the first RF signal and the second RF signal by a digital baseband signal comprising digital baseband data of a plurality of bits and adds the output signals from the respective unit blocks. ;COPYRIGHT: (C)2013,JPO&INPITPROBLEM TO BE SOLVED: To provide a direct RF modulation transmitter capable of saving more power consumption.SOLUTION: The direct RF modulation transmitter comprises: a passive mixer circuit 100 which inputs digital baseband data D of 1 bit, inverted data DN, a first RF signal, and a second RF signal whose phase is different from that of the first RF signal by 180 degrees and outputs a first voltage signal and a second voltage signal; and a plurality of unit blocks which include a MOS transistor 107, and MOS transistors 105, 106 which convert constant current generated by the MOS transistor 107 to a first output signal and a second output signal in accordance with the first voltage signal and the second voltage signal outputted from the passive mixer circuit 100.; The direct RF modulation transmitter modulates the first RF signal and the second RF signal by a digital baseband signal comprising digital baseband data of a plurality of bits and adds the output signals from the respective unit blocks.

AB - PROBLEM TO BE SOLVED: To provide a direct RF modulation transmitter capable of saving more power consumption. SOLUTION: The direct RF modulation transmitter comprises: a passive mixer circuit 100 which inputs digital baseband data D of 1 bit, inverted data DN, a first RF signal, and a second RF signal whose phase is different from that of the first RF signal by 180 degrees and outputs a first voltage signal and a second voltage signal; and a plurality of unit blocks which include a MOS transistor 107, and MOS transistors 105, 106 which convert constant current generated by the MOS transistor 107 to a first output signal and a second output signal in accordance with the first voltage signal and the second voltage signal outputted from the passive mixer circuit 100.; The direct RF modulation transmitter modulates the first RF signal and the second RF signal by a digital baseband signal comprising digital baseband data of a plurality of bits and adds the output signals from the respective unit blocks. ;COPYRIGHT: (C)2013,JPO&INPITPROBLEM TO BE SOLVED: To provide a direct RF modulation transmitter capable of saving more power consumption.SOLUTION: The direct RF modulation transmitter comprises: a passive mixer circuit 100 which inputs digital baseband data D of 1 bit, inverted data DN, a first RF signal, and a second RF signal whose phase is different from that of the first RF signal by 180 degrees and outputs a first voltage signal and a second voltage signal; and a plurality of unit blocks which include a MOS transistor 107, and MOS transistors 105, 106 which convert constant current generated by the MOS transistor 107 to a first output signal and a second output signal in accordance with the first voltage signal and the second voltage signal outputted from the passive mixer circuit 100.; The direct RF modulation transmitter modulates the first RF signal and the second RF signal by a digital baseband signal comprising digital baseband data of a plurality of bits and adds the output signals from the respective unit blocks.

KW - EWI-27357

KW - IR-101894

M3 - Patent

M1 - JP2013051494

ER -

Fukuda S, Nauta B, inventors. Direct RF modulation transmitter. JP2013051494. 2013 Mar 14.