Integrated dual-channel X-band offset-transmitter for phase steering and DDMA arrays

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    Abstract

    Multiple-Input and Multiple-Output (MIMO) arrays provide more degrees of freedom than conventional phased arrays. They require that every transmitting element of the array can be identified when received. One way to achieve this is to give every element its own unique frequency. Offset-Transmitters may be used to introduce MIMO or Doppler Division Multiple Access (DDMA) into phased-arrays without an excessive increase in waveform-generating hardware. Our dual-channel demonstrator IC can obtain a phase accuracy better than 1 degree and an spurious level of better than -65dBc for a single on-chip channel. This work investigates at X-band the effects of the limited on-chip isolation of 35dB, when multiple offset outputs are generated on a single chip for both beam steering and DDMA. In case of beam steering, the requirements on channel-to-channel isolation are less strict, making it well within reach. In the case of DDMA, we recommend increasing the channel-to-channel isolation by implementing multiple chips, in which case independent signals can be generated.
    Original languageEnglish
    Title of host publicationIEEE Compound Semiconductor Integrated Circuit Symposium, CSICS 2016
    Place of PublicationUSA
    PublisherIEEE
    Pages1-4
    Number of pages4
    ISBN (Print)978-1-5090-1609-9
    DOIs
    Publication statusPublished - 24 Oct 2016
    EventIEEE Compound Semiconductor Integrated Circuit Symposium, CSICS 2016 - DoubleTree by Hilton Hotel Austin, Austin, United States
    Duration: 23 Oct 201626 Oct 2016
    https://eventegg.com/csics-2016/

    Publication series

    Name
    PublisherIEEE

    Conference

    ConferenceIEEE Compound Semiconductor Integrated Circuit Symposium, CSICS 2016
    Abbreviated titleCSICS 2016
    CountryUnited States
    CityAustin
    Period23/10/1626/10/16
    Internet address

    Keywords

    • EWI-27434
    • IR-102617
    • METIS-319487

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