• DocumentCode
    2133272
  • Title

    A GaAs MMIC Digital Phase Modulator

  • Author

    Avitabile, G. ; Cidronali, A. ; Salvador, C. ; Manes, G.

  • Author_Institution
    Dipartimento di Ingegneria Elettronica, Via S. Marta, 3 - 1 - 50139 - FLORENCE - ITALY
  • Volume
    1
  • fYear
    1997
  • fDate
    8-12 Sept. 1997
  • Firstpage
    354
  • Lastpage
    358
  • Abstract
    The paper introduces a GaAs MMIC digital phase modulator based on a lumped quadrature hybrid. The quadrature coupler is implemented using two interleaved spiral inductors in a transformer-like configuration. The phase control is obtained electronically tuning two L-C resonators that load the coupled ports. The resulting phase modulator exhibits a continuous phase-shift capability of nearly 230°. The modulator can be digitally driven providing a 0°-180° or 0°-90° phase-shift, with constant insertion loss. Theoretical and experimental results are discussed.
  • Keywords
    Coupling circuits; Gallium arsenide; Insertion loss; MMICs; Phase modulation; Prototypes; Radio frequency; Spirals; Symmetric matrices; Transmission line matrix methods;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Microwave Conference, 1997. 27th European
  • Conference_Location
    Jerusalem, Israel
  • Type

    conf

  • DOI
    10.1109/EUMA.1997.337824
  • Filename
    4138865
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2133272