Broadband Active Receiving Patch With Resistive Equalization Articles uri icon

publication date

  • January 2008

start page

  • 56

end page

  • 64


  • 1


  • 56

International Standard Serial Number (ISSN)

  • 0018-9480

Electronic International Standard Serial Number (EISSN)

  • 1557-9670


  • The active integrated antenna (AIA) concept has been applied to design a broadband receiver front-end. A design procedure for active broadband patch antennas based on resistive equalization is presented. The use of
    the AIA has allowed the design of efficient RF front-ends by increasing
    its effective gain, noise figure, and merit . In addition to improving
    the classical parameters, the resistive equalization technique allows
    enlarging the bandwidths of the active antenna parameters versus the
    corresponding ones in passive antennas. A receiving patch antenna (with
    one amplifying stage) with a measured noise figure lower than 0.6 dB in a
    bandwidth over 38% and an effective gain improvement of 13 dB over the
    corresponding passive antenna has been achieved. The -parameter has also
    been measured for both the active and passive antenna, resulting in a
    relative planar of 16 dB/K, with a ripple of 0.5 dB, over a 30%
    bandwidth for the active antenna versus a of 22 dB/K for a typical
    front-end with a passive antenna over 20% bandwidth.