Design of an active microstrip array using a microwave circuit simulator

Demir Ş., Toker C., Hizal A.

Proceedings of the 1997 IEEE MTT-S International Topical Symposium on Technologies for Wireless Applications, Vancouver, Canada, 23 - 26 February 1997, pp.103-106 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Doi Number: 10.1109/mtttwa.1997.595121
  • City: Vancouver
  • Country: Canada
  • Page Numbers: pp.103-106
  • Middle East Technical University Affiliated: Yes


An active antenna array design and simulation of this design with a microwave circuit simulator are presented. This active antenna array is a TV receive only (TVRO) antenna operating at 10 GHz. It is a 8×4 array of rectangular microstrip patch antennas. Eight low noise pHEMTs are placed in the antenna. Passive antenna characteristics are usually obtained by analytical techniques or using special softwares for this purpose. The numerical representation as well as the nonreciprocal nature of the active device necessitates the use of a circuit simulator. In this work, both the antenna and the active circuit characteristics are obtained in the same medium, using microwave circuit simulator LIBRA. The array structure is simulated with LIBRA for gain, noise temperature, radiation pattern, directivity and bandwidth.