Mobile transmit diversity for base-station antenna arrays


Kavak A. , Xu G.

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, cilt.30, sa.2, ss.95-97, 2001 (SCI İndekslerine Giren Dergi) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 30 Konu: 2
  • Basım Tarihi: 2001
  • Doi Numarası: 10.1002/mop.1230
  • Dergi Adı: MICROWAVE AND OPTICAL TECHNOLOGY LETTERS
  • Sayfa Sayıları: ss.95-97

Özet

For base-station antenna arrays operating at 1.8 GHz in urban vehicular environments, we experimentally investigate the spatial diversity provided by transmitting from the mobile terminal with two lambda / 2 dipole antennas that are separated by lambda / 2 and arranged in copolarized (CP) and cross-polarized (XP) configurations. The results show that, in both configurations, spatial signatures observed at the antenna array associated with each antenna element of the mobile change differently, especially when nonline-of-sight communication exists. The relative variation of spatial signatures is larger in an XP configuration compared to a CP configuration. (C) 2001 John Wiley & Sons, Inc.