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Mobile transmit diversity for base‐station antenna arrays
Author(s) -
Kavak Adnan,
Xu Guanghan
Publication year - 2001
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.1230
Subject(s) - base station , antenna diversity , antenna (radio) , dipole antenna , microwave , antenna array , electrical engineering , telecommunications , mobile telephony , engineering , physics , electronic engineering , computer science , mobile radio
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 λ/2 dipole antennas that are separated by λ/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. © 2001 John Wiley & Sons, Inc. Microwave Opt Technol Lett 30: 95–97, 2001.