EFFECT OF MUTUAL COUPLING AND CONFIGURATION OF CONCENTRIC CIRCULAR ARRAY ANTENNA ON THE SIGNAL-TO-INTERFERENCE PERFORMANCE IN CDMA SYSTEMS | Zendy

R. Fallahi | Zendy; Mehdi Roshandel | Zendy

Open Access

EFFECT OF MUTUAL COUPLING AND CONFIGURATION OF CONCENTRIC CIRCULAR ARRAY ANTENNA ON THE SIGNAL-TO-INTERFERENCE PERFORMANCE IN CDMA SYSTEMS

Author(s) -

R. Fallahi,

Mehdi Roshandel

Publication year - 2007

Publication title -

electromagnetic waves

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.437

H-Index - 89

eISSN - 1559-8985

pISSN - 1070-4698

DOI - 10.2528/pier07070104

Subject(s) - concentric , interference (communication) , coupling (piping) , circular buffer , signal (programming language) , antenna (radio) , physics , antenna array , acoustics , topology (electrical circuits) , telecommunications , computer science , engineering , geometry , mathematics , electrical engineering , channel (broadcasting) , mechanical engineering , programming language

The suitable use of an array antenna at the base station of a wireless communication system can result in improvement in signalto-interference ratio (SIR). In the present work, we consider circular array (CA) and concentric circular antenna array (CCAA) that are used for smart antenna systems. The performance criteria for SIR improvement is employed in this paper, is the spatial interference suppression coefficient. We first develop the expression of this figure of merit for CCAA and then analyze and compare the SIR performance for various configurations of eight and nine elements of CA and CCAA, with and without the element in the center by using circular patch antenna are provided. In addition, the effect of mutual coupling (MC) is taken into account.

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