A compact digital beamforming SMILE array for mobile communications

A compact digital beamforming SMILE array for mobile communications

A compact spatial multiplexing of local elements (SMILE) scheme smart antenna array with adaptive beamforming is presented. Low-noise amplifiers are implemented as switching elements to maintain a low system noise figure and allow fast switching. The switching scheme effectively reduces N RF channel...

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Veröffentlicht in:IEEE transactions on microwave theory and techniques 2004-12, Vol.52 (12), p.2732-2738
Hauptverfasser: Goshi, D.S., Yuanxun Wang, Itoh, T.
Format: Artikel
Sprache:eng
Schlagworte:
Adaptive arrays
Antenna arrays
Antennas
Applied sciences
Array signal processing
Communication switching
digital beamforming (DBF)
Exact sciences and technology
Hardware
Low-noise amplifiers
Mobile communication
multiplexing
Noise figure
Radio frequency
Radiocommunications
RF signals
smart antennas
switching arrays
Telecommunications
Telecommunications and information theory
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Beschreibung
Zusammenfassung:A compact spatial multiplexing of local elements (SMILE) scheme smart antenna array with adaptive beamforming is presented. Low-noise amplifiers are implemented as switching elements to maintain a low system noise figure and allow fast switching. The switching scheme effectively reduces N RF channels to one, reducing the amount of costly RF hardware by a factor of N. The sampling rate must be higher than the signal bandwidth based on the Nyquist criterion to ensure proper restoration of the original signal. Measured data for destination of arrival estimation, beamforming, and digital data recovery demonstrate the capability and benefits of digital beamforming with this architecture.
ISSN:0018-9480
1557-9670
DOI:10.1109/TMTT.2004.837317