Design and Measurements of a Multiple-Output Transmitter for Mimo Applications (Journal article)

Votis, C. I./ Kostarakis, P./ Ivrissimtzis, L. P.

The design of a multiple-output transmitter for digital beamforming (DBF), Multiple-Input Multiple-Output (MIMO) and channel sounder applications, based on Direct Digital Synthesis (DDS) system is presented and investigated in terms of antenna array performance. DDS generates independently modulated signals on specific carrier frequencies and is employed as the first stage in the proposed implementation, furnishing output signal of configurable amplitude, phase and frequency. The resulting phase progression, amplitude and beamforming accuracy of a beam steering array are further investigated, showing that the proposed architecture can provide a steering beam with high accuracy. Experimental results of system performance indicate that this architecture can drive efficiently and accurately an antenna array with independent modulated RF signals, with programmable frequency, initial phase, and magnitude.
Institution and School/Department of submitter: Πανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών και Τεχνολογιών. Τμήμα Βιολογικών Εφαρμογών και Τεχνολογιών
Keywords: direct digital synthesis,digital beamforming,channel sounder,mimo systems,synthesizer
ISSN: 0218-1266
Link: <Go to ISI>://000289476400011
Appears in Collections:Άρθρα σε επιστημονικά περιοδικά ( Ανοικτά)

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