{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,9]],"date-time":"2026-03-09T19:40:26Z","timestamp":1773085226828,"version":"3.50.1"},"reference-count":15,"publisher":"World Scientific Pub Co Pte Lt","issue":"03","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J CIRCUIT SYST COMP"],"published-print":{"date-parts":[[2011,5]]},"abstract":"<jats: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. <\/jats:p>","DOI":"10.1142\/s0218126611007426","type":"journal-article","created":{"date-parts":[[2011,4,13]],"date-time":"2011-04-13T09:52:45Z","timestamp":1302688365000},"page":"515-529","source":"Crossref","is-referenced-by-count":3,"title":["DESIGN AND MEASUREMENTS OF A MULTIPLE-OUTPUT TRANSMITTER FOR MIMO APPLICATIONS"],"prefix":"10.1142","volume":"20","author":[{"given":"CONSTANTINOS I.","family":"VOTIS","sequence":"first","affiliation":[{"name":"Physics Department, University of Ioannina, Panepistimioupolis, Ioannina, 45110, Greece"}]},{"given":"PANOS","family":"KOSTARAKIS","sequence":"additional","affiliation":[{"name":"Physics Department, University of Ioannina, Panepistimioupolis, Ioannina, 45110, Greece"}]},{"given":"LEONIDAS P.","family":"IVRISSIMTZIS","sequence":"additional","affiliation":[{"name":"RF Microdevices, Inc, Reading, RG7 4SA, United Kingdom"}]}],"member":"219","published-online":{"date-parts":[[2012,4,30]]},"reference":[{"key":"rf1","author":"Winters H.","journal-title":"IEEE J. Select. Areas Commun."},{"key":"rf2","doi-asserted-by":"publisher","DOI":"10.1002\/bltj.2015"},{"key":"rf3","doi-asserted-by":"publisher","DOI":"10.1023\/A:1008889222784"},{"key":"rf4","doi-asserted-by":"publisher","DOI":"10.1109\/49.730453"},{"key":"rf5","volume-title":"Digital Beamforming in Wireless Communications","author":"Litva J.","year":"1996"},{"key":"rf6","volume":"30","author":"Christofilakis V. N.","journal-title":"Recent Advances in Computer Science Electrical and Computer Engineering Series"},{"key":"rf7","volume-title":"Data Reduction and Error Analysis for the Physical Sciences","author":"Bevingthon P. R.","year":"2002"},{"key":"rf8","volume":"9","author":"Habib Ullah M.","journal-title":"Int. J. Comput. Sci. Network Secur."},{"key":"rf10","first-page":"48","volume":"19","author":"Tienrny J.","journal-title":"IEEE Trans. Audio Electroacoust."},{"key":"rf11","doi-asserted-by":"publisher","DOI":"10.1109\/4.658623"},{"key":"rf14","volume":"34","author":"Cushing R.","journal-title":"Analog Dialogue"},{"key":"rf15","first-page":"1829","volume":"89","author":"Tajima K.","journal-title":"IEICE Trans. Electron. E"},{"key":"rf16","doi-asserted-by":"publisher","DOI":"10.1007\/978-1-4757-2870-5"},{"key":"rf17","volume-title":"Direct Digital Frequency Synthesizers","author":"Kroupa V. F.","year":"1999"},{"key":"rf18","first-page":"903","volume":"2","author":"Votis C.","journal-title":"Int. J. Commun., Network Syst. Sci."}],"container-title":["Journal of Circuits, Systems and Computers"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.worldscientific.com\/doi\/pdf\/10.1142\/S0218126611007426","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2019,8,6]],"date-time":"2019-08-06T17:16:32Z","timestamp":1565111792000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.worldscientific.com\/doi\/abs\/10.1142\/S0218126611007426"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2011,5]]},"references-count":15,"journal-issue":{"issue":"03","published-online":{"date-parts":[[2012,4,30]]},"published-print":{"date-parts":[[2011,5]]}},"alternative-id":["10.1142\/S0218126611007426"],"URL":"https:\/\/doi.org\/10.1142\/s0218126611007426","relation":{},"ISSN":["0218-1266","1793-6454"],"issn-type":[{"value":"0218-1266","type":"print"},{"value":"1793-6454","type":"electronic"}],"subject":[],"published":{"date-parts":[[2011,5]]}}}