Todor Sheljaskov, Reinhard Lerch, Mario Bechtold, Klaus Newerla, Ulrich Schätzle,
"A Phased Array Antenna for Simultaneous HIFU Therapy and Sonography"
: 1996 IEEE Ultrasonics Symposium. Proceedings, 11-1996, T. Sheljaskov, R. Lerch, M. Bechtold, K. Newerla, U. Schätzle, Proceedings of the IEEE Ultrasonics Symposium, November 1996, San Antonio, USA, pp. 1527 - 1530
Original Titel:
A Phased Array Antenna for Simultaneous HIFU Therapy and Sonography
Sprache des Titels:
Englisch
Original Buchtitel:
1996 IEEE Ultrasonics Symposium. Proceedings
Original Kurzfassung:
A new type of linear phased array antenna, which is able to simultaneously work as therapy and imaging transducer,
was developed. The transducer structure was designed by utilizing finite element simulations. The array elements of this antenna
consist of two piezoceramic and one matching layer. Furthermore, one of these piezoceramic layers is divided into three separately
wired transducers. This new antenna is able to generate a high power therapy sound (sine burst) at a frequency of 1.7 MHz and
also exhibits an efficient pulse echo mode for imaging at a frequency of 5.5 MHz. Moreover, the contradictory requirements of
both operating modes, i.e. the fact that a sharp resonance is needed for an improved efficiency at therapy as well as an improved
bandwidth at sonography, could be fulfilled. The impedance measurement at a prototype shows a good conformity with the
simulation results and validates the advantages of this new transducer design.
Sprache der Kurzfassung:
Englisch
Erscheinungsmonat:
11
Erscheinungsjahr:
1996
Notiz zum Zitat:
T. Sheljaskov, R. Lerch, M. Bechtold, K. Newerla, U. Schätzle, Proceedings of the IEEE Ultrasonics Symposium, November 1996, San Antonio, USA, pp. 1527 - 1530