P. Hartemann, "Frequency-Selective Scanning of Acoustic Surface Wave," Electronics Letters, May 31, 1973, vol. 9, No. 11, pp. 246 and 247. |
R. M. De La Rue et al, "Frequency-Controlled Beam Steering of Surface Acoustic Waves Using a Stepped Transducer Array," Electronics Letters, 9, 15, Jul. 26, 1973, pp. 326-327. |
Chen S. Tsai et al, "Scanning of Surface Acoustic Wave Phased Array," Proceedings of the IEEE, Jun. 1974, pp. 863 to 864. |
C. S. Tsai et al, "Surface Acoustic Wave Array Transducers and Their Applications," Symposium on Optical and Acoustical Micro Electronics, 1974, pp. 583 to 597. |
P. Hartemann et al, "Wavefront Synthesis and Reconstruction using Acoustic Surface Waves," 1977 Ultrasonic Symposium Proceedings, IEEE Cat. No. 77CH1264-1SU, pp. 840-842. |
P. Cauvard et al, "Ultrasound Beam Scanning Driven by Surface-Acoustic-Waves," 1978 Ultrasonic Symposium Proceedings, IEEE Cat. No. 78CH1344-1, SU, pp. 269-272. |