公开(公告)号：US3719906A

公开(公告)日：1973-03-06

申请号：US3719906D

申请日：1970-11-12

Applicant: THOMSON CSF

Inventor： TOURNOIS P

IPC: G02B27/44 ,  H03H9/145 ,  H03H9/17 ,  H04R17/08 ,  H03H7/30

CPC classification number: H03H9/17 ,  G02B27/4233 ,  H04R17/08

Abstract: A wave transmission medium has a pair of wave coupling arrays (41, 42) coupled thereto, each including a plurality of rectilinear, co-planar parallel excitation elements, spaced from each other by a predetermined distance a; the wave reception array being located on the transmission medium with respect to the wave transmission array to receive waves at an angle Alpha transmitted into said medium, when a transversely polarized wave is applied to the transmission array, with a direction of oscillations parallel to the co-planar excitation elements; the angle Alpha having a predetermined relation to the wavelength and propagation velocity of waves within the medium.

Abstract translation: 波传播介质具有耦合到其上的一对波耦合阵列（41,42），每一个耦合阵列（41,42）均包括彼此间隔开预定距离a的多个直线，共平面的平行激励元件; 所述波接收阵列相对于所述波发射阵列位于所述传输介质上，以便当传输到所述介质上的角度α接收波时，当将横向极化波施加到所述传输阵列时，所述波形的平行于所述传播阵列的振荡方向 平面激发元件; 角度α与介质内的波的波长和传播速度具有预定的关系。

公开(公告)号：US3764928A

公开(公告)日：1973-10-09

申请号：US3764928D

申请日：1972-09-08

Applicant: THOMSON CSF

Inventor： TOURNOIS P ,  GIRES F ,  MAERFELD C

IPC: H01L41/08 ,  H03F13/00 ,  H03F3/04

CPC classification number: H03F13/00

Abstract: Method and device for amplifying elastic waves by the interaction of these waves with a charge carrier wave of lower speed. The method consists in placing in the path of the charge carrier wave facilities for generating periodic disturbances, so as to render periodic the interaction between charge carrier wave and elastic wave, thereby giving rise to space harmonics. By using a space harmonic corresponding to a carrier wave with a speed lower than that of the elastic wave, the value of the electric field needed to propel the charge carriers is considerably reduced.

Abstract translation: 通过这些波与低速电荷载波的相互作用来放大弹性波的方法和装置。