Open AccessSurface acoustic wave type electrode‐area‐weighted wavelet inverse‐transform processors with phase compensation
Author(s) -
Gao Lili,
Lu Wenke
Publication year - 2017
Publication title -
iet circuits, devices and systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.251
H-Index - 49
eISSN - 1751-8598
pISSN - 1751-858X
DOI - 10.1049/iet-cds.2017.0092
Subject(s) - inverse , wavelet , wavelet transform , surface acoustic wave , electrode , phase (matter) , transducer , materials science , acoustics , compensation (psychology) , envelope (radar) , surface (topology) , diffraction , mathematics , algorithm , computer science , optics , physics , telecommunications , artificial intelligence , geometry , psychology , radar , quantum mechanics , psychoanalysis
The main purpose of this research is to investigate a novel implementation method for a surface acoustic wave type (SAWT) electrode‐area‐weighted (EAW) wavelet inverse‐transform processor (WITP). The method of EAW is that the electrode areas of the input and output interdigital transducers (IDTs) are proportional to the envelope areas of the wavelet function (i.e. the two IDTs are identical). By this method, the SAWT EAW WITP is fabricated on X‐112°Y LiTaO 3 substrate material. In the study, the diffraction problem and phase difference as two key problems are presented and the solution to two problems are implemented.