Danicki Eugene J
IEEE Trans Ultrason Ferroelectr Freq Control. 2008 Sep;55(9):1890-4. doi: 10.1109/TUFFC.879.
Interdigital transducers applied in surface acoustic wave devices have fingers (conducting strips) of varying lengths defining the transducer apodization. Most theoretical papers neglect finite fingers' length in evaluation of the electric field in the transducer plane and the transducer's capacitance. This letter presents the generalized Blotekjaer, Ingebrigtsen, and Skeie's expansion analysis that may help in filling this gap in the transducer theory.
应用于表面声波器件的叉指换能器具有不同长度的指条（导电条），这些指条决定了换能器的变迹。大多数理论论文在评估换能器平面内的电场和换能器电容时忽略了指条的有限长度。本文提出了广义的布洛特克耶尔、英格布里格森和斯基耶的展开分析，这可能有助于填补换能器理论中的这一空白。
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