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(Color online) Schematic of the proposed 2DEG IDT SAW filter on /sapphire structure.
SEM images of SAW filters with (a) metal IDTs and (b) 2DEG IDTs.
(Color online) Frequency and time transfer characteristics of the SAW filter with metal-2DEG IDTs. The first Sezawa and Love modes are labeled S and L, respectively.
(Color online) Transfer and reflection characteristics of SAW filters composed of (a) metal-metal IDTs and (b) 2DEG-2DEG IDTs. The first Sezawa, Love, and Rayleigh modes are labeled S, L, and R, respectively.
(Color online) Reflection coefficients of the SAW filters with metal-to-metal IDTs and metal-to-2DEG IDTs.
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