Abstract
This work presents a 3-Port acoustoelectric switch design for surface acoustic wave signal processing. Using a multistrip coupler, the input acoustic wave at Port 1 is split into two parallel and electrically cross-linked acoustoelectric delay lines where an applied voltage can alter the gain and attenuation in each delay line based on the voltage polarity. The switch is demonstrated using a 270 MHz Leaky SAW mode on an InGaAs on 41° Y-cut lithium niobate heterostructure. Applying a +40 V voltage pulse results in an IL of -12.5 dB and -57.5 dB in the gain and isolation switch paths, respectively. This leads to a 45 dB difference in signal strength at the output ports.
| Original language | English |
|---|---|
| Title of host publication | 21st International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2021 |
| Pages | 545-548 |
| Number of pages | 4 |
| DOIs | |
| State | Published - Jun 20 2021 |
| Externally published | Yes |
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