Abstract
Elastic convolvers are very important for signal-processing devices of the spread spectrum communication systems. We have already fabricated a dispersive IDT with down-chirp directivity on the Y cut-Z propagation LiNbO 3 and we fabricated a convolver using this IDT and dispersive split IDT with bi-directionality. An dispersive electrode IDT with an up-chirp directivity has not been obtained. We now propose a dispersive split IDT with an up-chirp directivity using Al/Cr bimetal electrode on Y-Z LiNbO 3 substrate. We have successfully fabricated the required IDT using an electro-chemical effect. Furthermore, we also obtained the elastic convolver using this IDT with a high efficiency -56.5 dBm and low-insertion loss of 11.9 dB at a center frequency of 200 MHz.
| Original language | English |
|---|---|
| Pages (from-to) | 286-290 |
| Number of pages | 5 |
| Journal | Proceedings of the Annual IEEE International Frequency Control Symposium |
| Publication status | Published - 1996 Dec 1 |
| Event | Proceedings of the 1996 50th IEEE International Frequency Control Symposium - Honolulu, HI, USA Duration: 1996 Jun 5 → 1996 Jun 7 |
ASJC Scopus subject areas
- Control and Systems Engineering
- Electrical and Electronic Engineering