Abstract
Absfracf-Acoustic surface-wave correlation filters for phaseshift-keyed (phase-coded) waveforms have been characterized. The filters were constructed using a surface-wave tapped-delayline technique that resulted in highly compact devices. Both 7- and &bit Barker sequences have been fabricated on Y-cut LiNbO, for propagation in the Z direction. For purposes of evaluation, 20- and 30-MHz center frequencies were used with information bandwidths of 1.6 and 5.0 MHz, respectively. Measurements of the time and frequency domain responses, sidelobe levels, insertion loss, temperature sensitivity, and noise performance have been made. The results obtained closely follow theoretical predictions. Although some problems exist in the control of reflections and secondary generation of the signal, the feasibility of practical acoustic surfacewave digital filters has been demonstrated.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
