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Application of surface acoustic wave devices to radio telemetryThree experimental Surface Acoustic Wave Resonators (SAWR) are developed and evaluated. A desired center frequency is obtained by correct spacing of the Inter-Digital Transducers (IDT). Transmitting and receiving IDT's must be close for adequate coupling and a sufficient number of reflectors are required to create a high quality standing wave. A review of oscillator theory is given and current technology evaluated.
Document ID
19840017688
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Strasilla, U. (San Jose State Univ. CA, United States)
Date Acquired
September 4, 2013
Publication Date
January 1, 1983
Subject Category
Space Communications, Spacecraft Communications, Command And Tracking
Report/Patent Number
NASA-CR-173597
NAS 1.26:173597
Report Number: NASA-CR-173597
Report Number: NAS 1.26:173597
Accession Number
84N25756
Funding Number(s)
CONTRACT_GRANT: NAG2-85
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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