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A linear voltage-tunable distributed null device.A linear voltage-tunable null device was predicted, fabricated, and tested. This filter is conceptually a distributed parameter RC representation of the channel of a MOSFET in a network configuration with a second MOSFET that is treated as a variable resistor. Classical transmission-line theory is used to predict a linear tuning curve with applied bias for the device. This concept was used to design a null device having a null that is linearly tunable in the range of 100 kHz. Such devices were fabricated and tested. Typical MOS processing steps were used and the resulting structures are compatible with the planar technology. The compatibility leads towards extension of this work to different frequency ranges for other specific applications.
Document ID
19730038444
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Benz, H. F.
(NASA Langley Research Center Hampton, Va., United States)
Mattauch, R. J.
(Virginia, University Charlottesville, Va., United States)
Date Acquired
August 7, 2013
Publication Date
December 1, 1972
Publication Information
Publication: IEEE Journal of Solid-State Circuits
Volume: SC-7
Subject Category
Electronic Equipment
Accession Number
73A23246
Distribution Limits
Public
Copyright
Other

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