Adjustable microelectronic potentiometer

Details Adjustable microelectronic potentiometer Adjustable microelectronic potentiometer

1993-06-10

1994-08-16

Lateef, Marvin M.

Electrical resistors

Mechanically variable

Movable contact electrically adjustable over length of...

338177, 338202, 338322, 338332, 333 81R, 333 81A, H01C 1016, H01C 1038, H03H 725

Patent

active

053390652

ABSTRACT:
A miniature potentiometer suitable for mechanical adjustment of microwave circuits is provided. Furthermore, there is provided a dual, ganged potentiometer also suitable for mechanical adjustment of microwave circuits. The dual, ganged potentiometer provides reliable tracking of tapers between the two variable resistance elements. Yet further, there is provided a complete, microwave, T-pad attenuator circuit which is mechanically adjustable. The T-pad attenuator uses two ganged potentiometers, whose tapers track in a known non-linear fashion. The tapers may be logarithmic.

REFERENCES:
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patent: 3657691 (1972-04-01), Wilentchik
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patent: 3944962 (1976-03-01), Honda
patent: 4274074 (1981-06-01), Sakamoto
patent: 4435691 (1984-03-01), Ginn
Variable Attenuators Type BT, Publication 5236, Jun., 1974, Allen-Bradley Corporation.

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