Electrical resistors – With terminal – With three or more terminals
Patent
1995-10-13
1998-11-24
Paschall, Mark H.
Electrical resistors
With terminal
With three or more terminals
338216, 338217, 333995, H01P 100
Patent
active
058413421
ABSTRACT:
A low insertion loss, wide bandwidth, microwave switch has a superconducting transmission line that can reversibly go from a superconducting state to a normal state by the application of a DC voltage. When in the normal state, the switch is "off" and microwave signals are attenuated. To reduce the voltage necessary to cause switching, the width of the transmission line is decreased. This decrease in voltage is accomplished in a controlled manner so that there are no spurious reflections produced on the line, resulting in a wide operating bandwidth. Previous microwave switches use other means to switch between superconducting and normal and suffer from disadvantages such as relatively slow switching time, complexity or narrow bandwidths as a result.
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Hegmann Frank A.
Moffat Steven H.
Poulin Darcy G.
Preston John S.
Com Dev Ltd.
Easthom Karl
Paschall Mark H.
Schnurr Daryl W.
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