Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – With rotor
Patent
1988-05-20
1991-01-08
Eisenzopf, Reinhard J.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
With rotor
324 725, 324158F, 333 32, 333 33, G01R 106, G01R 1067
Patent
active
049839101
ABSTRACT:
A millimeter-wave active probe for use in injecting signals with frequencies above 50GHz to millimeter-wave and ultrafast devices and integrated circuits including a substrate upon which a frequency multiplier consisting of filter sections and impedance matching sections are fabricated in uniplanar transmission line format. A coaxial input and uniplanar 50 ohm transmission line couple an approximately 20 GHz input signal to a low pass filter which rolls off at approximately 25 GHz. An input impedance matching section couples the energy from the low pass filter to a pair of matched, antiparallel beam lead diodes. These diodes generate odd-numberd harmonics which are coupled out of the diodes by an output impedance matching network and bandpass filter which suppresses the fundamental and third harmonics and selects the fifth harmonic for presentation at an output.
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"Piosecond Optical Sampling of GaAs Integrated Circuits" by Weingarten et al, IEEE Journ. of Quant. Electron, vol. 24, #2, 2/88 pp. 198-220.
Bloom David M.
Majidi-Ahy Gholamreza
Burns W.
Eisenzopf Reinhard J.
Fish Ronald C.
Stanford University
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