QT designed instrumentation -microwave

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general info on microwaves

MW coax switch driver unit Unit that can drive MW relais switches providing the pulse currents to set them (both cryogenic and roomtemp). Can be used with manual and USB control more info

10MHz-1GHz distribution amplifier with low phasenoise and prog dividers

10MHz distribution amplifier with low phasenoise more info

diplexers, combining AWG with MW source with low loss and low interaction diplexer 1: dc-200MHz/ 600MHz-4GHz

MW switch, electronic, 40W RF, 500MHz-6GHz user documentation and measured data

phase readout (and stabilisation) of microwave generators (example shows 10MHz generator spacing, has changed to 1MHz spacing now) view the basic experimental application more info on the sampling concept example reading of a 20GHz signal, recorded with 10sec persistance showing the phasestability of the readout: Phase readout rack, with 6 samplingheads (inputs A...F)  voltage controlled sampling delay input and 10MHz ref

dc-block (5kHz-2GHz)

cryogenic Bias-Tee's 5Hz-2.5GHz (connected to gate) circuit

room-temperature Bias-Tees

room-temperature Bias-Tee 10kHz->3Ghz with d.c.monitor out (SSPD application) bottom/top view   S21: green: cable only, yellow: cable+bias-tee S11: red:cable only, blue: cable+bias-tee circuit

BalUn (balanced output produces 2 opposite phase signals from 1 input signal) phase error <8deg from 100MHz to >1GHz

tunable bandpass filters