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@ARTICLE{Hollmann:861558,
author = {Hollmann, Arne and Jirovec, Daniel and Kucharski, Maciej
and Kissinger, Dietmar and Fischer, Gunter and Schreiber,
Lars},
title = {30 {GH}z-voltage controlled oscillator operating at 4 {K}},
journal = {Review of scientific instruments},
volume = {89},
number = {11},
issn = {1089-7623},
address = {[S.l.]},
publisher = {American Institute of Physics},
reportid = {FZJ-2019-02009},
pages = {114701 -},
year = {2018},
abstract = {Solid-state qubit manipulation and read-out fidelities are
reaching fault-tolerance, but quantum error correction
requires millions of physical qubits and therefore a
scalable quantum computer architecture. To solve signal-line
bandwidth and fan-out problems, microwave sources required
for qubit manipulation might be embedded close to the qubit
chip, typically operating at temperatures below 4 K. Here,
we perform the first low temperature measurements of a 130
nm BiCMOS based SiGe voltage controlled oscillator at
cryogenic temperature. We determined the frequency and
output power dependence on temperature and magnetic field up
to 5 T and measured the temperature influence on its noise
performance. The device maintains its full functionality
from 300 K to 4 K. The carrier frequency at 4 K increases by
$3\%$ with respect to the carrier frequency at 300 K, and
the output power at 4 K increases by 10 dB relative to the
output power at 300 K. The frequency tuning range of
approximately $20\%$ remains unchanged between 300 K and 4
K. In an in-plane magnetic field of 5 T, the carrier
frequency shifts by only $0.02\%$ compared to the frequency
at zero magnetic field.},
cin = {PGI-11 / JARA-FIT},
ddc = {620},
cid = {I:(DE-Juel1)PGI-11-20170113 / $I:(DE-82)080009_20140620$},
pnm = {144 - Controlling Collective States (POF3-144)},
pid = {G:(DE-HGF)POF3-144},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:30501331},
UT = {WOS:000451735700054},
doi = {10.1063/1.5038258},
url = {https://juser.fz-juelich.de/record/861558},
}