% IMPORTANT: The following is UTF-8 encoded. This means that in the presence % of non-ASCII characters, it will not work with BibTeX 0.99 or older. % Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or % “biber”. @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}, }