| Zugriffsnummer | 46370 |
| Dokumenttyp | Konferenzartikel in Zeitschrift |
| Peer Review | mit Peer Review |
| Sprache | Englisch |
| Titel | Investigation of broadband Wilkinson power divider for pulse-driven Josephson voltage standards |
| Autor(in); Institution |
Tian, Hao; 2.4, Quantenelektronik, PTB-Braunschweig
Kieler, Oliver; 2.4, Quantenelektronik, PTB-Braunschweig
Behr, Ralf; 2.6, Elektrische Quantenmetrologie, PTB-Braunschweig
Gerdau, Rolf-Werner; 2.4, Quantenelektronik, PTB-Braunschweig
Kuhlmann, Karsten; 2.2, Hochfrequenz und Felder, PTB-Braunschweig
Kohlmann, Johannes; 2.4, Quantenelektronik, PTB-Braunschweig
|
| Quelle/Jahr | IEEE Transactions on Applied Superconductivity: 3 (2021), 5, 1 - 5 |
| ISSN | 1051-8223 (PRINT) ; 1558-2515 (ONLINE) ; 2378-7074 (CD) |
| DOI | |
| Verlag | New York, NY: IEEE |
| Konferenzangaben | Applied Superconductivity Conference 2020, Virtual Conference, 24, October - 07, November, 2020 |
| Freie Schlagworte | broadband Wilkinson power divider ; Josephson arbitrary waveform synthesizer ; triple-stacked SNS Josephson junctions ; characteristic impedance |
| Zusammenfassung | This paper describes recent developments for increasing the output voltage of the Josephson Arbitrary Wave-form Synthesizer (JAWS) at PTB. For this purpose, we developed modified broadband Wilkinson power dividers, which enable the operation of two or four Josephson junction series arrays per RF channel of the pulse pattern generator and thus the generation of increased output voltages. In detail, we designed and investigated two different Wilkinson power dividers: the one-stage three-section Wilkinson power divider with extended bandwidth and the two-stage single-section Wilkinson divider with more outputs to combine four parallel series arrays. They were both integrated with triple-stacked Josephson junction series arrays. Additionally, a new modulator pulse amplifier was introduced into the JAWS set-up to provide sufficient power for all the junction arrays. Our measurement results show that spectrally pure sinusoidal waveforms were successfully generated with both types of power dividers. With the one-stage three-section Wilkinson power divider, we obtained RMS voltages of nearly 53 mV at a clock-frequency of 15 GHz combined with a test array of 3000 Josephson junctions. As for the two-stage single-section Wilkinson power divider combined with a test array of 6000 Josephson junctions, we synthesized RMS output voltages of about 105 mV. These test results show a promising prospect for quantum voltage standard applications. |
| Kostenfreier Zugang | Open Access Hybrid |
| Rechteinformation | CC BY 4.0 ; Creative Commons Attribution 4.0 License |
| Themenbereich der Metrologie | Elektrizität und Magnetismus |
Zitierung
Tian, H., Kieler, O., Behr, R., Gerdau, R.-W., Kuhlmann, K., & Kohlmann, J. (2021). Investigation of broadband Wilkinson power divider for pulse-driven Josephson voltage standards. IEEE Transactions on Applied Superconductivity, 3(5), 1–5. https://doi.org/10.1109/tasc.2021.3055161