A dual-band cold-electron bolometer with on-chip filters for the 220/240GHz channels of the LSPE instrument
Journal article, 2019
We are developing multi-chroic double-slot antenna with cold-electron Bolometer (CEB) on-chip filters for the 220/240 GHz interstellar dust monitoring channels of the LSPE-SWIPE experiment. For this goal, we used a narrowband double-slot resonant antenna with CEBs connected by coplanar lines. The simulations show that we have achieved 5% bandwidth for 220 GHz and 5.5% bandwidth for 240 GHz in our numeric modeling for the single cells. A series array of unit cells using double-slot design and coplanar lines with CEBs shows proper frequency selection. Estimations of the noise properties of the CEB arrays in a voltage-biased mode with the SQUID readout show photon-noise limited operation for the optical power load of 6 pW for channel 220 GHz and 20 pW for channel 240 GHz.
SIN tunnel junction
SQUID
double-slot antenna
cold-electron bolometer
dual-band
Author
Leonid Kuzmin
Nizhny Novgorod State Technical University
Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics
D. A. Pimanov
Nizhny Novgorod State Technical University
Gordeeva
Russian Academy of Sciences
Nizhny Novgorod State Technical University
Chiginev
Russian Academy of Sciences
Nizhny Novgorod State Technical University
S. Masi
Sapienza University of Rome
P. de Bernardis
Sapienza University of Rome
Superconductor Science and Technology
0953-2048 (ISSN) 1361-6668 (eISSN)
Vol. 32 8 084005Subject Categories
Telecommunications
Other Physics Topics
Signal Processing
Other Electrical Engineering, Electronic Engineering, Information Engineering
DOI
10.1088/1361-6668/ab214b