| Autor: |
Revin, Leonid S., Pimanov, Dmitry A., Blagodatkin, Anton V., Gordeeva, Anna V., Pankratov, Andrey L., Chiginev, Alexander V., Rakut', Igor V., Zbrozhek, Viktor O., Kuzmin, Leonid S., Masi, Silvia, de Bernardis, Paolo |
| Předmět: |
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| Zdroj: |
Applied Sciences (2076-3417); Nov2021, Vol. 11 Issue 22, p10746, 11p |
| Abstrakt: |
We present the results of the experimental and theoretical study of the resonant properties and noise of a single cell of a receiving system based on cold-electron bolometers (CEB) with a double-folded slot antenna and coplanar lines. The system was designed to receive signals at 220/240 GHz frequencies with a 5% bandwidth. In measurements, we used the samples of the double-folded slot antennas with slot lengths of 162 um and coplanar line lengths from 185 to 360 um. Measurements of the resonance properties of CEB located at 0.3 K cryostat plate were carried out using a generator based on a high-temperature YBCO Josephson junction located inside the same cryostat at 4 K plate. This arrangement made it possible to obtain smooth amplitude-frequency characteristics with a clearly defined peak of a 15–21 GHz bandwidth at different frequencies. Based on these results, 2-D array of double-folded slot antennas with CEBs as 220/240 GHz LSPE channel prototype was calculated.The absorption efficiency of the array has reached 81% and 77% for 220 and 240 GHz channels, respectively. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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