TY - GEN
T1 - Improved THz Reception by Non-Conventional Structure of Planar Dipole Antenna with Superconducting Josephson Junction Detector
AU - Holdengreber, Eldad
AU - Mizrahi, Moshe
AU - Khavkin, Vitaly
AU - Schacham, Shmuel E.
AU - Farber, Eliyahu
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/11
Y1 - 2019/11
N2 - Intensity and frequency of THz RF radiation are easily derived from superconducting Josephson junctions detectors I-V characteristics. The RF radiation generates current steps, correlated to intensity. The voltage at the steps renders accurately the RF frequency. DC measurements simplify significantly the detection systems. Implementing junctions in high temperature superconductors, requiring liquid nitrogen cooling only, reduces drastically operating complexity and cost. System efficiency is highly sensitive to impedance mismatch between antenna and low impedance junction. We propose improved planar dipole antenna structure, where the junction is placed between the ends of two strips, removed from the dipole. Theoretical RF analysis of the influence of junction parameters on input impedance was carried out. Extensive simulations of detection system were performed. High impedance matching was obtained for 195 to 215GHz, show high directivity, with radiation gain of 5. 22dB and low return losses of 35dB.
AB - Intensity and frequency of THz RF radiation are easily derived from superconducting Josephson junctions detectors I-V characteristics. The RF radiation generates current steps, correlated to intensity. The voltage at the steps renders accurately the RF frequency. DC measurements simplify significantly the detection systems. Implementing junctions in high temperature superconductors, requiring liquid nitrogen cooling only, reduces drastically operating complexity and cost. System efficiency is highly sensitive to impedance mismatch between antenna and low impedance junction. We propose improved planar dipole antenna structure, where the junction is placed between the ends of two strips, removed from the dipole. Theoretical RF analysis of the influence of junction parameters on input impedance was carried out. Extensive simulations of detection system were performed. High impedance matching was obtained for 195 to 215GHz, show high directivity, with radiation gain of 5. 22dB and low return losses of 35dB.
KW - Antennas
KW - Josephson junctions
KW - Millimeter wave radiation
KW - THz detectors.
UR - http://www.scopus.com/inward/record.url?scp=85078885983&partnerID=8YFLogxK
U2 - 10.1109/COMCAS44984.2019.8958169
DO - 10.1109/COMCAS44984.2019.8958169
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AN - SCOPUS:85078885983
T3 - 2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems, COMCAS 2019
BT - 2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems, COMCAS 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems, COMCAS 2019
Y2 - 4 November 2019 through 6 November 2019
ER -