@article{6b424ed691e94310bd92198f32dae781,
title = "Millimeter-wave sensitivity of YBCO grain boundary Josephson junctions coupled with coplanar waveguide-fed slot dipole antennas",
abstract = "Improvements in the coupling efficiency of millimeter wave quasioptically introduced to high-Tc Josephson junction detectors have been studied. Both increasing of junction resistance and implementation of a lower impedance antenna are required to improve the efficiency. We designed a coplanar waveguide feed slot dipole antenna as a low impedance antenna combined with the Josephson junction detectors. Improvements in the coupling efficiency due to decreasing of antenna impedance have been demon-strated and compared with numerically obtained results by the finite difference time domain method on the slot dipole antenna.",
keywords = "Finite difference time domain methods, High-temperature superconductors, Josephson junctions, Millimeter wave antennas, Millimeter wave detectors",
author = "Kensuke Nakajima and Norikazu Ebisawa and Hiroyasu Sato and Jian Chen and Tsutomu Yamashita and Yukio Sawaya",
note = "Funding Information: Manuscript received October 5, 2004. This work was supported in part by the Ministry of Education, Science, Sports and Culture, in part by the Grant-in-Aid for Scientific Research (B) 14350176, 2002, and in part by the Iwatani Science and Technology Foundation. K. Nakajima and T. Yamashita are with the Faculty of Science and Engineering, Hirosaki University, Hirosaki 036-8561, Japan (e-mail: knaka@si.hi-rosaki-u.ac.jp). N. Ebisawa was with the Research Institute of Electrical Communication, Tohoku University, Sendai 980-8577, Japan. H. Sato and Y. Sawaya are with the Faculty of Engineering, Tohoku University, Sendai 980-8579, Japan. J. Chen is with the Department of Electronic Science and Engineering, University of Nanjing, Nanjing 210093, China. Digital Object Identifier 10.1109/TASC.2005.849915 Fig. 1. Optical micrograph of the millimeter detector of YBCO GBJJ combined with CPW-fed SDA.",
year = "2005",
month = jun,
doi = "10.1109/TASC.2005.849915",
language = "English",
volume = "15",
pages = "549--551",
journal = "IEEE Transactions on Applied Superconductivity",
issn = "1051-8223",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "2 PART I",
}