TY - GEN
T1 - 79 GHz Meandering Enclosed-coplanar Variable Delay Lines in Liquid Crystals Encapsulated within Independent and Shared Cavities
AU - Li, Jinfeng
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - New meandering enclosed-coplanar waveguide (MECPW) millimetre-wave variable delay lines are designed with a bent core line interfacing a shared layer of highly anisotropic liquid crystals (LC) GT7-29001. Impacting tunable dielectric's volume, phase-tuning range, cost, and insertion loss, two device designs are proposed, featuring an independent cavity, and a shared cavity, respectively. Up to 5°/dB of improvement in the figure-of-merit is foreseen at 79 GHz by using the shared-cavity design, with a further benefit of reducing the required LC filling volume by 1.6% per device. The size and cost reductions are promising for mass production targeting a phased array feed.
AB - New meandering enclosed-coplanar waveguide (MECPW) millimetre-wave variable delay lines are designed with a bent core line interfacing a shared layer of highly anisotropic liquid crystals (LC) GT7-29001. Impacting tunable dielectric's volume, phase-tuning range, cost, and insertion loss, two device designs are proposed, featuring an independent cavity, and a shared cavity, respectively. Up to 5°/dB of improvement in the figure-of-merit is foreseen at 79 GHz by using the shared-cavity design, with a further benefit of reducing the required LC filling volume by 1.6% per device. The size and cost reductions are promising for mass production targeting a phased array feed.
KW - 79 GHz
KW - delay line
KW - insertion loss
KW - liquid crystal
KW - mm-Wave
KW - passive RF components
KW - phased array antenna
UR - https://www.scopus.com/pages/publications/85146646211
U2 - 10.1109/ISAP53582.2022.9998660
DO - 10.1109/ISAP53582.2022.9998660
M3 - Conference contribution
AN - SCOPUS:85146646211
T3 - 2022 International Symposium on Antennas and Propagation, ISAP 2022
SP - 457
EP - 458
BT - 2022 International Symposium on Antennas and Propagation, ISAP 2022
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 27th International Symposium on Antennas and Propagation, ISAP 2022
Y2 - 31 October 2022 through 3 November 2022
ER -