TY - GEN
T1 - Toward Hyper-Compact Rotman Lenses
T2 - 2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/URSI 2023
AU - Kashyap, Bharath G.
AU - Diaz, Rodolfo
AU - Trichopoulos, Georgios C.
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - We present the design and characterization of a linear meta-transmission line (meta-TL) suitable for realizing hyper-compact Rotman lenses. Rotman lenses are true time delay beamforming networks that usually find applications in very-/ultra-high frequency systems such as satellite, radar, and unmanned aerial vehicle systems. The lenses designed using existing techniques tend to be at least 5-6 λ long making them infeasible for practical implementations. In this work, we propose a topology that achieves a very high degree of miniaturization by modifying the lumped element transmission line model. Specifically, by introducing mutual inductance terms between the first nearest neighbors in the lumped element model, we realize the meta-TL. The meta-TL can extend the linearity of the dispersion diagram by slowing down the wave within the line and lead to miniaturization. A 1D meta-TL has been designed, fabricated, and characterized demonstrating good transmission performance up to the cut-off frequency.
AB - We present the design and characterization of a linear meta-transmission line (meta-TL) suitable for realizing hyper-compact Rotman lenses. Rotman lenses are true time delay beamforming networks that usually find applications in very-/ultra-high frequency systems such as satellite, radar, and unmanned aerial vehicle systems. The lenses designed using existing techniques tend to be at least 5-6 λ long making them infeasible for practical implementations. In this work, we propose a topology that achieves a very high degree of miniaturization by modifying the lumped element transmission line model. Specifically, by introducing mutual inductance terms between the first nearest neighbors in the lumped element model, we realize the meta-TL. The meta-TL can extend the linearity of the dispersion diagram by slowing down the wave within the line and lead to miniaturization. A 1D meta-TL has been designed, fabricated, and characterized demonstrating good transmission performance up to the cut-off frequency.
KW - dispersion
KW - meta transmission line
KW - miniaturization
UR - http://www.scopus.com/inward/record.url?scp=85172420858&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85172420858&partnerID=8YFLogxK
U2 - 10.1109/USNC-URSI52151.2023.10238073
DO - 10.1109/USNC-URSI52151.2023.10238073
M3 - Conference contribution
AN - SCOPUS:85172420858
T3 - IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
SP - 797
EP - 798
BT - 2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/URSI 2023 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
Y2 - 23 July 2023 through 28 July 2023
ER -