TY - GEN
T1 - Frequency-Selective Rasorber with Stable Transmission Amplitude and Insertion Phase Delay
AU - Hu, Xiao Jian
AU - Jin, Cheng
AU - Shen, Zhongxiang
N1 - Publisher Copyright:
© 2026 IEEE.
PY - 2026
Y1 - 2026
N2 - This paper presents a frequency-selective rasorber (FSR) with stable transmission amplitude and insertion phase delay. Two lossy layers with different dimensions can be used to absorb low-frequency and high-frequency incident waves, respectively, achieving an absorption bandwidth from 3 GHz to 18.7 GHz. For the bandpass response of the FSR, the interconnected loop and grid patterns stabilize the transmission amplitude and insertion phase delay, respectively. Simulation results show that the proposed FSR achieves an improved insertion phase delay compared to a dielectric radome of 8.4 mm thickness under the oblique incident angle from 0° to 60° at 12 GHz. Owing to its perfect symmetry, the FSR maintains identical insertion phase delay stability for transverse magnetically polarized waves in the x o z - and y o z-planes. Measurements of the fabricated FSR show good agreement with the simulation ones.
AB - This paper presents a frequency-selective rasorber (FSR) with stable transmission amplitude and insertion phase delay. Two lossy layers with different dimensions can be used to absorb low-frequency and high-frequency incident waves, respectively, achieving an absorption bandwidth from 3 GHz to 18.7 GHz. For the bandpass response of the FSR, the interconnected loop and grid patterns stabilize the transmission amplitude and insertion phase delay, respectively. Simulation results show that the proposed FSR achieves an improved insertion phase delay compared to a dielectric radome of 8.4 mm thickness under the oblique incident angle from 0° to 60° at 12 GHz. Owing to its perfect symmetry, the FSR maintains identical insertion phase delay stability for transverse magnetically polarized waves in the x o z - and y o z-planes. Measurements of the fabricated FSR show good agreement with the simulation ones.
UR - https://www.scopus.com/pages/publications/105051031096
U2 - 10.1109/AP-S/USNC-URSI60190.2026.11675573
DO - 10.1109/AP-S/USNC-URSI60190.2026.11675573
M3 - Conference contribution
AN - SCOPUS:105051031096
T3 - IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
SP - 1884
EP - 1886
BT - 2026 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/USNC-URSI 2026 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2026 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/USNC-URSI 2026
Y2 - 12 July 2026 through 17 July 2026
ER -