Embedded Files
Material Properties: Carbonly-Iron Powder(CIP)
<CIP substrate: Broad loss @Ku/Ka-bands>
<CIP substrate: Broad loss @Ku/Ka-bands>
<Fabrication Process>
<Fabrication Process>
<SEM & Spectroscopy Analysis>
<SEM & Spectroscopy Analysis>
Material Properties: M-type Ferrites
<M-type Ferrite: FMR @ 36 GHz>
<M-type Ferrite: FMR @ 36 GHz>
<M-type Ferrite: FMR @ 36 GHz>
<M-type Ferrite: FMR @ 36 GHz>
<M-type Ferrite: FMR @ 36 GHz>
<M-type Ferrite: FMR @ 36 GHz>
Design & Modeling of Broadband Magnetic Material-based Absorber
Reference
Reference
*N. Ha, et. al, “Design and Analysis of Ultra-Wideband Multi-layered Electromagnetic Absorber using Carbonyl Iron Magnetic Substrate and Planar Periodic Conductive Structure for mmWave Applications,” IEEE Trans. Antennas Propag., vol.72, no.2, pp.1648-1660, Feb. 2024.
*N. Ha, et. al, “A Hole-Patterned Carbonyl Iron Powder/Epoxy Composite Millimeter-Wave Electromagnetic Absorber Operating at the Ka-Band,” IEEE Trans. Electromagn. Compat., vol.65, no.4, pp.997-1007, Aug. 2023.
Reflectsorber: Modulated Dual-functional Metasurface
Reflectsorber
Unit-cell design
EM Absorption: 70 ~ 80 GHz
Reflectarray: 52 ~ 55 GHz
Rasorber for Automative Radar
False images can be caused by distorted waves passing through the car bumper or complex metal structures within a vehicle.
Therefore, a frequency-selective rasorber (FSR) is necessary to reduce RF noise and improve the performance of automotive radar systems.
Proposed FSR has a passband at the 24 GHz range and also can absorb unwanted signals in the surrounding side bands. Implementing this FSR design can eliminate false images in radar systems and enhance their performance.
Tuning FMR with Magnetic Bias
RCS Reduction: 77GHz Automotive Radar
RCS reduction using ferrite
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