Dual polarised wideband metamaterial radar absorbing screen based on resistive Hilbert curve array
Authors:
- 15 January 2009
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 45 (2) , 130-131
Abstract
A novel thin metamaterial wideband radar absorber formed by two layers of resistive Hilbert curve arrays is reported. HFSS simulations reveal a reduction in the monostatic radar cross-section of more than 10 dB from 8 to 18.8 GHz (81% fractional bandwidth) for Ex and 9.1 to 20.7 GHz (78% fractional bandwidth) for Ey polarisations, respectively. This bandwidth is significantly wider than those reported so far for space filling curve array based absorbers. The structure has a thickness of only 0.17λ at fo (14.2 GHz). The lateral dimensions are only 0.2λ×0.2λ per unit cell at fo, which is several times smaller than that of recently reported circuit analogue absorbers operating in the similar frequency band, thus suppressing diffraction effects.Keywords
This publication has 5 references indexed in Scilit:
- Wideband radar absorbing material combining high-impedance transmission line and circuit analogue screenElectronics Letters, 2008
- A Thin and Broadband Absorber Using Double-Square LoopsIEEE Antennas and Wireless Propagation Letters, 2007
- Simple design of thin and wideband circuit analogue absorberElectronics Letters, 2007
- Metamaterial Electromagnetic Cloak at Microwave FrequenciesScience, 2006
- High impedance metamaterial surfaces using Hilbert-curve inclusionsIEEE Microwave and Wireless Components Letters, 2004