Polarization-independent single-layer ultra-wideband frequency-selective surface

Autor: Balaji Moorthy, Malathi Kanagasabai, Ramprabhu Sivasamy, Livya Lawrance, Jithila V. George, Dinesh Babu Rajendran
Rok vydání: 2015
Předmět:
Zdroj: International Journal of Microwave and Wireless Technologies. 9:93-97
ISSN: 1759-0795
1759-0787
DOI: 10.1017/s1759078715001439
Popis: An ultra-wideband (UWB) frequency-selective surface (FSS) exhibiting band rejection characteristic is presented in this paper. The proposed unit cell has the size of 14 × 14 mm2 which is approximately 0.18 × 0.18 λo, where λo corresponds to free space wavelength at the lower cut-off frequency. The proposed UWB FSS consists of a single-layer substrate and provides 20 dB attenuation level for a wide bandwidth of 7.53 GHz at the normal incidence. The proposed FSS is polarization independent and also provides angular-independent operation for the EM wave incidences of 15°, 30° and 45° with 11.5 dB attenuation over a wide range from 4 to 14 GHz.
Databáze: OpenAIRE