Design and demonstration of a tri‐band frequency selective surface for space applications in X, K, and Ka bands

Abstract

A novel tri‐band frequency selective surface (FSS) is proposed for space antenna systems in the X, K, and Ka bands. The FSS structure is based on a two‐layer configuration, where the unit‐cell elements at each layer consist of two pairs of rectangular‐shaped dipoles and a square ring. The FSS has been designed to be transmissive at 11.5 GHz (X band) and totally reflective at 20 GHz (K band) and 30 GHz (Ka band). The reflection losses in K and Ka bands are less than 0.1 dB for incidence angles varying from 0° to 45°. Also, the transmission losses in X band are less than 0.5 dB for incidence angles of up to 30°. A 30‐cm prototype of the proposed two‐layer FSS has been fabricated and tested. Both simulation and measurement results show a good agreement and a satisfactory performance in the three operating bands.

An ultra‐miniaturized single‐layer multiband frequency selective surface with vent for wireless communication

“…The various methods and structures designed to realize a miniaturized FSS with multiband band stop characteristics are detailed. The existing state achieves miniaturization by increasing the electric length using conductive holes [4][5][6][7] in a miniaturized footprint or by printing the resonators into the top and bottom layers [8][9][10][11][12][13] of the dielectric substrate. In, 4 miniaturization of 0.034 λ օ is achieved by incorporating conductive holes with the four-legged loaded loop element structure to exhibit the stopband at the resonant frequency of 1.056 GHz.…”

“…To achieve miniaturization in, 13 a fractal square loop with a multilayer is designed to stop the resonant frequencies at 900 MHz, 1.8 GHz, and 2.1 GHz, but exhibits a bulkier structure and relatively low angular stability of 60 օ . Abdollahvand et al, 7 designed rectangular‐shaped dipoles and a square ring FSS for X, K, and Ka‐band shielding. The larger size of 0.12λ օ FSS is proposed by Farooq et al, 16 for the triband resonance at 1.8 GHz, 2.5 GHz, and 5.6 GHz.…”

Design and characteristic analysis of uniplanar multiband frequency selective surface for GSM, LTE, WLAN, ISM, WiMAX and X‐band applications

“…Yin et al 4 reported a new multiband FSS of unit cell size 0.07 λ c × 0.07 λ c to cover dual passbands at 0.75–1.1 and 1.7–2.1 GHz with resonances at 900 and 1800 MHz, respectively. Abdollahvand et al 5 reported dual stopband FSS of unit cell size 0.33 λ c × 0.33 λ c to offer the stopbands at 15.7–22.95 and 28.6–30.65 GHz. Farooq et al 6 presented a very small‐sized FSS of dimension 07 λ c × 0.07 λ c to resonates at 2.5 and 5.45 GHz.…”

Design of a triple band notched polarization independent compact FSS at UWB frequency range

“…Some approaches that provide compact multiband FSS are summarized as: fractal elements, 14 perturbed elements, 15 convoluted elements, 16 multilayer FSS elements 17 and multi resonant elements. 18 Fractal and convoluted element FSS are complex to design and difficult to fabricate.…”