Miniaturized Frequency Selective Surface Using Handshake Convoluted Stripe

Inductively coupled triple layers of ultra‐miniaturized frequency selective surface for L‐band applications

“…By adopting this inductive coupling methodology, the FSS unit cell size is 89%, 29%, 65%, 87%, 41%, 98%, 92%, 88%, 36%, 85%, and 400% smaller on comparing to literatures. [1][2][3][4][5][6][7][8][9][10]16 • The proposed FSS gives a stable response with a wide operating bandwidth of 400 MHz for various incident angles of EM waves up to 60 . Whereas the work demonstrated in the literature [1][2][3][4][5][6][8][9][10][11][12][13][14] provides partial angular stability and lower operational bandwidth for the lower resonant frequency.…”

“…[1][2][3][4][5][6][7][8][9][10]16 • The proposed FSS gives a stable response with a wide operating bandwidth of 400 MHz for various incident angles of EM waves up to 60 . Whereas the work demonstrated in the literature [1][2][3][4][5][6][8][9][10][11][12][13][14] provides partial angular stability and lower operational bandwidth for the lower resonant frequency. • The proposed FSS is simple and less expensive because of employing low-cost FR4 dielectric material as a substrate.…”

“…Whereas, the FSS reported in the literature 2-6,9-16 uses expensive dielectric material. • The designed FSS is rotational symmetry and thus seems to be polarization insensitivity and angularly stable, while the FSS demonstrated in References [1][2][3][4], [8][9][10], and [10,11] are asymmetric, hence their resonance characteristics changes with the incidence angle of wave and on the orientation of FSS. • The reported FSS can be easily redesigned for changing over its resonant frequency between 1 and 5 GHz by simply varying the length of the convoluted structure in each of three layers.…”

“…The researchers in Reference 1 achieve miniaturization by coupling two meandered wire resonators separated by a single thin substrate layer. The FSS in Reference 2 uses handshake‐convoluted strips realized on both sides of the substrate with orthogonal positioning to achieve miniaturization. The research work in Reference 3 uses four first‐order interconnected Hilbert fractals on both sides of the FSS.…”

Polarization Insensitive and Transparent Frequency Selective Surface for Dual Band GSM Shielding

“…For example, [23] combines meandering and inter-layer coupling to increase stable incident angle range up to 80º, but the asymmetrical patterns show performance deviation for TE and TM polarizations. In [24], the authors propose a meandered handshake design to reduce the unit size and increase angular stability, but the single layer pattern is only 180º symmetric, showing different responses for TE and TM polarized waves. The polarization insensitivity has been achieved by adding another layer with 90º rotated pattern.…”