Tunable Spoof Surface Plasmons Bulleye Antenna

Abstract

A tunable spoof surface plasmons antenna using sinusoidally modulated corrugated reactance surface based on a bulleye structure is proposed in this paper. The designed antenna is made of concentric metallic grooves etched on a metal plate, the depth of which is of sinusoidal periodic variation in the radial direction. This makes it possible that highly confined spoof surface plasmons along corrugated surface can be converted to radiation modes. The proposed bulleye antenna can work from 25.8 to 33 GHz and a bandwidth of 7.2 GHz and its main lobe can be directed at 30 • from the vertical direction at 30 GHz. This antenna has a maximum gain of 15 dB and its main lobe can scan from 14 • to 58 • by tuning the frequency from 28 to 32 GHz.

A hybrid substrate-integrated waveguide and spoof surface plasmon-polariton one-layer dual bandpass filter formed by resonant tunneling effect

“…Thus, the SSPP has been widely used in the design of many microwave and millimeter-wave components, such as transmission lines [5][6][7][8][9] and antennas. [10][11][12][13] With low-pass features and an upper cutoff frequency, SSPP can be used to design novel filters. [14][15][16][17][18][19] Bandpass SSPP filters constructed by periodic subwavelength domino structures with different materials have been proposed.…”