Investigation of several terahertz electromagnetic band gap structures

Abstract

Several THz electromagnetic band gap (EBG) structures are investigated and demonstrated. Various design, fabrication, and characterization methods and techniques are utilized and compared. These THz EBG structures may enable future high performance EBG based THz components.

Photonic crystal assisted multiband compact terahertz antenna on engineered silicon‐on‐insulator

“…Proper selection of the t g value is necessary in determining multiband low‐loss operation of the antenna. The proposed photonic crystal based device being a planar (on‐chip) design can be tested with the conventional methods which can be flexibly fitted with the configurations such as THz time domain spectroscopy (THz‐TDS), far‐infrared Fourier transform spectroscopy and vector network analyser [36–38].…”

Design of dual‐mode dual‐band photonic crystal bandpass filters for terahertz communication applications

“…Several functions like filters, couplers, and multiplexers have already been designed using localized defect modes in PhC [1]. Yet, the need for high speed and high data rate communication systems leads to an increased attention to terahertz (THz) frequencies [2][3][4]. The micrometers order lattice constant of PhC is very convenient for conventional manufacturing methods and applicable for applications in THz range [5].…”

“…Compact dual-band microstrip antennas are much in demand nowadays, as such antennas facilitate integration of different radio modules into the same piece of equipment [1]. The use of defected ground structures (DGSs) is one currently popular method used to reduce the design size of microstrip antennas (e.g., [2][3][4][5][6][7][8][9][10][11]). This article proposes a new symmetrical printed monopole antenna using multiple rectangular DGSs, for dualband operation at GSM and Wi-Fi bands.…”

“…This article proposes a new symmetrical printed monopole antenna using multiple rectangular DGSs, for dualband operation at GSM and Wi-Fi bands. The presence of the DGS perturbs the current distribution in the ground plane, and thus, modifies the equivalent transmission line parameters over the defected regions [2][3][4]. Put differently, the DGS uses its slow-wave characteristics to reduce the size of the design.…”