340-GHz SIW Cavity-Backed Magnetic Rectangular Slot Loop Antennas and Arrays in Silicon Technology
PROJECT TITLE :
A 340-GHz on-chip antenna (OCA) with high-gain and high-radiation potency is intended using a commonplace $0.13hbox-upmu rm m$ SiGe BiCMOS technology without any postprocesses. In the proposed OCA structure, an oblong slot loop is etched within the higher wall of a substrate integrated waveguide (SIW) to form a magnetic current loop radiator. The SIW structure forms a back cavity to suppress the surface waves and separate the radiation aperture from the low-resistivity substrate. Furthermore, the aspect wall of the SIW cavity and the sting of the slot kind a $lambda _g/four$ resonator to reflect the facility back to the slot loop. So, the radiation potency is improved. By etching a slot properly within the SIW upper wall, another resonating point is constructed and hence, the bandwidth is broadened. Single antenna part and a $2 times 2$ array are each designed and fabricated with- and without- the slot structure; a most gain of seven.9 dBi with the radiation efficiency of 48% at 340 GHz is achieved for the proposed SIW cavity-backed antenna structure.
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