Thin-film slot antennas for 2.5 THz submillimeter radiation were fabricated by the photolithographic method on a fused quartz substrate. The antenna properties were investigated by measuring the antenna patterns for 2.5 THz CH3OH laser radiation. It was found that the fabricated antennas work as receiving antennas at 2.5 THz. The measured antenna patterns agreed with the theoretical antenna patterns in free space despite the dielectric substrate.
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Shimizu et al. (1996) studied this question.
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