Koby Asirvatham

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In this paper, a design of a series-fed microstrip array with composite right-/left-handed transmission lines (CRLHTLs) is being proposed. To ensure that each element in the array is driven with the same voltage phase, dual-band CRLHTLs are adopted instead of meander-line microstrip lines to provide a compact interconnect with a zero phase-constant at the(More)
In this paper, a novel wideband planar antenna is presented. The regular microstrip-fed dipole antenna is modified to improve the frequency bandwidth. The bandwidth enhancement mechanism is investigated with simple lumpedelement circuit theory. This “segmented-ring” antenna is realized on a high dielectric substrate. This antenna achieves a measured 120%(More)
Using amplitude tapering to improve the radiation pattern of a conformal antenna on a surface that changes shape with time has been studied and is presented in this paper. In particular, a six element array was attached to a wedge-shape conformal surface with bend angles 10 degrees, 20 degrees, 30 degrees, 40 degrees, 45 degrees and 50 degrees and the(More)
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