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Hace 13 horas · 4995 MHz 8-turn helical antenna When tuning, it was possible to achieve a standing wave ratio of 1.05 You can mirror this antenna around the xy axes to change the polarization M3 hole at the bottom of the antenna Calculated data: Wavelength λ: 60 mm Helical length l: 120 mm Total wire length lw: 524 mm Inner diameter of helix d: 20.3 mm Helical pitch (between the centers of adjacent turns) s ...