LAGGING ELEMENT OF 1/4 WAVELENGTH AND SWITCHING DEVICE OF DEXTROROTARY-LEVOROTATORY CIRCULARLY POLARIZED WAVE

摘要

PURPOSE:To adjust a position easily by fixing a lagging means on the inside of a cylindrical body consisting of a material having low loss to a microwave signal. CONSTITUTION:The lagging element 60 is constituted by fixing a 1/4 wavelength plate 62 consisting of a material with low loss on the inside of the cylindrical body 61 consisting of the material also having low loss to a microwave signal. the cylindrical body 61 and the 1/4 wavelength plate 62 can be also molded umitedly by using plastic or the like. To constitute a circularly polarized wave generator, the lagging element 60 is inserted into a circular waveguide 63. The cylindrical body 61 is rotated at the inside of the waveguide 63 so that the 1/4 wavelength plate 62 for the lagging element 60 has a fixed angle position to the waveguide 63. By using the 1/4 wavelength lagging element, dextrorotation and levorotation of a circularly polarized wave can be switched simply.