| 摘要 |
PURPOSE:To share a circular polarized wave feeding unit between electromagnetic waves of two different frequencies at the same time and also to manufacture it of simple structure easily by outputting electromagnetic waves of different frequencies, inputted from 1st and 2nd rectangular waveguides, from a circular polarized wave waveguide. CONSTITUTION:As for different signal waves with frequency f2 greater than f1, sections 31 and 41 transmit both waves of f1 and f2 and sections 32 and 42 transmit the wave of f2 while cutting off the wave of f1; and a boundary between sections 31 and 32 reflects the wave of f1 and that between sections 41 and 42 reflects the wave of f2. Here, an electromagnetic wave of frequency f1 inputted to rectangular waveguide 11 is converted into a circular polarized wave, which is outputted from circular polarized wave waveguide 2, and an electromagnetic wave of frequency f2 inputted in the form of a linear polarized wave from rectangular waveguide 12 is also converted into a circular polarized wave in waveguide 2. Consequently, this unit can be shared between two kinds of electromagnetic waves of different frequencies and its manufacture is simplified with its structure simplified. |
