Coupling of a circularly polarized slot pair on a corrugated waveguide of finite length

抄録

We analyze a circularly-polarized slot pair on a hollow rectangular waveguide of finite length with corrugations on the bottom by the method of moments. The analysis is for designing a radial line slot antenna for high-power or space applications. The reflection from the end of the corrugation array gives ripples in the slot coupling for the relative position of the slot pair but the ripples are so small that averaging of the slot coupling is acceptable for practical design of the antenna.