Accurate theory for a new leaky-wave antenna for millimeter waves using nonradiative dielectric waveguide

An almost rigorous analysis is presented for a new leaky-wave antenna of simple configuration. The new structure is based on a recent nonradiative modification of H guide and is suitable for millimeter wavelengths. The analysis employs a transverse equivalent network that yields a dispersion relation in closed form. Numerical values are presented for the phase and leakage constants and for a typical example of antenna performance.