H. Kubo et al., RADIATION CHARACTERISTICS OF HE(11)-TYPE WAVE FROM DIELECTRIC ROD ANTENNA WITH PERIODIC SURFACE, IEEE transactions on antennas and propagation, 44(8), 1996, pp. 1063-1066
The radiation characteristics of HE(11)-type wave in periodic rod wave
guides is studied theoretically and experimentally, Based on the analy
sis results, a periodic rod antenna is designed and fabricated, The ra
diation pattern of the fabricated antenna is in reasonable agreement w
ith the calculated values excluding the angles near the antenna axis,
It is shown that a linearly polarized conical beam or a circularly pol
arized conical beam are radiated from the antenna.