CST – Computer Simulation Technology

Rectangular Tapered Polyrod Antenna

Image of the Rectangular tapered polyrod antenna Image of the Rectangular tapered polyrod antenna

Dielectric-rod antennas, also known as Polyrod antennas, are regarded as a type of surface-wave antenna. While a wide range of configurations are possible for dielectric-rod antennas, in most cases they have a tapered rod of circular or rectangular cross section. This particular implementation has a rectangular cross-section and a sectional taper in the E-plane only. The feeding waveguide couples part of the input power into a surface wave which travels along the dielectric rod with minimal reflection. The surface wave then continuously radiates as it travels along, gradually transforming from a strongly bounded wave to a free-space wave.

Typical pattern performance of the rectangular tapered polyrod Typical pattern performance of the rectangular tapered polyrod Typical S11 performance of the rectangular tapered polyrod Typical S11 performance of the rectangular tapered polyrod

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