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A novel design is presented for a beam waveguide feed. This design incorporates two stages of beam magnification to achieve the required illumination of the sub-reflector from a corrugated horn of moderate gain. Along with the ellipsoidal mirror in a conventional system, another hyperboloid mirror is incorporated for this purpose. The magnification that needs to be achieved is distributed between these two mirrors. This results in compact mechanical design and adds flexibility to the pedestal room optics. The design steps of the magnifying mirrors specifically the hyperboloid mirror and the design results of this new configuration are presented here. [ABSTRACT FROM PUBLISHER]

A novel design of dielectric rod antenna is presented here. Compared to the conventionally used tapered dielectric antennas, this configuration is capable of producing higher gain for a given length of the antenna. The design of an antenna using the new configuration having a gain of 16.7 dBi at 5.6 GHz is discussed. The length of this antenna is 2.3 \lambda0, which is considerably less compared to the conventional design. The material used for the antenna is Teflon. Along with the detail simulated results, the measured results of the fabricated prototype antenna are also presented. [ABSTRACT FROM AUTHOR]