Abstract
A new variety of the Fresnel zone planar lens with enhanced focusing quality is proposed. Each full-wave zone is divided into four quarter-wave subzones, which are covered by dielectric rings having equal thickness but different permittivities. Based on this planar lens configuration, a transmissive-type Fresnel-zone antenna for DBS-reception with more than 50% aperture efficiency is developed and examined theoretically
Original language | English |
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Pages (from-to) | 249-251 |
Number of pages | 3 |
Journal | IEEE Microwave and Guided Wave Letters |
Volume | 5 |
DOIs | |
Publication status | Published - 1995 |