Journal
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
Volume 7, Issue -, Pages 187-191Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LAWP.2008.920906
Keywords
lens; reflection; refraction; transmission line
Funding
- Academy of Finland
- TEKES
- Finnish Graduate School in Electronics, Telecommunications and Automation (GETA)
- Finnish Society of Electronics Engineers (EIS)
- Nokia Foundation
- Jenny and Antti Wihuri Foundation
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A microwave lens with highly reduced reflectance, as compared to conventional dielectric lenses, is proposed. The lens is based on two-dimensional or three-dimensional transmission-line networks that can be designed to have an effective refractive index larger than one, while having almost perfect impedance matching with free space. The design principles are presented and an example lens is studied using commercial simulation software.
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