Português
Ciência-IUL
Publications
Publication Detailed Description
2018 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting
Year (definitive publication)
2018
Language
English
Country
United States of America
More Information
--
Web of Science®
Scopus
Google Scholar
Abstract
A new analytical formulation is presented in this paper to obtain the phase correction function for planar transmitarrays, to produce a prescribed amplitude template. This phaseonly design enables using high transmission unit cells to favor maximum gain. Here, a transmit-array transforms the known power radiation pattern of the primary source into a desired output power pattern. As a proof of concept, two different output power radiation patterns are presented, namely, a sec2 with a roll-off at 45º and a flat-top with 20º of roll-off, at the 30 GHz Ka-band. The transmit-array aperture is 180 mm × 180 mm, with 60 mm focal length. It is illuminated by a 10.8 dBi feed radiation pattern, with circular polarization
Acknowledgements
--
Keywords
Transmit-arrays,Planar lens antennas,Radiation pattern shaping,Geometrical Optics,Secant squared power pattern
Fields of Science and Technology Classification
- Physical Sciences - Natural Sciences
Funding Records
| Funding Reference | Funding Entity |
|---|---|
| UID/EEA/50008/2013 | Fundação para a Ciência e a Tecnologia |
