Please use this identifier to cite or link to this item:
http://hdl.handle.net/10071/16899| Author(s): | Cruz, C. C. Fernandes, C. A. Matos, S. A. Costa, J. R. |
| Date: | 2018 |
| Title: | Phase-only shaped beam transmit-array |
| Keywords: | Transmit-arrays Planar lens antennas Radiation pattern shaping Geometrical Optics Secant squared power pattern |
| 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 |
| Peerreviewed: | yes |
| Access type: | Open Access |
| Appears in Collections: | IT-CRI - Comunicações a conferências internacionais |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Phase-only Shaped Beam Transmit-Array.pdf | Pós-print | 459,09 kB | Adobe PDF | View/Open |
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