RT Journal Article
T1 Broadband linear-to-circular polarizing reflector for space applications in Ka-band
A1 Martinez de Rioja, Eduardo
A1 Encinar, Jose A.
A1 Pino García, Antonio
A1 Rodríguez Vaqueiro, Yolanda
K1 3325.06 Comunicaciones Por Satélite
AB This communication presents a novel low-profile broadband polarizing reflector to convert dual linear polarization (LP) into dual circular polarization (CP). The polarizing cell is based on printed dipole technology and presents a wideband performance in Ka-band. The dimensions of the printed dipoles are adjusted cell by cell to improve the reflection phase performance against variations in the incidence angles or in the cell dimensions. A 25-cm flat polarizing reflector demonstrator has been designed, fabricated and tested. The design has been optimized for transmit (19.2-20.2 GHz) and receive (29-30 GHz) frequencies in Kaband, but the broadband behavior of the cell provides satisfactory results also at the intermediate frequencies. The measured patterns show a good agreement with the simulations, with an axial ratio lower than 1.8 dB within the 19.2-30 GHz band. The proposed polarizing reflector can be used for novel multibeam antenna configurations to produce multi-spot coverage in Ka-band with a smaller number of apertures.
PB IEEE Transactions on Antennas and Propagation
SN 0018926X
YR 2020
FD 2020-09
LK http://hdl.handle.net/11093/5413
UL http://hdl.handle.net/11093/5413
LA eng
NO IEEE Transactions on Antennas and Propagation, 68(9): 6826-6831 (2020)
NO Agencia Estatal de Investigación | Ref. TEC2016-75103-C2-1-R
DS Investigo
RD 20-mar-2025