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Dual-band dual-linearly polarized transmitarray at Ka-band

Abstract : We present here the design and the optimization of a dual-band dual linearly-polarized transmitarray antenna with a 1-bit phase resolution (i.e. two phase states with 180° of relative phase-shift). The antenna operates in both downlink and uplink K/Ka-bands (17-21 GHz for the lower frequency band, and 27-31 GHz for the upper one) and could be used for satellite communication applications. In order to implement dual-band and dual-polarization, the unit-cell consists of four orthogonal superposed U-slotted patch antennas interconnected by a metallized via hole. A 20x20 transmitarray based on the proposed unit-cell architecture has been optimized by using our in-house tool and validated through full-wave electromagnetic simulations. The 5x5 mm² unit-cell size allows beam scanning over large field of view (up to 80 deg.). A maximum gain of 23.4 and 21.4 dBi has been achieved at 29.1 GHz and 19.5 GHz, respectively. The gain 1-dB bandwidth is equal to 17.4% and 10.5% at the lower and the upper frequency bands, respectively.
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Contributor : Antonio Clemente Connect in order to contact the contributor
Submitted on : Monday, April 11, 2022 - 1:29:24 PM
Last modification on : Wednesday, May 4, 2022 - 3:07:40 AM
Long-term archiving on: : Tuesday, July 12, 2022 - 6:30:48 PM


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  • HAL Id : cea-03637082, version 1


Reda Madi, Antonio Clemente, Ronan Sauleau. Dual-band dual-linearly polarized transmitarray at Ka-band. EuMW 2020 - European Microwave Week 2020, Jan 2021, Utrecht, Netherlands. ⟨cea-03637082⟩



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