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Experimental Validation of a 2-Bit Reconfigurable Unit-Cell for Transmitarrays at Ka-Band

Abstract : This paper presents the experimental results of a 2-bit electronically reconfigurable unit-cell for transmitarrays at Ka-band. The proposed unit-cell architecture is based on a six-metal layers design and three dielectric substrates. Two patch antennas are printed respectively on the top and bottom layers of the stack-up to achieve an antenna-filter-antenna structure. To implement the desired 2-bit phase resolution, two p-i-n diodes are bonded on each patch. The unit-cell has been fabricated and characterized in a specific waveguide simulator. The measurement results are compared to the simulated ones and show minimum transmission loss in the range 1.5 - 2.3 dB. The 3-dB fractional bandwidth is in the range 10.1 - 12.1%.
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https://hal.archives-ouvertes.fr/hal-02927466
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Submitted on : Thursday, September 24, 2020 - 2:42:02 PM
Last modification on : Wednesday, April 27, 2022 - 4:01:48 AM
Long-term archiving on: : Thursday, December 3, 2020 - 5:04:45 PM

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Antonio Clemente, Fatimata Diaby, Luca Di Palma, Laurent Dussopt, Ronan Sauleau. Experimental Validation of a 2-Bit Reconfigurable Unit-Cell for Transmitarrays at Ka-Band. IEEE Access, 2020, 8, pp.114991-114997. ⟨10.1109/ACCESS.2020.3003698⟩. ⟨hal-02927466⟩

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