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

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...

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Published in	IEEE access Vol. 8; pp. 114991 - 114997
Main Authors	Clemente, Antonio, Diaby, Fatimata, Palma, Luca Di, Dussopt, Laurent, Sauleau, Ronan
Format	Journal Article
Language	English
Published	Piscataway IEEE 2020 The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects	Apertures beam forming beam steering Current measurement discrete lens Electromagnetic waveguides electronically steerable antenna Engineering Sciences Integrated circuit modeling Ka-band P-i-n diodes Patch antennas PIN diodes Quantization (signal) Reconfiguration Substrates Transmission loss Transmitarray antennas Unit cell Waveguides electronically steerable antenna beam forming beam steering discrete lens Ka-band Transmitarray antennas
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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%.
AbstractList	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%.
Author	Diaby, Fatimata Palma, Luca Di Sauleau, Ronan Clemente, Antonio Dussopt, Laurent
Author_xml	– sequence: 1 givenname: Antonio orcidid: 0000-0003-4623-952X surname: Clemente fullname: Clemente, Antonio email: antonio.clemente@cea.fr organization: Université Grenoble-Alpes, Grenoble, France – sequence: 2 givenname: Fatimata surname: Diaby fullname: Diaby, Fatimata organization: Université Grenoble-Alpes, Grenoble, France – sequence: 3 givenname: Luca Di surname: Palma fullname: Palma, Luca Di organization: Université Grenoble-Alpes, Grenoble, France – sequence: 4 givenname: Laurent surname: Dussopt fullname: Dussopt, Laurent organization: Université Grenoble-Alpes, Grenoble, France – sequence: 5 givenname: Ronan surname: Sauleau fullname: Sauleau, Ronan organization: CNRS, Institut d'Électronique et de Télécommunications de Rennes (IETR), University of Rennes 1, Rennes, France
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Keywords	electronically steerable antenna beam forming beam steering discrete lens Ka-band Transmitarray antennas
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SubjectTerms	Apertures beam forming beam steering Current measurement discrete lens Electromagnetic waveguides electronically steerable antenna Engineering Sciences Integrated circuit modeling Ka-band P-i-n diodes Patch antennas PIN diodes Quantization (signal) Reconfiguration Substrates Transmission loss Transmitarray antennas Unit cell Waveguides
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Title	Experimental Validation of a 2-Bit Reconfigurable Unit-Cell for Transmitarrays at Ka-Band
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