A Wideband Reconfigurable Transmitarray Element

By J. Y. Lau, Sean Victor Hum. IEEE Transactions on Antennas and Propagation, 2012

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Circularly-Polarized Reconfigurable Transmitarray in Ka-Band With Beam Scanning and Polarization Switching Capabilities (2017, methodology): “8(d)] [8] are used, one for each quarter of the transmitarray.”
Reconfigurable Reflectarrays and Array Lenses for Dynamic Antenna Beam Control: A Review (2013, methodology): “However, the increased electrical distance not only increases the physical thickness of the lens, it also introduces an inter-layer coupling mechanism which has been shown to potentially lead to spurious radiation in undesired directions [95].”
Using Reconfigurable Transmitarray to Achieve Beam-Steering and Polarization Manipulation Applications (2015, methodology): “Based on the calculation method well described in [5], three Tx patch antennas with a space of 26.”
A Beam Steering Horn Antenna Using Active Frequency Selective Surface (2013, background): “6 dB of loss over a fractional bandwidth of 10% [27].”
Wideband 400-Element Electronically Reconfigurable Transmitarray in X Band (2013, methodology): “MEMS switches [15], [16], varactor diodes [14], [17]–[19], integrated ferroelectric varactors [20] or p-i-n diodes [21] have been used for the design of reconfigurable unit-cells.”
High-Gain and Broadband Transmitarray Antenna Using Triple-Layer Spiral Dipole Elements (2014, background): “4%, respectively, which are considered broadband performances as compared to the published designs in [2] and [8]–[10].”