1-Bit Reconfigurable Unit Cell for Ka-Band Transmitarrays
Abstract
This letter presents an electronically reconfigurable, linearly polarized unit cell for transmitarray applications in Ka-band. A 1-bit phase resolution (namely with two phase states 0 ° and 180 °) is obtained using two p-i-n diodes mounted on a slot-loaded patch antenna. The design, realization, and experimental characterization in a standard waveguide simulator are reported. The measured insertion losses only reach 1.09 and 1.29 dB for the two-phase states, respectively, with a 3-dB transmission bandwidth of about 11.2%
Keywords
Antennas
Bandwidth
Beamforming
beam-steering
discrete lens
Frequency measurement
Insertion loss
Ka-band transmitarrays
linear polarized unit cell
microstrip antenna arrays
phase resolution
p-i-n diodes
Propagation losses
reconfigurable antenna
Scattering parameters
slot antenna arrays
slot-loaded patch antenna
standard waveguide simulator
transmitarray
Transmitting antennas