Wideband low-loss linear and circular polarization transmit-arrays in V-band
Abstract
Several linearly-polarized and circularly-polarized transmit-arrays are designed and demonstrated in the 60-GHz band. These arrays have a fairly simple structure with three metal layers and are fabricated with a standard printed-circuit board technology. The simulation method is based on an electromagnetic model of the focal source and the unit-cells, associated to an analytical modeling of the full structure. A theoretical analysis is presented for the optimization of the power budget with respect to the F / D ratio. Several prototypes are designed and characterized in V -band. The experimental results are in very good agreement with the simulations and demonstrate very satisfactory characteristics. Power efficiencies of 50-61% are reached with a 1-dB gain bandwidth up to 7%, and low cross-polarization level.
Keywords
printed-circuit board technology
electromagnetic model
Antenna radiation patterns
gain 1 dB
efficiency 50 percent to 61 percent
electromagnetic wave polarisation
wideband low-loss linear
circular polarization transmit-arrays
theoretical analysis
power budget optimization
frequency 60 GHz
Gain
Propagation losses
printed circuits
millimetre wave circuits
millimetre wave antennas
Antenna arrays
Transmitting antennas
Wideband
Polarization
Discrete lens
unit-cell
millimeter-wave antennas
transmit-array
V-band