A Circularly Polarized Antenna With Wide Axial Ratio Beamwidth

By K. Mak, Kwai-Man Luk. IEEE Transactions on Antennas and Propagation, 2009

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Crossed Dipole Antennas: A review. (2015, methodology): “Excitation can be accomplished by employing a feeding network, such as a turnstile network [22], Wilkinson power divider [24], microstrip line to doubleslot line transmission [25], T-junction power divider [26]–[28], or Wilkinson power divider with two stubs [29].”
A Low-Profile Wideband Circularly Polarized Crossed-Dipole Antenna With Wide Axial-Ratio and Gain Beamwidths (2018, background): “simultaneously with the same amplitude and quadrature phase, CP radiation patterns with a wide 3 dB ARBW can be achieved [11], [30].”
60 GHz Plated Through Hole Printed Magneto-Electric Dipole Antenna (2012, background): “Many studies [13]–[16] based on this ME-dipole have been reported including extension to a dual-polarized antenna [16] for mobile communications, a circularly-polarized antenna [17] for satellite broadcast services, and a very wideband antenna [18] for WLAN systems.”
Dual-Band Circularly Polarized Cavity-Backed Annular Slot Antenna for GPS Receiver (2012, background): “With dual feeds, the input signals can be generated with a more complicated feeding structure via a hybrid or a Wilkinson power divider [6], [7].”