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Low profile cavity-backed four-arm Archimedean spiral antenna with 8:1 bandwidth
Unidirectional radiation control of quantum emitters coupled to spiral nano- antennas using optoelectronic material in near-infrared - ScienceDirect
Logarithmic spiral - Wikipedia
Comparison of dipole, bowtie, spiral and log-periodic IR antennas - ScienceDirect
Spiral Antenna
Spiral Antenna Design Considerations, 2013-01-15
Spiral Antenna Cuts Low Profile To 9.4 GHz
A low-profile wideband compressed single-arm spiral antenna array for mid-band 5G beam steering applications
Utility metric for unsupervised feature selection [PeerJ]
A Wideband Circularly Polarized Conical Beam From a Two-Arm Spiral Antenna Excited in Phase