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Evaluation of Spiral Monopole Antenna Arrays for Human Brain Imaging at 7 Tesla
Myung Kyun Woo
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Pattern reconfigurable quasi Yagi antenna with Origami inspired magic spiral cubes for dynamic indoor IoT applications. [PDF]
Sci RepShah SS +5 more
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Infrared beam-shaping on demand via tailored geometric phase metasurfaces employing the plasmonic phase-change material In<sub>3</sub>SbTe<sub>2</sub>. [PDF]
Nat CommunConrads L +7 more
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Laser-fabricated reconfigurable PT-symmetric sensors for wireless health monitoring of CFRP structures. [PDF]
Microsyst NanoengYue W, Guo Y, Zhang Y, Zhao Z, Zang X.
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Spiral antennas and antenna arrays
2005 IEEE Antennas and Propagation Society International Symposium, 2005The planar square-Archimedean spiral located at the center of a dipole has been demonstrated as a valuable passive antenna element in the upper MM-wave and THz regions between about 100 GHz and 2 THz (Bjarnason, E. et al., Appl. Phys. Lett., vol.85, p.3983, 2004).
R.M. Bilotta, E.B. Brown
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IRE International Convention Record, 2005
A simplified description of the radiation mechanism of the spiral antenna is given, and the effects of the various parameters on the characteristics of the cavity-backed Archimedian spiral are discussed. Experimental data illustrating the effect of cavity diameter, cavity depth, conductor loading, and spiral rate of growth are offered as design guides.
R. Bawer, J. Wolfe
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A simplified description of the radiation mechanism of the spiral antenna is given, and the effects of the various parameters on the characteristics of the cavity-backed Archimedian spiral are discussed. Experimental data illustrating the effect of cavity diameter, cavity depth, conductor loading, and spiral rate of growth are offered as design guides.
R. Bawer, J. Wolfe
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2011 IEEE International Symposium on Antennas and Propagation (APSURSI), 2011
A coplanar spiral antenna (CSAT) in free space is analyzed using the finite-difference time-domain method. It is found that the CSAT radiates a circularly polarized wave over a relatively wide frequency range (13%). The gain is found to be an approximately 4.8 dBi. Subsequently, a CSAT with a glass plate is investigated.
H. Nakano +3 more
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A coplanar spiral antenna (CSAT) in free space is analyzed using the finite-difference time-domain method. It is found that the CSAT radiates a circularly polarized wave over a relatively wide frequency range (13%). The gain is found to be an approximately 4.8 dBi. Subsequently, a CSAT with a glass plate is investigated.
H. Nakano +3 more
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2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, 2019
The paper presents the bow-spiral antenna, a hydride design which integrates the geometry structure of an exponential bow-tie into an Archimedean spiral antenna in order to reduce its high input impedance.
Thi M. D. Tran, Marc Piette
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The paper presents the bow-spiral antenna, a hydride design which integrates the geometry structure of an exponential bow-tie into an Archimedean spiral antenna in order to reduce its high input impedance.
Thi M. D. Tran, Marc Piette
openaire +1 more source