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Super-Directive Antenna Arrays: Fundamentals and New Perspectives
Asilomar Conference on Signals, Systems and Computers, 2019Wireless power transfer between an array of antennas and a single-antenna terminal is governed by matrix circuit theory. A complex-valued, non-conjugate symmetric impedance matrix constitutes a complete quantitative description of the system.
T. Marzetta
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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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Array-antenna decoupling surfaces for quasi-yagi antenna arrays
2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, 2017A novel decoupling method for a quasi-Yagi antenna array using partial reflection metal strips is proposed. These reflection metal strips, a kind of Array-antenna Decoupling Surface (ADS), can be designed to cancel the unwanted coupled waves among adjacent antenna elements.
Changning Wei, Ke-Li Wu
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Polarization Sensitivity of Antenna Arrays
IEEE Transactions on Signal Processing, 2019The manifold of an array with identical antennas is generally assumed to be insensitive to the polarization of the impinging signal except for a complex scale factor which only affects the signal amplitude.
B. Friedlander
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2011 International Workshop on Antenna Technology (iWAT), 2011
This paper compares the performances of ultra wideband (UWB) arrays that use sinusoidal waveform for power pattern and ultra-short pulse waveform for energy pattern. In general, antenna arrays cannot have element spacing larger than one wavelength in any plane because the resulting grating lobes absorb much power, which will limit the bandwidth of ...
Dau-Chyrh Chang +2 more
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This paper compares the performances of ultra wideband (UWB) arrays that use sinusoidal waveform for power pattern and ultra-short pulse waveform for energy pattern. In general, antenna arrays cannot have element spacing larger than one wavelength in any plane because the resulting grating lobes absorb much power, which will limit the bandwidth of ...
Dau-Chyrh Chang +2 more
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Low-Cost Series-Fed Microstrip Antenna Arrays With Extremely Low Sidelobe Levels
IEEE Transactions on Antennas and Propagation, 2018This paper presents a new method of designing and implementing low-cost series-fed microstrip antenna arrays with low sidelobe levels by applying standard single-layer PCB technology.
Hossein Khalili +3 more
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Digest on Antennas and Propagation Society International Symposium, 2003
A multibeam antenna prototype for an ESM system is presented. The antenna is formed by a semicircular array of Vivaldi radiating elements, fed by an RKR microstrip lens. Both the lens and the array are printed on the same dielectric substrate. The antenna operates over one octave frequency band.
M. Sierra +3 more
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A multibeam antenna prototype for an ESM system is presented. The antenna is formed by a semicircular array of Vivaldi radiating elements, fed by an RKR microstrip lens. Both the lens and the array are printed on the same dielectric substrate. The antenna operates over one octave frequency band.
M. Sierra +3 more
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IEEE Antennas and Propagation Society International Symposium 1997. Digest, 2002
A grid array antenna is a radiation element of linear polarization. The feed point is located at the left or right edge of the antenna structure. As the frequency changes, the beam direction varies due to the phase change in the current along the grid cells.
H. Nakano, T. Kawano
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A grid array antenna is a radiation element of linear polarization. The feed point is located at the left or right edge of the antenna structure. As the frequency changes, the beam direction varies due to the phase change in the current along the grid cells.
H. Nakano, T. Kawano
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60 GHz Substrate-Integrated Waveguide-Based Monopulse Slot Antenna Arrays
IEEE Transactions on Antennas and Propagation, 2018This communication presents a new kind of substrate-integrated waveguide (SIW) slot antenna array with 1-D and 2-D monopulse radiation patterns. First, a new SIW magic-tee is developed, which exhibits a wide phase/amplitude balance bandwidth.
Jianfeng Zhu +3 more
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IEEE Transactions on Antennas and Propagation, 1982
Many millimeter and far-infrared imaging systems are limited in sensitivity and speed because they depend on a single scanned element. Because of recent advances in planar detectors such as Schottky diodes, superconducting tunnel junctions, and micro-boiometers, an attractive approach to this problem is a planar antenna array with integrated detectors.
D. Rutledge, M. Muha
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Many millimeter and far-infrared imaging systems are limited in sensitivity and speed because they depend on a single scanned element. Because of recent advances in planar detectors such as Schottky diodes, superconducting tunnel junctions, and micro-boiometers, an attractive approach to this problem is a planar antenna array with integrated detectors.
D. Rutledge, M. Muha
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