Ka-band feed arrays for spacecraft reflector antennas with limited scan capability: An overview [PDF]
, 1992 JPL and NASA are in the process of developing ground and spacecraft antenna systems at Ka-band frequencies for future deep space applications. The use of Ka-band (32-GHz down) communication will result in smaller ground and spacecraft antennas and ...
Jamnejad, V.
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Method and apparatus for self-calibration and phasing of array antenna [PDF]
, 1984 A technique for self-calibrating and phasing a lens-feed array antenna, while normal operation is stopped, utilizes reflected energy of a continuous and coherent wave broadcast by a transmitter through a central feed while a phase controller advances the
Wu, C.
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Probe modeling for millimeter-wave integrated-circuit horn antennas [PDF]
, 1992 Integrated-circuit probe-excited horn-antenna arrays etched in silicon are well developed. They are a very promising class of antenna arrays for milli-meter and submillimeter applications.
Chiao, Jung-Chih +3 more
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OAM mode purity improvement based on antenna array
Digital Communications and NetworksOrbital Angular Momentum (OAM) waves are characterized by helical wave fronts and orthogonality between different modes. Therefore, OAM waves have huge potential in improving wireless communications' channel capacity and radar imaging's resolution ...
Dandan Liu +3 more
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Compact Planar Sparse Array Antenna with Optimum Element Dimensions for SATCOM Ground Terminals
International Journal of Antennas and Propagation, 2015 A novel antenna array architecture for low-cost and compact SATCOM mobile terminal is presented. Based on equal-amplitude aperiodic phased array with fewer active chain numbers, it possesses advantages including lower weight, less cost, and higher power ...
Junqi Lu, Yongxin Guo
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A Miniaturized Base Station Antenna With Novel Phase Shifter for 3G/LTE Applications
IEEE Access, 2018 This paper presents a new type of miniaturized base station antenna array, which consists of a metal reflector, six upper-band dipoles, and a couple of ladder sidewalls, operating over 1.71-2.69 GHz (DCS/PCS/UMTS/LTE). Meanwhile, this paper also proposes
Yejun He +5 more
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Directivity and spacing for the antenna elements [PDF]
, 1983 The optimum design choice for the MST radar antenna was considered. The following factors are required: directivity and gain; beam width and its symmetry; sidelobe levels, near and wide angle; impedance matching; feeder network losses; polarization ...
Koshy, V. K.
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Quasi-optical antenna-mixer-array design for terahertz frequencies [PDF]
A new quasi-optical antenna-mixer-array design for terahertz frequencies is presented. In the design, antenna and mixer are combined into an entity, based on the technology in which millimeter-wave horn antenna arrays have been fabricated in silicon ...
Guo, Yong +2 more
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60 GHz compact broadband antenna arrays with wide-angle beam steering
The Journal of Engineering, 2019 Highly integrated multilayered printed circuit board-based patch antenna arrays are proposed in this study for 60 GHz wireless communications. Electromagnetic coupling between two stacked patches is used to achieve
Imran Aziz +6 more
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Optical control of an 8-element Ka-band phased array using a high-speed optoelectronic interconnect [PDF]
Optical distribution of control signals in electronically steered phased array antennas is being considered. A demonstration experiment is described in which a high speed hybrid GaAs optoelectronic integrated circuit (OEIC) was used to control an eight ...
Bendett, M. +3 more
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