Results 81 to 90 of about 156,809 (211)
Model and optimization of ultrasonic phased array parameters
Journal of Measurement Science and Instrumentation, 2016 Beam focusing is one of the unique characteristics of ultrasonic phased array compared with conventional ultrasound.On the basis of two-dimensional radiated sound field of phased array,the three-dimensional radiated sound field was simulated in the paper,
QIAN Xue-wei, WANG Zhao-ba, ZHAO Xia
doaj
On RF localisation deception capability of FDA signal under interferometry reconnaissance
The Journal of Engineering, 2019 Phased-array antennas are known for their capability to electronically steer a beam with high effectiveness, but beam steering is fixed in an angle for all range cells.
Xihui Zhang +3 more
doaj +1 more source
Proceedings, 2018 Summary Quarries and open pit mines face challenges in areas with surrounding infrastructure. Unavoidable side effects of rock blasting like ground vibrations are subject to many legal restrictions. Mines use vastly different methods to predict vibrations, which are either based on trial-and-error, or on very simplified models which neglects complex ...
C. Tauchner, F. Bleibinhaus
openaire +2 more sources
A phased array tracking antenna for vehicles [PDF]
An antenna system including antenna elements and a satellite tracking method is considered a key technology in implementing land mobile satellite communications.
Mano, Kazukiko +4 more
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A Flexible Phased-MIMO Array Antenna with Transmit Beamforming
International Journal of Antennas and Propagation, 2012 Although phased-array antennas have been widely employed in modern radars, the requirements of many emerging applications call for new more advanced array antennas.
Wen-Qin Wang, Huaizong Shao
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Monolithic optical integrated control circuitry for GaAs MMIC-based phased arrays [PDF]
Gallium arsenide (GaAs) monolithic microwave integrated circuits (MMIC's) show promise in phased-array antenna applications for future space communications systems.
Bhasin, K. B. +2 more
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The OSU self-phased array for propagation measurements using the 11.7 GHz CTS beacon [PDF]
A self phased array was developed for propagation measurements on an earth-space path. The 11.7 GHz CTS beacon was used as the signal source. The self phased array was used to measure angle of arrival as well as attenuation and scintillation statistics ...
Hodge, D. B., Theobold, D. M.
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Phased array-fed antenna configuration study [PDF]
The scope of this contract entails a configuration study for a phased array fed transmit antenna operating in the frequency band of 17.7 to 20.2 GHz.
Ball, D. E. +2 more
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Design of a Ka-band Wideband Multibeam Phased Array
Guangtongxin yanjiu【Objective】The world has entered the era of 5th Generation Mobile Communication Technology (5G) and satellite Internet, and the demand for communication speed and capacity in various fields has surged, while the application of traditional parabolic and ...
GUAN Jin +4 more
doaj
Computation of the radiation characteristics of a generalized phased array [PDF]
With the advent of monolithic microwave integrated circuit (MMIC) technology, the phased array has become a key component in the design of advanced antenna systems. Array-fed antennas are used extensively in today's multiple beam satellite antennas.
Acosta, R. J.
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