Results 71 to 80 of about 181,285 (205)
Active beamforming network design [PDF]
, 2008 This paper describe the design and implementation of multi beam antenna array using active beam forming network for wireless local area networks (WLAN) operating at 2.4 GHz band frequency.
A. Rahim, Mohamad Kamal +2 more
core
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
doaj +1 more source
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
core +1 more source
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.
core +1 more source
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
doaj +1 more source
Optimizations of Patch Antenna Arrays Using Genetic Algorithms Supported by the Multilevel Fast Multipole Algorithm [PDF]
, 2014 We present optimizations of patch antenna arrays using genetic algorithms and highly accurate full-wave solutions of the corresponding radiation problems with the multilevel fast multipole algorithm (MLFMA).
Ergül, Özgür Salih, Onol, Can
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Phased array antenna control [PDF]
, 1978 Several new and useful improvements in steering and control of phased array antennas having a small number of elements, typically on the order of 5 to 17 elements are provided.
Doland, G. D.
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Broadband choke for antenna structure [PDF]
, 1969 Broadband chokes and absorbers to reduce spurious radiation patterns of antenna array caused by support ...
Bishop, O. L., Bolt, C. A., Jr.
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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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Delay line and mutual coupling considerations for MST radar antenna arrays [PDF]
, 1983 Basic antenna theory which states that the field radiated from an antenna array is equal to the sum of the currents flowing in each element of the array is discussed.
Brosnahan, J. W.
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