Results 251 to 260 of about 117,363 (337)

Broadband Achromatic Programmable Electromagnetic Camouflage via Fluidic-Accessible Metasurface. [PDF]

Adv Sci (Weinh)
Liu S, Zhang J, Wang J, Chen Z, Yu Z, Luo J, Luo J, Cao R, Gong S, Guo Q, Li P, Li R, Chen K, Jia Y, Liu Y.   +14 more
europepmc   +1 more source

Secure Multi-Directional Independent Transmission Based on Directional Modulated 2D Conformal Phased Array. [PDF]

Sensors (Basel)
Wu F, Zhang P, Qin Y, Gong X, Lu H.
europepmc   +1 more source

An Analog Open-Loop Adaptive-Array Antenna System

An Analog Open-Loop Adaptive-Array Antenna System
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DOA-based adaptive array antenna testbed system

Proceedings of the 16th International Symposium on Power Semiconductor Devices & IC's, 2004
At a cellular radio base station, adaptive array antenna technology, exploiting spatial domain filtering with antenna array and digital signal processing, can combat cochannel interference (CCI), thus the system capacity can be increased. Adaptive array antenna algorithms usually need, in advance, the directions of arrival (DOAs) of the desired and ...
M. Kim, K. Ichige, H. Arai
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The implementation of a broadband adaptive array antenna system

International Conference on Communication Technology Proceedings, 2003. ICCT 2003., 2004
A broadband adaptive array antenna system was built in lab to check the signal processing algorithm. The antenna element, the RF receiving module and the digital processing unit are presented step by step. Especially for the signal processing, both the hardware platform and the software algorithm are researched together.
null Hu Weidong, null An Yi, null Lv Xin, null Gao Benqing   +3 more
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An FDM concept for GPS adaptive array antenna system

IEEE 60th Vehicular Technology Conference, 2004. VTC2004-Fall. 2004, 2005
Adaptive array antenna systems have been widely used for GPS receivers for antenna beamforming and nulling. However the conventional technique requires several analog-to-digital-converter (ADC) and digital signal processing paths to achieve high performance GPS tracks in interference rich environments. This paper describes a new technique for a digital
K.V. Cai
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Adaptive flexible antenna array system for deformable wing surfaces

2015 IEEE Aerospace Conference, 2015
A 4×1 coplanar and flexible antenna array for deformable surfaces is studied under different bending angles. It is assumed that the array is bent from one edge on top of an insulating cylinder (single-edge cylindrical bending). Due to flexing, the array radiates a tilted main beam.
Dimitris Anagnostou, Mina Iskander
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