Results 211 to 220 of about 1,302,382 (255)
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Underwater radio frequency antenna
2015The present invention relates to an underwater radio frequency antenna able to radiate in an underwater or equivalent propagation medium. It comprises -a hollow conducting tube (1) forming a resonant cavity, said conducting tube having an open end and a closed end,-means of excitation (2) of said resonant cavity which are able to be fed with signals ...
Le Pennec, François +6 more
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Antennas in Radio Telescope Systems
2015Radio astronomy is the study of the universe by measurement of radio frequency emission at frequencies ranging from a few MHz to the far infrared. Signals of interest are typically extraordinarily weak, necessitating large effective aperture and resulting in some of the world’s largest antenna systems.
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A Survey on Planar Antenna Designs for Cognitive Radio Applications
Wireless personal communications, 2017Anveshkumar Nella, A. Gandhi
semanticscholar +1 more source
A Novel Compact Reconfigurable Broadband Antenna for Cognitive Radio Applications
IEEE Transactions on Antennas and Propagation, 2020Adnan Kantemur +2 more
exaly
Antenna-to-Antenna Coupling in Aircraft Radio Systems
1979 IEEE International Symposium on Electromagnetic Compatibility, 1979David A Bull, Brian W Smithers
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Simplified Interference Modeling in Multi-Cell Multi-Antenna Radio Network Simulations
IEEE Vehicular Technology Conference, 2008P. Skillermark +4 more
semanticscholar +1 more source
Integrated compact UWB and frequency reconfigurable antenna with high isolation for cognitive radio
AEU - International Journal of Electronics and Communications, 2023Ravi Mali +2 more
exaly
A circular patch antenna for radio LAN's
IEEE Transactions on Antennas and Propagation, 1997Y J Guo, R A Sadeghzadeh, S K Barton
exaly
Transmission Characteristics of a Twisted Radio Wave Based on Circular Traveling-Wave Antenna
IEEE Transactions on Antennas and Propagation, 2015Shilie Zheng +4 more
semanticscholar +1 more source

