Results 271 to 280 of about 185,245 (299)
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Radiation efficiency of UWB antennas
2002 IEEE Conference on Ultra Wideband Systems and Technologies (IEEE Cat. No.02EX580), 2003This paper describes a version of the "Wheeler (1959) Cap method" modified for evaluating the efficiency of ultrawideband (UWB) antennas and discusses the application of this method to a Time Domain Corporation BroadSpec/spl trade/ Model 102 antenna. This antenna exhibits a radiation efficiency better than 90% from 1.5 GHz to above 6.0 GHz.
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Measurement of UWB antenna efficiency
IEEE VTS 53rd Vehicular Technology Conference, Spring 2001. Proceedings (Cat. No.01CH37202), 2002The usual narrowband or resonant techniques, for measuring antenna efficiency are ill-suited for use with ultra-wideband (UWB) or aresonant antennas. This paper develops an extension of the classic "Wheeler (1959) cap" technique that can be applied to UWB antennas.
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Efficiency, gain and Q of antennas
2007 International workshop on Antenna Technology: Small and Smart Antennas Metamaterials and Applications, 2007The fundamental limits of the gain, efficiency and Q-value of an antenna put severe restrictions on small antennas. In this paper it is discussed how one can avoid low efficiency and high Q-values in small antennas by examining the far-field pattern of the antenna.
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Improving the efficiency of implantable antennas
2016Increased demand for novel communication possibilities, sensors and gadgets has been a strong catalyst for Body Area Networks. Most of the research is focused on wearable devices, but in parallel the interest for medical implanted sensors for biotelemetry is also growing.
Bosiljevac, Marko +4 more
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Energy Efficiency of Large-Scale Multiple Antenna Systems with Transmit Antenna Selection
IEEE Transactions on Communications, 2014Lingyang Song, Merouane Debbah
exaly
High-Efficiency On-Chip Dielectric Resonator Antenna for mm-Wave Transceivers
IEEE Transactions on Antennas and Propagation, 2010Mohammad-Reza Nezhad-Ahmadi +2 more
exaly
Antenna-cavity coupling effects on measurement of antenna efficiency
IEEE Antennas and Propagation Society International Symposium (IEEE Cat. No.02CH37313), 2005null Yeqin Huang +2 more
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