Results 211 to 220 of about 5,866 (267)
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Ultra-wideband sources and antennas
Ultra- Wideband Short-Pulse Electromagnetics 4 (IEEE Cat. No.98EX112), 2002Ultra-Wideband (UWB) sources and antennas are of interest for a variety of potential applications that range from transient radar systems to communications systems. In this paper, we discuss the research issues and progress being made in gas, oil and solid state switching, UWB sources, and antennas.
William D. Prather +10 more
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Body-coupled, wideband antennas
2015 IEEE Biomedical Circuits and Systems Conference (BioCAS), 2015In this paper we present antenna solutions for maximizing microwave energy release into the human body. Reflections from the body surface are avoided by coupling the antennas to the body using low-loss ceramic composites. Both 3D and 2D antenna topologies are explored for transcutaneous radar measurements.
Kristian Gjertsen Kjelgård +2 more
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Miniaturization of ultra-wideband antennas
2008 Asia-Pacific Microwave Conference, 2008This talk briefly introduces design challenges of ultra-wideband (UWB) antennas. An outlined of special design considerations are presented from a systems point of view, followed by some state-of-the-art solutions. Then, the miniaturization technology of UWB antennas is addressed.
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2011 International Workshop on Antenna Technology (iWAT), 2011
A conventional curl antenna is modified into a staircase curl antenna to realize a wideband axial ratio characteristic. It is found that the staircase curl has a dramatically wide bandwidth of approximately 50% for a 3 dB axial ratio criterion. It is also found that the VSWR exhibits values of less than 2 within this axial ratio bandwidth.
H. Nakano, R. Satake, J. Yamauchi
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A conventional curl antenna is modified into a staircase curl antenna to realize a wideband axial ratio characteristic. It is found that the staircase curl has a dramatically wide bandwidth of approximately 50% for a 3 dB axial ratio criterion. It is also found that the VSWR exhibits values of less than 2 within this axial ratio bandwidth.
H. Nakano, R. Satake, J. Yamauchi
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IEE National Conference on Antennas and Propagation, 1999
This paper describes the development of a wideband radiating element suitable for use in a planar array. The design is a more compact form of the fan dipole reported by Bailey (1984). An experimental array of such dipoles was constructed in order to evaluate the mutual coupling between the elements and the embedded radiation patterns.
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This paper describes the development of a wideband radiating element suitable for use in a planar array. The design is a more compact form of the fan dipole reported by Bailey (1984). An experimental array of such dipoles was constructed in order to evaluate the mutual coupling between the elements and the embedded radiation patterns.
openaire +1 more source
Wideband Rectangular Double-Ring Nanoribbon Graphene-Based Antenna for Terahertz Communications
IETE Journal of Research, 2022Ali Shahzadi, Mohammad Danaie
exaly
A Wideband PIFA-Pair-Based MIMO Antenna for 5G Smartphones
IEEE Antennas and Wireless Propagation Letters, 2021Tianqi Gu, Xiao-Ting Yuan, Zhe Chen
exaly
Ultra wideband monopole/dielectric resonator antenna
IEEE Microwave and Wireless Components Letters, 2005A Petosa, A Ittipiboon, Y M M Antar
exaly
A small wideband microstrip-fed monopole antenna
IEEE Microwave and Wireless Components Letters, 2005Jaehoon Choi, Wooyoung Choi
exaly