− Computing the far-field transient response of a two-dimensional geometry requires a convolution... more − Computing the far-field transient response of a two-dimensional geometry requires a convolution of near-field currents with a two-dimensional far-field impulse response. In this work, a purely time domain implementation is derived and its accuracy is demonstrated. This method is applicable to EMI, radiation, and scattering problems.
− The use of graphical processing units (GPU) has been recently documented for the implementation... more − The use of graphical processing units (GPU) has been recently documented for the implementation of the FDTD technique; however, little has been reported about the necessary additions to three dimensional FDTD codes to make the technique more useful for fast antenna analysis and design. This paper details the addition of a convolutional perfectly matched layer absorbing boundary (CPML) to a three dimensional GPU accelerated FDTD code.
2001 Digest of LEOS Summer Topical Meetings: Advanced Semiconductor Lasers and Applications/Ultraviolet and Blue Lasers and Their Applications/Ultralong Haul DWDM Transmission and Networking/WDM Compo, 2001
Next generation DWDM transport equipment must be designed to take advantage of the cost savings a... more Next generation DWDM transport equipment must be designed to take advantage of the cost savings associated with both ultra-long haul transmission and high spectral efficiency. In addition, to support bandwidth-on-demand, and other differentiated services, high-speed data channels that can be shared efficiently and provisioned flexibly will be required. High spectral efficiency systems composed of a few high rate data channels will be preferred because they can support legacy bandwidth demands with less equipment and fewer systems that are easier to manage and spare. In addition, higher channel rate systems can scale to meet the dynamic bandwidth demands of a data oriented backbone. Experimental results support the claims that long-haul 40 Gbit/s DWDM transport systems can be deployed today, on existing network infrastructure.
2013 IEEE International Conference on RFID (RFID), 2013
An electrically small bulk acoustic wave true time delay is proposed for use in a coherent, passi... more An electrically small bulk acoustic wave true time delay is proposed for use in a coherent, passive, and transistorless RFID tag operating around 2.45 GHz. The active area of the time delay component is just 100×100 microns, and a delay of about 10 ns is achieved. Experimentally, maximum power transfer was obtained near 1.4 GHz. A link budget for the realized device is presented, and RCS modulation is quantified by measurements conducted in an indoor anechoic range.
Ieee Antennas and Propagation Society International Symposium 1999 Digest Held in Conjunction With Usnc Ursi National Radio Science Meeting, Jul 11, 1999
Proceedings of IEEE Antennas and Propagation Society International Symposium and URSI National Radio Science Meeting, 2000
The finite difference time domain (FDTD) method has been successfully used to analyze and optimiz... more The finite difference time domain (FDTD) method has been successfully used to analyze and optimize a number of simple transmitting antennas for pulse radiation. These antennas have mainly been rotationally symmetric structures (cylindrical and conical monopoles, both metallic and resistively loaded). In all cases, excellent agreement was obtained with experimental measurements. We discuss the reception of a plane wave pulse
Proceedings of IEEE Antennas and Propagation Society International Symposium and URSI National Radio Science Meeting, 1994
There has been a great deal of interest in photonic band structures (PBS). In the literature, the... more There has been a great deal of interest in photonic band structures (PBS). In the literature, the PBSs considered are usually infinite periodic dielectric lattices. These lattice structures exhibit frequency bands over which propagation can not occur for any direction. The type of structures which have been theoretically analysed to date have been infinite, two- and three dimensional periodic dielectric
− Computing the far-field transient response of a two-dimensional geometry requires a convolution... more − Computing the far-field transient response of a two-dimensional geometry requires a convolution of near-field currents with a two-dimensional far-field impulse response. In this work, a purely time domain implementation is derived and its accuracy is demonstrated. This method is applicable to EMI, radiation, and scattering problems.
− The use of graphical processing units (GPU) has been recently documented for the implementation... more − The use of graphical processing units (GPU) has been recently documented for the implementation of the FDTD technique; however, little has been reported about the necessary additions to three dimensional FDTD codes to make the technique more useful for fast antenna analysis and design. This paper details the addition of a convolutional perfectly matched layer absorbing boundary (CPML) to a three dimensional GPU accelerated FDTD code.
2001 Digest of LEOS Summer Topical Meetings: Advanced Semiconductor Lasers and Applications/Ultraviolet and Blue Lasers and Their Applications/Ultralong Haul DWDM Transmission and Networking/WDM Compo, 2001
Next generation DWDM transport equipment must be designed to take advantage of the cost savings a... more Next generation DWDM transport equipment must be designed to take advantage of the cost savings associated with both ultra-long haul transmission and high spectral efficiency. In addition, to support bandwidth-on-demand, and other differentiated services, high-speed data channels that can be shared efficiently and provisioned flexibly will be required. High spectral efficiency systems composed of a few high rate data channels will be preferred because they can support legacy bandwidth demands with less equipment and fewer systems that are easier to manage and spare. In addition, higher channel rate systems can scale to meet the dynamic bandwidth demands of a data oriented backbone. Experimental results support the claims that long-haul 40 Gbit/s DWDM transport systems can be deployed today, on existing network infrastructure.
2013 IEEE International Conference on RFID (RFID), 2013
An electrically small bulk acoustic wave true time delay is proposed for use in a coherent, passi... more An electrically small bulk acoustic wave true time delay is proposed for use in a coherent, passive, and transistorless RFID tag operating around 2.45 GHz. The active area of the time delay component is just 100×100 microns, and a delay of about 10 ns is achieved. Experimentally, maximum power transfer was obtained near 1.4 GHz. A link budget for the realized device is presented, and RCS modulation is quantified by measurements conducted in an indoor anechoic range.
Ieee Antennas and Propagation Society International Symposium 1999 Digest Held in Conjunction With Usnc Ursi National Radio Science Meeting, Jul 11, 1999
Proceedings of IEEE Antennas and Propagation Society International Symposium and URSI National Radio Science Meeting, 2000
The finite difference time domain (FDTD) method has been successfully used to analyze and optimiz... more The finite difference time domain (FDTD) method has been successfully used to analyze and optimize a number of simple transmitting antennas for pulse radiation. These antennas have mainly been rotationally symmetric structures (cylindrical and conical monopoles, both metallic and resistively loaded). In all cases, excellent agreement was obtained with experimental measurements. We discuss the reception of a plane wave pulse
Proceedings of IEEE Antennas and Propagation Society International Symposium and URSI National Radio Science Meeting, 1994
There has been a great deal of interest in photonic band structures (PBS). In the literature, the... more There has been a great deal of interest in photonic band structures (PBS). In the literature, the PBSs considered are usually infinite periodic dielectric lattices. These lattice structures exhibit frequency bands over which propagation can not occur for any direction. The type of structures which have been theoretically analysed to date have been infinite, two- and three dimensional periodic dielectric
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Papers by Jim Maloney