Search Results - "Craddock, I.J"

Radar-Based Breast Cancer Detection Using a Hemispherical Antenna Array-Experimental Results by Klemm, M., Craddock, I.J., Leendertz, J.A., Preece, A., Benjamin, R.

“…In this contribution, an ultrawideband (UWB) microwave system for breast cancer detection is presented. The system is based on a novel hemispherical…”
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A Comparison of a Wide-Slot and a Stacked Patch Antenna for the Purpose of Breast Cancer Detection by Gibbins, D., Klemm, M., Craddock, I.J., Leendertz, J.A., Preece, A., Benjamin, R.

“…A wide-slot UWB antenna is presented for intended use in the detection scheme being developed at the University of Bristol, based on the principle of…”
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Microwave Radar-Based Breast Cancer Detection: Imaging in Inhomogeneous Breast Phantoms by Klemm, M., Leendertz, J.A., Gibbins, D., Craddock, I.J., Preece, A., Benjamin, R.

“…This letter presents, for the first time, experimental work on microwave breast cancer imaging using inhomogeneous breast phantoms. A recently designed…”
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The treatment of geometrically small structures in FDTD by the modification of assigned material parameters by Railton, C.J., Paul, D.L., Craddock, I.J., Hilton, G.S.

“…A number of different improvements to the analysis by finite-difference time-domain (FDTD) of small structures, such as wires, strips and slots have been…”
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Calculation of losses in 2-D photonic Crystal membrane waveguides using the 3-D FDTD method by Cryan, M.J., Wong, D.C.L., Craddock, I.J., Yu, S., Rorison, J., Railton, C.J.

“…The three-dimensional finite-difference time-domain method is used to obtain loss per unit length in a two-dimensional photonic crystal membrane waveguide by…”
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Finite difference time domain Simulation of the Earth-ionosphere resonant cavity: Schumann resonances by Soriano, A., Navarro, E.A., Paul, D.L., Porti, J.A., Morente, J.A., Craddock, I.J.

“…This paper presents a numerical approach to study the electrical properties of the Earth's atmosphere. The finite-difference time-domain (FDTD) technique is…”
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Three-Dimensional FDTD Simulation of Micro-Pillar Microcavity Geometries Suitable for Efficient Single-Photon Sources by Ho, Y.-L.D., Tun Cao, Ivanov, P.S., Cryan, M.J., Craddock, I.J., Railton, C.J., Rarity, J.G.

“…We present the results of calculations of the microcavity mode structure of distributed-Bragg-reflector (DBR) micro-pillar microcavities of group III-V…”
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Fast-Light Based Pulse Compression in 2-D Photonic Crystal Waveguides by Tun Cao, Cryan, M.J., Ying-Lung Daniel Ho, Craddock, I.J., Railton, C.J.

“…Chirped-pulse propagation close to a mini-stopband (MSB) in short photonic crystal (PhC) waveguides is studied using the 2-D finite-difference time-domain…”
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The Treatment of Singularities at 90 ^ and 270 ^ Microstrip Corners in FDTD by the Modification of Assigned Material Parameters by Railton, C.J., Paul, D.L., Craddock, I.J., Hilton, G.S.

“…It has been recently shown that the efficiency of the finite-difference time-domain (FDTD) method for structures containing thin wires and metal edges is much…”
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The treatment of thin wires in the FDTD method using a weighted residuals approach by Railton, C.J., Boon Ping Koh, Craddock, I.J.

“…In this contribution, the problem of accurately representing thin wires within the finite-difference time-domain (FDTD) mesh is addressed by means of a method…”
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Multilayer and conformal antennas using synthetic dielectric substrates by Navarro, E.A., Luximon, A., Craddock, I.J., Paul, D.L., Dean, M.

“…Multilayer antennas - for example, stacked patches - often employ low permittivity substrates, such as foams. These foams, however, tend to be fragile,…”
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Multiple-Input Multiple-Output Radar for Lesion Classification in Ultrawideband Breast Imaging by Yifan Chen, Craddock, I.J., Kosmas, P., Ghavami, M., Rapajic, P.

“…This paper studies the problem of applying multiple-input multiple-output (MIMO) radar techniques for lesion classification in ultrawideband (UWB) breast…”
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Contrast-enhanced breast cancer detection using dynamic microwave imaging by Klemm, M., Craddock, I. J., Preece, A.

“…This paper presents numerical studies of contrast-enhanced breast cancer detection using dynamic microwave-radar imaging system. Using three-dimensional…”
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A new technique for the stable incorporation of static field solutions in the FDTD method for the analysis of thin wires and narrow strips by Craddock, I.J., Railton, C.J.

“…The behavior of the fields around many common objects (e.g., wires, slots, and strips) converges to known static solutions. Incorporation of this a priori…”
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Towards contrast enhanced breast imaging using ultra-wideband microwave radar system by Klemm, M., Leendertz, J., Gibbins, D., Craddock, I.J., Preece, A., Benjamin, R.

“…In this paper we present numerical results of contrast-enhanced breast imaging using ultra-wideband microwave radar system. Due to low contrast in electrical…”
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Analysis and realization of low-cost damped screened rooms by Izzat, N., Craddock, I.J., Hilton, G.S., Railton, C.J.

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3D modelling of enhanced surface emission using surface roughening by Buss, I.J., Cryan, M.J., Ho, D., Nash, G., Haigh, M.K., Craddock, I.J., Railton, C.J., Rarity, J.G.

“…3D FDTD is used to study the effect of surface roughening on the emission of a point source embedded in GaAs with a mirror behind the dipole. Enhancement…”
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Modelling the polarisation mode control of single quantum-dot emission in elliptical micro-pillar microcavities based on DBR mirror pairs using the FDTD method by Ho, Y.-L.D., Cao, T., Ivanov, P.S., Cryan, M.J., Craddock, I.J., Railton, C.J., Rarity, J.G.

“…We use the finite difference time domain method (FDTD) to investigate polarisation control of single-photon emission from single quantum dots confined in…”
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Lumped device modeling with FDTD including packaging effects by Boon Ping Koh, Craddock, I.J., Urwin-Wright, P., Railton, C.J.

“…A two-terminal device can be incorporated into FDTD using the Lumped Element FDTD (LE-FDTD) formulation, unfortunately, this method is not able to analyze…”
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Development and application of a UWB radar system for breast imaging by Craddock, I.J., Klemm, M., Leendertz, J., Preece, A.W., Benjamin, R.

“…This contribution describes recent progress towards a functioning UWB radar system for imaging the human breast. The antenna and array design are described and…”
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