Kathleen Melde - Academia.edu (original) (raw)
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Papers by Kathleen Melde
Proceedings of the 2012 IEEE International Symposium on Antennas and Propagation, 2012
19th Topical Meeting on Electrical Performance of Electronic Packaging and Systems, 2010
IEEE Transactions on Components, Packaging and Manufacturing Technology, 2016
2016 10th European Conference on Antennas and Propagation (EuCAP), 2016
2015 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium), 2015
2014 IEEE 23rd Conference on Electrical Performance of Electronic Packaging and Systems, 2014
2014 IEEE 23rd Conference on Electrical Performance of Electronic Packaging and Systems, 2014
WIT Transactions on State of the Art in Science and Engineering, 2014
2013 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium), 2013
Renewable Energy and the Environment, 2013
Optics Express, 2013
Thin film nanostructured photovoltaic cells are increasing in efficiency and decreasing the cost ... more Thin film nanostructured photovoltaic cells are increasing in efficiency and decreasing the cost of solar energy. FDTD modeling of branched nanowire 'forests' are shown to have improved optical absorption in the visible and near-IR spectra over nanowire arrays alone, with a factor of 5 enhancement available at 1000 nm. Alternate BNW tree configurations are presented, achieving a maximum absorption of over 95% at 500 nm.
Microwave and Optical Technology Letters, 2005
Equispaced linear arrays that have uniformly excited central elements and monotonically decreasin... more Equispaced linear arrays that have uniformly excited central elements and monotonically decreasing flanking segments have been shown to yield low-sidelobe patterns with specified constraints on the effective radiated voltage (ERV). An analytical method for generating these distributions using a constrained least-squares (CLS) method, with restrictions on both the peak amplitude of the elements and the ERV, has been discussed in a previous work. Simulated annealing (SA) is a versatile global-optimization technique that can be effectively used for similar purposes, but can also provide additional control over some other design parameters. In this paper, we inspect both methods-indicating some of their advantages and drawbacks-through some numerical results. Figure 5 Measured gain of the antenna (S ϭ 5 ϫ 5 cm 2 ) Lett 45: 60 -62, 2005; Published online in Wiley InterScience (www.
2012 IEEE 21st Conference on Electrical Performance of Electronic Packaging and Systems, 2012
IEEE Transactions on Components, Packaging and Manufacturing Technology, 2013
2008 IEEE-EPEP Electrical Performance of Electronic Packaging, 2008
This paper proposes a simple method to create a causal transmission line model using both scatter... more This paper proposes a simple method to create a causal transmission line model using both scattering parameter measurements and full wave simulations on co-planar waveguide (CPW) lines with surface roughness.
Ieee Transactions on Vehicular Technology, Nov 1, 2008
We propose to combine directional antennas in a conformal array configuration with a matching two... more We propose to combine directional antennas in a conformal array configuration with a matching two-stage receiver architecture to improve performance of code-division multiple-access (CDMA) communication systems in time-varying channels. We propose a reduced-dimension space-time (ST) RAKE architecture that matches the ST correlation structure of the data received by a circular array. In time-varying channels, this reduced-dimension architecture outperforms the full-dimension architecture due to improved convergence of its adaptive processor.
2005 Ieee Antennas and Propagation Society International Symposium, Jul 3, 2005
2003 Ieee Topical Conference on Wireless Communication Technology, Nov 15, 2003
The demand for wireless high-speed data services makes the development of broadband wireless mobi... more The demand for wireless high-speed data services makes the development of broadband wireless mobile communications systems important. This includes the development of accurate channel models to characterize fading for a variety of propagation environments from microwave to millimeter wave frequencies. Narrowband statistical propagation models for small-scale fading are obtained from experimental data using a low profile directional antenna called the
Proceedings of the 2012 IEEE International Symposium on Antennas and Propagation, 2012
19th Topical Meeting on Electrical Performance of Electronic Packaging and Systems, 2010
IEEE Transactions on Components, Packaging and Manufacturing Technology, 2016
2016 10th European Conference on Antennas and Propagation (EuCAP), 2016
2015 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium), 2015
2014 IEEE 23rd Conference on Electrical Performance of Electronic Packaging and Systems, 2014
2014 IEEE 23rd Conference on Electrical Performance of Electronic Packaging and Systems, 2014
WIT Transactions on State of the Art in Science and Engineering, 2014
2013 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium), 2013
Renewable Energy and the Environment, 2013
Optics Express, 2013
Thin film nanostructured photovoltaic cells are increasing in efficiency and decreasing the cost ... more Thin film nanostructured photovoltaic cells are increasing in efficiency and decreasing the cost of solar energy. FDTD modeling of branched nanowire 'forests' are shown to have improved optical absorption in the visible and near-IR spectra over nanowire arrays alone, with a factor of 5 enhancement available at 1000 nm. Alternate BNW tree configurations are presented, achieving a maximum absorption of over 95% at 500 nm.
Microwave and Optical Technology Letters, 2005
Equispaced linear arrays that have uniformly excited central elements and monotonically decreasin... more Equispaced linear arrays that have uniformly excited central elements and monotonically decreasing flanking segments have been shown to yield low-sidelobe patterns with specified constraints on the effective radiated voltage (ERV). An analytical method for generating these distributions using a constrained least-squares (CLS) method, with restrictions on both the peak amplitude of the elements and the ERV, has been discussed in a previous work. Simulated annealing (SA) is a versatile global-optimization technique that can be effectively used for similar purposes, but can also provide additional control over some other design parameters. In this paper, we inspect both methods-indicating some of their advantages and drawbacks-through some numerical results. Figure 5 Measured gain of the antenna (S ϭ 5 ϫ 5 cm 2 ) Lett 45: 60 -62, 2005; Published online in Wiley InterScience (www.
2012 IEEE 21st Conference on Electrical Performance of Electronic Packaging and Systems, 2012
IEEE Transactions on Components, Packaging and Manufacturing Technology, 2013
2008 IEEE-EPEP Electrical Performance of Electronic Packaging, 2008
This paper proposes a simple method to create a causal transmission line model using both scatter... more This paper proposes a simple method to create a causal transmission line model using both scattering parameter measurements and full wave simulations on co-planar waveguide (CPW) lines with surface roughness.
Ieee Transactions on Vehicular Technology, Nov 1, 2008
We propose to combine directional antennas in a conformal array configuration with a matching two... more We propose to combine directional antennas in a conformal array configuration with a matching two-stage receiver architecture to improve performance of code-division multiple-access (CDMA) communication systems in time-varying channels. We propose a reduced-dimension space-time (ST) RAKE architecture that matches the ST correlation structure of the data received by a circular array. In time-varying channels, this reduced-dimension architecture outperforms the full-dimension architecture due to improved convergence of its adaptive processor.
2005 Ieee Antennas and Propagation Society International Symposium, Jul 3, 2005
2003 Ieee Topical Conference on Wireless Communication Technology, Nov 15, 2003
The demand for wireless high-speed data services makes the development of broadband wireless mobi... more The demand for wireless high-speed data services makes the development of broadband wireless mobile communications systems important. This includes the development of accurate channel models to characterize fading for a variety of propagation environments from microwave to millimeter wave frequencies. Narrowband statistical propagation models for small-scale fading are obtained from experimental data using a low profile directional antenna called the