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A Vector Approach for the Analysis and Synthesis of Directional Modulation Transmitters
TLDR
In order to formalize and extend on previous ad-hoc analysis and synthesis methods a theoretical treatment using vector representations of directional modulation (DM) systems is introduced which allows the artificial orthogonal noise concept derived from information theory to be brought to bear on DM analysis. Expand
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Series-L/parallel-tuned comparison with shunt-C/series-tuned class-E power amplifier
An analysis of the operation of a series-L/parallel-tuned class-E amplifier and its equivalence to the classic shunt-C/series-tuned class-E amplifier are presented. The first reported closed formExpand
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SiO/sub 2/ interface layer effects on microwave loss of high-resistivity CPW line
For a coplanar waveguide (CPW) line where the metal conductor is in direct contact with the HR-Si substrate, the microwave losses are low but are sensitive to DC bias due to DC leakage current. WithExpand
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Electromagnetic Metamaterials: Physics and Engineering Explorations (Engheta, N. and Ziolkowski, R.W.; 2006) [Book Review]
This book is excelland and consists of 27 contributing authors. It maximizes written descriptions based on standard basic electronic-engineering principles and uses mathematics in a concise format inExpand
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Passive Intermodulation in Finite Lengths of Printed Microstrip Lines
This paper addresses the theoretical aspects of passive intermodulation (PIM) generation in printed transmission lines. In order to elucidate the mechanisms of PIM generation, a new model of theExpand
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Understanding and measuring circular polarization
TLDR
An introduction to circular polarization (CP) wave propagation and its use in communications systems design. Expand
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Frequency Diverse Array OFDM Transmitter for Secure Wireless Communication
TLDR
In this reported work, the frequency diverse array concept is employed to construct an orthogonal frequency-division multiplexing (OFDM) transmitter that has the capability of securing wireless communication in free space directly in the physical-layer without the need for mathematical encryption. Expand
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Low-loss CPW lines on surface stabilized high-resistivity silicon
The authors propose a solution to the surface conduction problem in silicon monolithic microwave integrated circuits (MMIC's). An LPCVD polycrystalline silicon layer is deposited over the surface ofExpand
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Design and Measurement of Reconfigurable Millimeter Wave Reflectarray Cells With Nematic Liquid Crystal
  • W. Hu, R. Cahill, +4 authors N. Grant
  • Materials Science
  • IEEE Transactions on Antennas and Propagation
  • 30 September 2008
Numerical simulations are used to study the electromagnetic scattering from phase agile microstrip reflectarray cells which exploit the voltage controlled dielectric anisotropy property of nematicExpand
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Constraining Directional Modulation Transmitter Radiation Patterns
An iterative pattern synthesis approach for directional modulation (DM) transmitters is presented in this study. Unlike all previous work, this study offers the first discussion on constraining DMExpand
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