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Full-Text Articles in Engineering
Directional Modulation For Compact Devices, Adam Narbudowicz
Directional Modulation For Compact Devices, Adam Narbudowicz
Articles
A new directional modulation system which uses radiation pattern data for modulation encoding is proposed. The approach allows compact multiport antennas (e.g. MIMO capable antennas) to be used for directional modulation, replacing extensive arrays. The modulation weighting coefficients are calculated with a fixed, antenna specific equation, thus reducing computational complexity. The solution is intended to enhance privacy in small, battery-operated wireless devices, required for “Internet of Things” applications.
Calculating The Envelope Correlation Coefficient Directly From Spherical Modes Spectrum, Adam Narbudowicz, Max Ammann, R. Cornelius, D. Heberling
Calculating The Envelope Correlation Coefficient Directly From Spherical Modes Spectrum, Adam Narbudowicz, Max Ammann, R. Cornelius, D. Heberling
Conference Papers
This paper proposes an improved technique to calculate the Envelope Correlation Coefficient (ECC) by directly using the spherical mode spectrum of the antenna under test. The technique avoids errors due to numerical pattern integration and simplifies post-processing for near-field measurements. The technique is successfully tested on two different antenna types, in the total number of four MIMO configurations.