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physics.app-ph2020
Radiation Efficiency Limits in Direct Antenna Modulation Transmitters
Kurt Schab
Relative bounds on radiation efficiency are established for time-modulated antenna systems where radiation is generated by broadband conduction currents impressed using idealized n…
physics.app-ph2018
Trade-off Between Antenna Efficiency and Q-Factor
Mats Gustafsson, Miloslav Capek, Kurt Schab
The trade-off between radiation efficiency and antenna bandwidth, expressed in terms of Q-factor, for small antennas is formulated as a multi-objective optimization problem in curr…