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The broadcast nature of wireless communication make it intrinsically vulnerable to jamming and eavesdropping attacks. Spread-spectrum techniques spread narrowband signals over a wide bandwidth, and provide good resistance to noise and jamming attacks. However, spread-spectrum signals can still be intercepted if their used spreading codes are known. To tackle this issue, this paper proposes a lightweight...
A wireless transfer link between three magnetically coupled resonators has been considered. Two different configurations have been investigated. In one case a single transmitter and two receivers are present. In the other case two transmitters and a single receiver are employed. For each case optimal analytical solutions for the load values that maximize the power delivered to the load(s) and the...
By using a network approach, a wireless inductive link for power transmission from multiple transmitters to multiple receivers is considered. The problem of maximizing the power delivered to the receivers is solved and analytical formulas are presented and validated by circuital simulations.
A wireless power transmission link with two transmitters and single receiver is analyzed and the problem of how to maximize the power delivered to the load is solved. The case of three magnetically coupled resonators is considered and analytical formulas are derived and validated by circuit simulations.
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