A Complete Causal Model of the Weakly-dispersive Leaky-wave Radiation

The weakly-dispersive, leaky-wave (LW) electromagnetic (EM) radiation from a gapped-fed slot is pivotal to the functioning of Leaky-Lens Antennas (LLAs), a class of radiators that are conditional for implementing ultra-high throughput wireless links or high-resolution radar applications. These radiators rely on conditioning the EM radiation for optimal focussing via lenses this, in turn, yielding the high gain levels required by those applications. The LW radiation has been extensively studied in the frequency-domain (FD), this requiring, implicitly, the operation of the antennas under steady-state, time-harmonic conditions. Nonetheless, ultra-high throughput links will drastically limit the interval over which the steady-state operation can be assumed.

• Theoretical challenge: complement the time-harmonic, leaky-wave model with a causal, time-domain one

• Application research question: what is absolute minimum length of a symbol to be transmitted via a leaky-lens antenna designed on time-harmonic principles?

• Where we are: preliminary theoretical results + insight; ample computational evidence

• What we offer: low-threshold, personalised coaching; unique experience in time-domain EM

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Last modified: 2025-11-27