Archivio Istituzionale della RicercaWe exploit a second order exceptional point of degeneracy (EPD) to enhance frequency purity and oscillation stability in oscillators. The EPD we consider in this paper is a regular band edge (RBE) that exists in lossless and gainless periodic waveguides. We present an example of single-ladder oscillator that may act as a leaky wave antenna (LWA). The oscillator we develop has 8 unit-cells that form a resonant cavity and an active element is used to compensate for the losses and start the oscillation. We show that the oscillation frequency is in proximity of the RBE frequency thanks to the second order degeneracy.
A Concept for a Leaky Wave Antenna Oscillator With Second Order Degeneracy / Renzi, Enrico M.; Abdelshafy, Ahmed F.; Mealy, Tarek; Matekovits, Ladislau; Capolino, Filippo. - (2020), pp. 147-148. (Intervento presentato al convegno 2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting tenutosi a Montreal, QC, Canada nel 5-10 July 2020) [10.1109/IEEECONF35879.2020.9330065].
A Concept for a Leaky Wave Antenna Oscillator With Second Order Degeneracy
Matekovits, Ladislau;
2020
Abstract
We exploit a second order exceptional point of degeneracy (EPD) to enhance frequency purity and oscillation stability in oscillators. The EPD we consider in this paper is a regular band edge (RBE) that exists in lossless and gainless periodic waveguides. We present an example of single-ladder oscillator that may act as a leaky wave antenna (LWA). The oscillator we develop has 8 unit-cells that form a resonant cavity and an active element is used to compensate for the losses and start the oscillation. We show that the oscillation frequency is in proximity of the RBE frequency thanks to the second order degeneracy.
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Descrizione: A Concept for a Leaky Wave Antenna Oscillator With Second Order Degeneracy
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Descrizione: A Concept for a Leaky Wave Antenna Oscillator With Second Order Degeneracy
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https://hdl.handle.net/11583/2872132