A. Thakur, D. Mondal, A. Singh, S. Yuvaraj, M. Rawat, M. Kartikeyan
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Design Studies of Multi-Beam All-Metallic Metamaterial-Based Backward-Wave Oscillator
The design aspects of all-metallic metamaterial slow-wave structure (SWS) of a multi-beam metamaterial-based backward-wave oscillator (MTMBWO) is investigated and simulated using CST microwave studio. A pair of split-ring resonators (SRRs) is periodically arranged in axial direction and repeated azimuthally in a cylindrical waveguide to confirm the double-negative metamaterial (DNM) region for RF wave propagation in the frequency regime of 3-4 GHz. The dispersion characteristics of the unit cell structure is analyzed. Furthermore, the particle in cell (PIC) simulation analysis of the complete SWS is discussed to investigate the backward-wave propagation and beam-wave interaction.
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