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Article Dans Une Revue IEEE Antennas and Wireless Propagation Letters Année : 2020

Equidispersive Dual-Mode Long Slot Arrays

Résumé

In this letter, we propose an analytic study for engineering equidispersive (ED) orthomode parallel-plate waveguide (PPW) structures. As difference with classical PPWs having perfectly conducting walls, the metallic plates are here replaced by arbitrary surface impedance boundaries. Closed-form expressions are provided to engineer their dispersion and obtain purely ED dual-mode propagation exploiting transverse electric and magnetic modes. This new class of PPWs is finally used as radiating open-ended stubs, arranged in a periodic environment to attain circular polarization. The corresponding axial ratio is calculated to be below 3 dB over a 22.3% fractional bandwidth.
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Dates et versions

hal-03103351 , version 1 (11-01-2021)

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Citer

M. del Mastro, S. Lenzini, R. Sauleau, Mauro Ettorre. Equidispersive Dual-Mode Long Slot Arrays. IEEE Antennas and Wireless Propagation Letters, 2020, 19 (12), pp.2127-2131. ⟨10.1109/LAWP.2020.3024618⟩. ⟨hal-03103351⟩
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