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Título del libro: 2018 Ieee International Conference On Computational Electromagnetics, Iccem 2018
Título del capítulo: Active Frequency Selective Surfaces Based on Loaded Ring Patches

Autores UNAM:
JORGE RODRIGUEZ CUEVAS; OLEKSANDR MARTYNYUK; JOSE ISMAEL MARTINEZ LOPEZ;
Autores externos:

Idioma:
Inglés
Año de publicación:
2018
Palabras clave:

Capacitance; Diodes; Electromagnetic wave absorption; Electromagnetic wave polarization; Frequency selective surfaces; Natural frequencies; Periodic structures; Varactors; Active arrays; Active frequencies; Electronically tunable; Equivalent electrical circuits; Loaded metal; Loaded ring; Reverse bias voltage; Varactor diodes; Computational electromagnetics


Resumen:

This paper presents an X-band active frequency selective surface (FSS) based on metal rings loaded with varactor diodes. The FSS unit cell that contains the loaded metal ring resonator is modeled using both an equivalent electrical circuit and a commercially-available full-wave solver. The resonant frequency of the ring is tuned by changing the varactor's capacitance due to the different reverse-bias voltages applied to the varactor diodes. It is shown that these capacitor values in the range from 30 to 65 pF shift the resonant frequency of the FSS from 9.17 to 8.33 GHz. The proposed geometry can be used as an electronically-tunable band-stop FSS. © 2018 IEEE.


Entidades citadas de la UNAM: