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Polarization reconfigurability enabled metamaterial inspired dielectric resonator based Fabry‐Perot resonator cavity antenna with high gain and bandwidth
Author(s) -
Das Satyadeep,
Sahu Sudhakar
Publication year - 2021
Publication title -
international journal of rf and microwave computer‐aided engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.335
H-Index - 39
eISSN - 1099-047X
pISSN - 1096-4290
DOI - 10.1002/mmce.22603
Subject(s) - dielectric resonator antenna , optoelectronics , optics , resonator , reconfigurability , antenna gain , bandwidth (computing) , materials science , antenna efficiency , physics , dipole antenna , antenna (radio) , telecommunications , computer science
A novel metamaterial inspired small array Fabry‐Perot Resonator cavity antenna is designed over a wide‐band dielectric resonator antenna to enhance gain and bandwidth operating at C‐band applications. Further, the cavity resonator is modified with the application of 12 no. of RF p‐i‐n diodes between the upper layer of the posterior unit‐cells to achieve the polarization reconfigurability (PR) keeping the bandwidth, gain and efficiency intact. The overall dimension of the proposed antenna is 0.8 λ × 0.8 λ × 0.56 λ. With the PR architecture, the antenna imparts 4.8 GHz bandwidth operating between 4 and 8.8 GHz with an average simulated efficiency of 72% and an average gain of 20 dBi throughout the operating band. The specific alignment of the diode polarity enables the model to obtain left‐handed circular polarization and/or right‐handed circular polarization.