Journal
OPTICAL MATERIALS
Volume 85, Issue -, Pages 456-463Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.optmat.2018.09.015
Keywords
Graphene antenna; Higher order modes; Proximity coupling; THz band; Wideband
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A proximity coupled wideband graphene patch antenna is proposed for THz applications. Antenna resonates with the closely placed higher order TM1 delta modes (4 <= delta <= 12 or more). The generation of the large number of modes with resonant frequencies close to each other provides the wideband response. The wideband graphene antenna is modeled to obtain the optimum values of physical parameters. The antenna parameters are defined for the impedance matching and tuning of the frequency response. Varying the physical parameters, the antenna response can also be tuned to obtain the multiband response. The proposed antenna enables to achieve 109.25% impedance bandwidth.
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