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As the requirements for wireless systems become more complex, researchers and designers are turning to unique technologies for solutions. In support of this, a new design that uses biocomposite filaments to additively manufacture substrates for microstrip transmission lines is presented here. In particular, the measured complex permittivity of the material manufactured with three different biocomposite...
Additive manufacturing is becoming more affordable and in recent years new techniques on implementing this emerging technology into microwave circuits are being developed. Therefore, understanding the propagation behavior of printed microstrip transmission lines implemented with these manufacturing techniques is needed. In this paper, the use of flexible and semi-rigid filaments to create substrates...
A key component in the design of a printed Van Array is the requirement of the transmission line (TL) interconnects between the elements to be a factor of the operating wavelength. This results in interconnects that introduce a 2π phase shift. Traditionally, meander-lines have been used to design these interconnects; however, one drawback is the large space required for the layout. In this paper,...
Conformal antennas printed on thin flexible sub-strates typically use copper conductors for the radiating portion of the designs. This paper presents an alternative to using copper conductors. More particularly, a novel compact monopole on a thin transparent substrate with 25 µm thick flexible graphene-based conductors for the radiating portion of the design is presented. The design was modeled in...
The use of graphene-based conductors (GBC) as a transmission line (TL) is presented as a conventional TL possessing right-handed (RH) nature and its coupling characteristics are investigated. In order to verify and demonstrate the wave propagation of a GBC TL, a 120 mm long 50 Ω TL was fabricated and tested. Performance of the single GBC TL was then compared to the conventional microstrip TL, analyzing...
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