title: High Performance, 3D-Printable Dielectric Nanocomposites for Millimeter Wave Devices.
abstract: The creation of millimeter wave, 3D-printable dielectric nanocomposite is demonstrated. Alumina nanoparticles were combined with styrenic block copolymers and solvent to create shear thinning, viscoelastic inks that are printable at room temperature. Particle loadings of up to 41 vol % were achieved. Upon being dried, the highest-performing of these materials has a permittivity of 4.61 and a loss tangent of 0.00298 in the Kaband (26.5-40 GHz), a combination not previously demonstrated for 3D printing. These nanocomposite materials were used to print a simple resonator device with predictable pass-band features.
authors.affiliation: MIT Lincoln Laboratory , 244 Wood Street, Lexington, Massachusetts 02421, United States.
authors.forename: Michael
authors.initials: M
authors.lastname: Lis
authors.affiliation: MIT Lincoln Laboratory , 244 Wood Street, Lexington, Massachusetts 02421, United States.
authors.forename: Maxwell
authors.initials: M
authors.lastname: Plaut
authors.affiliation: MIT Lincoln Laboratory , 244 Wood Street, Lexington, Massachusetts 02421, United States.
authors.forename: Andrew
authors.initials: A
authors.lastname: Zai
authors.affiliation: MIT Lincoln Laboratory , 244 Wood Street, Lexington, Massachusetts 02421, United States.
authors.forename: David
authors.initials: D
authors.lastname: Cipolle
authors.affiliation: MIT Lincoln Laboratory , 244 Wood Street, Lexington, Massachusetts 02421, United States.
authors.forename: John
authors.initials: J
authors.lastname: Russo
authors.affiliation: MIT Lincoln Laboratory , 244 Wood Street, Lexington, Massachusetts 02421, United States.
authors.forename: Theodore
authors.initials: T
authors.lastname: Fedynyshyn
keywords: 3D printing; Ka band; dielectrics; direct write; millimeter wave; nanocomposites