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In this paper, we introduce a printing technique to reliably metallize PDMS-ceramic composites for multilayer integration. Strong polymer-metal adhesion and stable mechanical/RF performances are achieved via the following steps: (1) surface masking, (2) surface modification, (3) titanium adhesion layer and (4) electroplating. We note that the surface modification and electroplating are newly introduced...
Many mobile structures (aircrafts, ships and automobiles) require conformal antennas for high data rate connectivity, which brings the need for material compatibility and for structurally reinforced antennas. The latter requirement is particularly challenging for small platforms since a large antenna is needed at these frequencies. For small unmanned air vehicles (UAVs) spanning a few feet, it is...
We outline a fabrication and characterization process for composite materials exhibiting uniaxial anisotropy. Our proof-of-concept sample consists of alternating layers of high-contrast homogeneous dielectrics. We describe a finite element-based cavity measurement method to accurately characterize effects of adhesive loss in these assembled samples. In the latter half of the paper, we introduce a...
Given the importance of materials in antenna design, this special session brings together several material scientists to address issues of material fabrication, their properties and their significance. The session addresses the properties and applications of various materials for antenna and microwave applications. Examples of the materials to be discussed in this session are: polymers, liquid crystal...
The need for pliable, multifunctional RF circuits has resulted in the search for low-cost, convenient and flexible techniques, such as soft lithography, where a patterned metal design is printed on a desired polymer substrate. Hence, we present a low-cost and effective method for the formation of micro-patterns on a pliable, low-dielectric constant polymer-ceramic composite substrate for manufacturing...
This paper outlined a new VSIE representation as an alternative to the standard FE-BI methods. This hybrid formulation, based on a specific factorization of the material properties within the solution domain, also allows for the decomposition of the problem into interior and exterior solution subdomains, hence eliminating the need to use a high discretization rate for high permittivity regions. In...
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