In this thesis, we investigated the surface composition and orientation of both pure
room-temperature ionic liquids (Ils) and binary mixtures of the ILs of the type
consisting of the 1-alkyl-3-methylimidazolium ([C[subscropt n]mim]⁺, n=4, 8, and 12) cation
coupled with either [PF₆]⁻, [BF₄]⁻, [Cl]⁻, or [Br]⁻. The surfaces of the ILs...
Embedded passives in multi-layer media have gained importance for offering an attractive solution to the implementation of off-chip passive components in RF and mixed signal circuits, especially for wireless applications. Among the passive devices, power dividers and combiners are extensively used for a host of applications including balanced mixers, phase...
This thesis presents an adaptive modulation scheme using a Walsh-code
modulator. The Walsh-code modulator consists of a dynamic demultiplexer and
predetermined sets of orthogonal Walsh-Hadamard codes. The demultiplexer can demultiplex
the input bit stream into a maximum of thirty-two sub-streams. The Walsh-
Hadamard codes are used to spread the spectrum...