diff --git a/paper/paper.tex b/paper/paper.tex index cdfa7db..2326df8 100644 --- a/paper/paper.tex +++ b/paper/paper.tex @@ -21,6 +21,7 @@ \usepackage{graphicx,color} \usepackage{colortbl} \usepackage{subcaption} +\usepackage{placeins} \usepackage{array} \usepackage{censor} \usepackage{hyperref} @@ -36,11 +37,17 @@ \date{} \title{Wireless Power Transfer with a Twist: -Achieving Rotation-Invariant Coupling using Multi-Layer PCB Inductors} +Achieving Rotation-Invariant Coupling using Twisted Multi-Layer PCB Inductors} \maketitle \begin{abstract} - % FIXME + We present \emph{twisted inductors}, a generalization of planar single- or two-layer spiral inductors as well as + planar toroidal inductors. Compared to conventional planar spiral inductors, twisted inductors generate a magnetic + field with better rotational symmetry, resulting in decreased output ripple in Wireless Power Transfer applications + with an axially rotating receiver. Additionally, we found that twisted inductors can simultaneously yield a + significantly improved self-resonant frequency and a higher inductance in the same area as a conventional planar + spiral inductor, up to \qty{50}{\percent} improved SRF and \qty{6.5}{\percent} increased inductance among our test + samples. We base our conclusions on several simulations and an extensive set of practical measurements. \end{abstract} \section{Introduction} @@ -882,20 +889,8 @@ set of tools for the generation of twisted inductor layouts that we wrote can be \printbibliography[heading=bibintoc] -\clearpage +\FloatBarrier \appendix -\section{Layout examples} -\label{sec_appendix_layout_examples} - -\begin{figure*} - \begin{center} - \includegraphics[width=.75\textwidth]{figures/nk_complex_illust.pdf} - \end{center} - \caption{Layout examples for a number of combinations of turn count $n$ and inversion count $k$. Note that in this - illustration we chose values for $n$ and $k$ such that all pairs are coprime.} - \label{fig_nk_complex_illust} -\end{figure*} - \section{Supplemental plots} \begin{figure} @@ -923,4 +918,16 @@ set of tools for the generation of twisted inductor layouts that we wrote can be \label{fig_rms_ripple_n25} \end{figure} +\section{Layout examples} +\label{sec_appendix_layout_examples} + +\begin{figure*} + \begin{center} + \includegraphics[width=.75\textwidth]{figures/nk_complex_illust.pdf} + \end{center} + \caption{Layout examples for a number of combinations of turn count $n$ and inversion count $k$. Note that in this + illustration we chose values for $n$ and $k$ such that all pairs are coprime.} + \label{fig_nk_complex_illust} +\end{figure*} + \end{document}