deletions | additions       diff --git a/untitled.tex b/untitled.tex  index b2cde41..7768a58 100644  --- a/untitled.tex  +++ b/untitled.tex 
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We will use $\eta_a$ in this document as the antenna efficiency with   \begin{equation}\label{eq:antenna_efficiency}  \eta_a = \eta_{\text{surface efficiency}} \cdot \eta_{\text{aperture blockage}} \cdot \eta_{\text{feed spillover efficiency}} \cdot \eta_{\text{illumination taper efficiency}}  \end{equation} (as as  defined in \cite{antenna}). \cite{antenna}.  \subsubsection{Quantity}  We will use $N$ in this document as the number of array elements.  \subsection{Pad Aspects} 
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