By Karp-Lipton Theorem we have:$$PH\subseteq P/poly\Rightarrow PH=\Sigma^p_2$$So this theorem suggest it is unlikely that $PH\subseteq P/poly$.I want to know is there any similar conditional or unconditional theorems that study relationship between $LinH$ and $P/poly$?Thanks!   
Linear Time Hierarchy and Circuit complexity
cc.complexity theory;complexity classes;circuit complexity;polynomial hierarchy