In this paper, we design and analyze receiver channels of a glass interposer for a 5G small cell front end module (FEM). In RF systems, a 50 ohm impedance matching is important for RF channels to guarantee the target RF sensitivity of the RF system. Receiver channels of glass interposers for the 5G small cell FEM are designed, analyzed and characterized up to 40 GHz considering the impedance matching. Using the designed receiver channels, the glass interposer based the 5G small cell FEM is designed and analyzed up to 40 GHz.