Methods and apparatus for using humidity level to adjust the temperature set point of an HVAC system for increased occupant comfort. An in-phase processing path and a quadrature processing path of the RF mixer may utilize a single shared GM stage. The conductive material layer preferably comprises a titanium layer and a titanium-nitride layer arranged on top of one another. An initial guess is provided to a solution for a system of equations formed using the equation set for each of the cells. The other end of the connector 16 then attaches to another length of cable 12 and to another connector plug 10 on the end of the cable 12.