Development of molded liquid crystal polymer surface mount packages for millimeter wave applications

We present the development of molded liquid crystal polymer (LCP) surface mount packages for millimeter wave applications. We show that a coplanar waveguide transmission line on a molded liquid crystal polymer has a measured insertion loss of less than 0.16 dB/mm. The LCP quad flat no-lead (QFN) has demonstrated a return loss of less than -16dB and insertion loss of less than -1.2 dB at 25 GHz.