An Indepth Evaluation of High Frequency Circuit Laminates for the Wireless Telecommunication Market

Growth in the wireless telecommunication market. An important part to the systems is the laminate material chosen to carry the high frequency carrier signals. Available to desipers today is a wide range of materials ranging from the low cost difunctional epoxy/glass (FR4) to the high performance PTFE based laminates. This work focuses on critical electrical properties of the various laminate options and their stability against frequency and temperature. The effect of changing electrical properties is also quantified by measuring the impact on RF/microwave circuitry.