High-Q Embedded LTCC Inductors for high performance RF MCMs

In any RF/Microwave circuit design, an inductor is one of the key elements. However, the process to design an inductor that meets required electrical parameters such as inductance and Quality Factor (Q-factor) can be challenging. With Multi-chip-Modules (MCM) enabling modern RF system miniaturization, the decision of using an on-chip versus off-chip inductor, often poses a dilemma. By showcasing the limitations of realizing on-chip MMIC inductors, this work highlights the advantages of using embedded inductors in Low Temperature Co-fired Ceramic (LTCC) technology with high Quality Factor. Space Application Centre's space-qualified LTCC process using Ferro A6M-E all Gold material is used for benchmarking, in this study.