Lumped inductor, HMIC and MMIC — Lesson 3

This lesson covers the fundamental aspects of inductors in Microwave Integrated Circuit (MIC) applications. It delves into the different forms of inductors, their effective inductance, and the associated parasitic capacitance. The lesson also discusses the parameters to consider when selecting an inductor for a specific application, such as self-resonant frequency, maximum current rating, and maximum power rating. It further explores the realization of inductance using spirals, loops, and bond wires. The lesson concludes with an overview of hybrid and monolithic MIC technologies, highlighting their salient features, advantages, and disadvantages.

Video Highlights

00:28 - Introduction to inductors and effective inductance
04:44 - Different forms of inductors and their realization
05:53 - Design considerations for spiral inductors
08:41 - Microwave integrated circuits (MIC)
11:09 - Discussion on HMIC
15:13 - Brief overview of monolithic microwave integrated circuits
22:03 - Advantages and disadvantages of MMICs
25:54 - Discussion on the materials used in microwave integrated circuits

Key Takeaways

- Inductors in MIC applications can take the form of single or multiple bond wires, wire bond chip inductors, or lumped inductors.
- The effective inductance of an inductor is a crucial parameter due to the associated parasitic capacitance.
- Several factors need to be considered when selecting an inductor, including self-resonant frequency, maximum current rating, and maximum power rating.
- Inductors can be realized using spirals, loops, and bond wires, with their inductance depending on specific dimensions.
- Hybrid and monolithic MIC technologies offer different advantages and disadvantages, and the choice between them depends on the specific application.