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Crédits ECTS : 4.0
The goal of this course is to explore the theory, design and characterization techniques of the main passive circuits appearing in wireless communication systems: power dividers, matching networks, couplers, baluns, filters, …
Only passive circuits based on distributed approach (transmission lines) will be addressed, in PCB, CMOS/BiCMOS and alternative technologies, from RF to mm-wave circuits. The circuits are based on classical transmission lines like microstrip, coplanar or SIW (Substrate Integrated Waveguide), but a large focus will be done on new transmission lines based on slow-wave concepts, including slow-wave CPW, slow-wave microstrip and slow-wave SIW. The design of tunable passive circuits will also be discussed. The characterization techniques will be explored in theory and in practical labs.
Content: S parameters, ABCD, Y & Z matrices. Smith chart, matching networks. Signal-flow diagram. Classical low-profile transmission lines: microstrip, coplanar (CPW & CPS). Substrate integrated waveguides (SIW). Slow-wave structures. Design of power dividers, matching networks, couplers, baluns, filters, phase shifters. Characterization and de-embedding techniques.