Microwave Components and Circuits

Pre-Requisite: EC204
Contact Hours and Credits: ( 3 -0- 0 ) 3


The subject introduces the essential Microwave Circuit Theory and the design aspects of Microwave Integrated Circuit components.

Topics Covered:

Scattering matrix formulation. Passive microwave devices; terminations, bends, corners, attenuators, phase changers, directional couplers and hybrid junctions. Basics and design considerations of Microstripline, strip line, coplanar waveguide, Slot line and Finline

Microwave measurements; frequency, wavelength, VSWR. Impedance determination. S-parameter measurements. Network analyzer.

Microwave network parameters. Basic circuit elements for microwaves. Transmission line sections and stubs. Richard transformation. Kuroda identities.

MIC filter design. Low pass to high pass, band pass and band stop transformations. Realization using microstrip  lines and strip lines.

Design and realization of MIC components.3 dB hybrid design. Ratrace Hybrid Ring, Backward wave directional coupler, power divider; realization using microstrip lines and strip lines.

Course Outcomes:

Students are able to 

  • CO1: Learn the basics of S parameters and use them in describing the components
  • CO2: Expose to  the Microwave Measurements Principle
  • CO3: Realize the importance of the theory of Microwave circuit theory.
  • CO4: Work out  the complete design aspects of various M.I.C. filters
  • CO5:Confidently design all M.I.C. components to meet the industry standard

 Text Books:

  • I.J. Bahl & P. Bhartia, Microwave Solid state Circuit Design, Wiley, 2003.
  • D.M. Pozar, Microwave Engineering (2/e), Wiley, 2004.

Reference Books:

  • Annapoorna Das, Microwave Engineering, Tata McGraw Hill, 2000
  • Bharathi Bhat, Shiben K Koul, Stripline like transmission lines for Microwave Integrated Circuits . New age International Pvt. Ltd. Publishers 2007.