سرفصل و ریز محتوا دوره آنتن و مایکروویو

سرفصل و ریز محتوا دوره آنتن و مایکروویو

Introduction to Microwave Engineering

Waveguides and Transmission Lines

TEM transmission line theory, lossy transmission lines

Coaxial line and two wire line

Guided wave theory: TE and TM modes in hollow metallic waveguides, waveguide losses, equivalent transmission line

Rectangular and circular waveguides

Transverse resonance method and dielectric filled rectangular waveguide

Ridged waveguide

Microstrip line

Strip line

(*) Coplanar waveguide (CPW)

Microwave Network Analysis

Impedance [Z] and admittance [Y] matrices

Power waves, scattering parameters [S], generalized scattering parameters

Fundamental properties of microwave network parameters: Poynting theorem, Reciprocity theorem, Foster reactance theorem

Transfer matrices for two-port networks

Multi-section quarter wave transformer design: Chebyshev and Binomial transformers

(*) Tapered line impedance matching

Excitation of Waveguides and Waveguide Discontinuities

Radiation from arbitrary currents inside waveguides

Excitation by coaxial probes and current loops

Coupling by apertures, apertures on transverse wall and broad wall of rectangular waveguide

Obstacles and discontinuities in waveguides and their equivalent circuits: capacitive, inductive, and resonant irises, capacitive screw

Discontinuities and junctions in microstrip lines

Passive Microwave Components

Basic components: mode filters, matched load, sliding short, fixed and variable attenuators, waveguide twist, phase shifters

Basic properties of couplers and dividers

Waveguide directional coupler, Bethe hole coupler design

Quadrature hybrid, hybrid ring, Magic-T and their applications

Power divider: T junctions, Wilkinson power divider

Coupled transmission lines: microstrip directional coupler, Lange coupler

Microwave Resonators

Fundamentals of resonant circuits, quality factor, coupling factor

Transmission line resonators, microstrip patch resonator

Microwave cavity resonators: circular and rectangular

Coupling to cavity resonators, equivalent circuit of cavity resonators

Coupling to transmission line resonators

Various types of one port and two port resonant circuits

Dielectric resonators, microstrip patch resonators

Ferromagnetic Devices

Microwave ferrites, permeability tensor, wave propagation in ferrite medium, Faraday rotation, Birefringence

Ferrite loaded waveguides

Non-reciprocal microwave components: Gyrator, Isolator, Circulators, non-reciprocal phase shifter

Microwave Filters

(*) Fundamentals of filter design and synthesis based on insertion loss

(*) Chebyshev and Butterworth prototypes

(*) Frequency and impedance transformations

(*) Transmission line filters: Richard�s transformation, Kuroda identities

(*) Impedance and admittance inverters

(*) Stepped impedance low pass filters

(*) Parallel coupled line filters

(*) Coupled resonator filters

(*) Interdigital and combline filters

(*) Direct coupled waveguide filters

(*) If time permits (*)

مدت زمان دوره:      ساعت