Chapter 9 Guided Electromagnetic WavesSeveral wave guiding systems, Electromagneticwaves in rectangular and circular waveguidesCoaxial line,Cavityresonator1.TEMWave,TEWave,andTMWave2. Equations for Electromagnetic Waves in RectangularWaveguides3.Characterization of Electromagnetic Waves in RectangularWaveguides4.TE1oWave in RectangularWaveguides5. Group Velocity6.Circular Waveguides7.TransmittedPowerand LossinWaveguides8.ResonantCavity9. Coaxial Lines7
Chapter 9 Guided Electromagnetic Waves Several wave guiding systems, Electromagnetic waves in rectangular and circular waveguides Coaxial line，Cavity resonator 1. TEM Wave, TE Wave, and TM Wave 2. Equations for Electromagnetic Waves in Rectangular Waveguides 3. Characterization of Electromagnetic Waves in Rectangular Waveguides 4. TE10Wave in Rectangular Waveguides 5. Group Velocity 6. Circular Waveguides 7. Transmitted Power and Loss in Waveguides 8. Resonant Cavity 9. Coaxial Lines
The electromagneticwaves to be transmitted alongaconfined path are called guided electromagnetic wavesand the systems to transmitthe guided electromagneticwaves are called the wave guiding systemsTwo-wire line, coaxialline, strip line, microstrip, andmetal waveguides are often used in practice.we will discuss the metal waveguides and the coaxiallineonlyU
The electromagnetic waves to be transmitted along a confined path are called guided electromagnetic waves, and the systems to transmit the guided electromagnetic waves are called the wave guiding systems. Two-wire line, coaxial line, strip line, microstrip, and metal waveguides are often used in practice. we will discuss the metal waveguides and the coaxial line only
Two-wireCoaxial lineCircularRectangularlinewaveguidewaveguideDielectric waveguide,Strip lineMicrostriplineFiberoptic
Strip line Two-wire line Rectangular waveguide Microstrip line Dielectric waveguide, Fiber optic Coaxial line Circular waveguide
1.TEM Wave,TEWave,and TMWaveFLHTEM waveTEwaveTM waveThe wave guiding systems in which an electrostatic field can existmust beableto transmit TEM waveFrom Maxwell's equations we can prove that the metal waveguidecannot transmitTEM wave
1. TEM Wave, TE Wave, and TM Wave TEM wave E H es TE wave E H es TM wave E H es The wave guiding systems in which an electrostatic field can exist must be able to transmit TEM wave. From Maxwell’s equations we can prove that the metal waveguide cannot transmit TEM wave
The main properties of several wave guiding systemsEMWave typesWave bandSystemsshieldingTEM wavPoor>3mTwo-wirelineGood> 10cmCoaxiallineTEM waveTEM wavePoorCentimeterStrip linePoorCentimeterMicrostriplineQuasi-TEMwaveRectangularCentimeterGoodTE or TM waveMillimeterwaveguideCircularCentimeterGoodTEorTM waveMillimeterwaveguidePoorFiberopticTEorTM waveOptical waveu7
Systems Wave types EM shielding Wave band Two-wire line TEM wav Poor > 3m Coaxial line TEM wave Good > 10cm Strip line TEM wave Poor Centimeter Microstrip line Quasi-TEM wave Poor Centimeter Rectangular waveguide TE or TM wave Good Centimeter Millimeter Circular waveguide TE or TM wave Good Centimeter Millimeter Fiber optic TE or TM wave Poor Optical wave The main properties of several wave guiding systems