Electromagnetic Radiation Principles (Video On Demand)
Credit: 4 PDH
Subject Matter Expert: David Romano, M.S.E.E.
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In Electromagnetic Radiation Principles (Video On Demand), you'll learn ...
- The characteristics of Electromagnetic Radiation (EMR) in different zones
- A comparative history of classical EMR Theory and Quantum Theory
- Propagation of EMR, including Ground-Wave, Sky Wave, and Line-of-Sight
Overview
Preview a portion of the video before you purchase it.
Credit: 4 PDH
In this course, Electromagnetic Radiation (EMR) characteristics are defined and explored in detail. Radiation characteristics in the Near-Field, Fresnel-Zone and Far-Field zones are identified with a view to establish the nature of EM Radiation in the Far-Field. The difference between linearly polarized and circularly polarized EM fields is presented with a view to establishing the need for compatibility between the fields and receiving antennas. Classical EMR Theory is presented including a listing of the four Maxwell’s Equations which treats EMR as radiating fields.
A Quantum Mechanics perspective treating EMR as particles instead of waves is presented and compared to the classical view. History between the classical EMR Theory and the Quantum Theory is presented and discussed in order to achieve an understanding of the fundamental reasons behind the two different perspectives. The discussion eventually leads to the establishment of the “Wave-Particle Duality” of EMR in which waves and Photons are found to be appropriate/complementary representations. The EMR spectrum is presented and discussed to explain both characteristics and applications over its entire frequency range from Radio waves to Gamma Rays.
EMR antennas are described with characteristics and examples that show how these elements are the interface between the source of the EM fields and the transmission medium. Antenna polarization is discussed, and examples of the half-wave dipole, monopole, array, phased array and aperture antennas are discussed with a view to gain an understanding of relative gain, directivity, operational bandwidth, radiation pattern and specific application and/or usage. Radiation patterns of a half-wave dipole and a Yagi-Uda antenna are presented to illustrate the importance and application of directivity and relative gain.
Propagation of EMR is described including Ground-Wave, Sky Wave and Line-of-Sight Propagation with examples and characteristics of each of these three propagation methods. Line-of-Sight is extensively discussed and an example problem is presented to illustrate use of the propagation equation and antenna gain, thermal noise and bandwidth in a satellite-to-earth-station transmission.
Electromagnetic Interference (EMI) is described as an important example of EMR including EMP and Thermal Noise and how these phenomena affect overall EM field transmissions. Examples of naturally occurring and man-made EMI are presented and a manner to implement EMI Prevention methodology is discussed and illustrated. EMI prevention with respect to PCB and long-running cabling is presented as well as an introduction to shielding via an Anechoic Chamber based on Skin-Effect principles. The need for EMI prevention in medical devices applications is also briefly discussed. This course is a recording of a live webinar.
Specific Knowledge or Skill Obtained
This course teaches the following specific knowledge and skills:
- The “Wave-Particle Duality” of EMR
- The EMR spectrum
- EMR antennas and antenna polarization
- How EMR and Thermal Noise affect overall EM field transmissions
Video on Demand
This course is a recorded version of a live lecture and will be streamed directly to your computer's media player. Our format is generally compatible with media players included with all computers and mobile devices. After watching the video presentation, you will return to your account to take the online quiz. While this is a recording of a live presentation, please note that this recording will not qualify as a "live" or "interactive" continuing education activity in those jurisdictions where it is required.
Certificate of Completion
You will be able to immediately print a certificate of completion after passing a multiple-choice quiz consisting of 20 questions. PDH credits are not awarded until the course is completed and quiz is passed.
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Preview a portion of the video before you purchase it.
Credit: 4 PDH
| Add to Cart Purchase using credit card or debit card | Or | Enroll now Enroll for free using my NoonPi Unlimited Plan |
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