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fbtwitterlinkedinvimeoflicker grey 14rssslideshare1
Hamilton, Dean P.
Languages: English
Types: Doctoral thesis
Subjects: QA, TK

Classified by OpenAIRE into

arxiv: Physics::Optics
A novel method for graphically and mathematically representing the dispersion characteristics\ud of electromagnetic dielectric structures is presented. The method has been used to develop\ud closed-form formulas to find the longitudinal propagation constant and useful frequency\ud range for a number of popular rectangular dielectric waveguide types. These formulas are\ud presented in terms of their material dependency and are guide size and operating frequency\ud independent. Their form is so trivial that these characteristics can now be found in just a few\ud seconds using a basic calculator, yet still with second order accuracy. In addition,\ud improvements have been made to a number of well-known formulas normally associated with\ud periodic grating leaky-wave antennas. These improvements allow the width of the metal strip\ud grating to be taken into consideration to derive the correct main beam angle, array factor\ud pattern and grating limits. Previously, the grating width was neglected by the formulas and the\ud resulting error was unacceptably high.
  • The results below are discovered through our pilot algorithms. Let us know how we are doing!

    • 5. DETERMINING DIELECTRIC GUIDE CHARACTERISTICS 5.1 Introduction ........................................................................................................... 5-2 5.1.1 Rectangular dielectric waveguides ............................................................... 5-2 5.1.2 Analysis and numerical methods ................................................................. 5-2 5.1.3 Dispersion plots ............................................................................................ 5-3 5.1.4 Finding a size and material compromise ...................................................... 5-3 5.1.5 Objectives ..................................................................................................... 5-..l 5.2 Computing the guide characterisitcs ..................................................................... 5-5 CHARACTERISTICS OF ADDITIONAL GUIDE CONFIGURATIONS
    • 6. 1 Introduction........................................................................................................... 6-2 6.2 Characteristics for additional guide aspect ratios ................................................. 6-2 6.~.1 Suitable range of aspects .............................................................................. 6-3 6.~.2 Computed frequency results for all asp~cts.................................................. 6-3 10. CONCLUSIONS & RECOMMENDATIONS 10.1 Ne\\ \\ay to represent dispersion characteristics of rectangular dielectric \\'aveguides....................................................................................................................... 10-1 0 D I X R I C F R E Q U E N C Y
  • Inferred research data

    The results below are discovered through our pilot algorithms. Let us know how we are doing!

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