A study of LF top-loaded monopole antennas using numerical modeling techniques
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A study of LF top-loaded monopole antennas using numerical modeling techniques comparison to scaled test model measurements by Riaz Mahmud

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Published by Naval Postgraduate School in Monterey, Calif .
Written in English


  • Mathematical models,
  • Electrical and computer engineering,
  • Antennas (Electronics)

Book details:

Edition Notes

Other titlesNPS 62-87-010.
Statementby Riaz Mahmud
The Physical Object
Pagination67 p. :
Number of Pages67
ID Numbers
Open LibraryOL25497848M

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  This thesis studies the electrical properties of a low frequency top-loaded monopole antenna. Several configurations of the antenna are developed using numerical modeling techniques. The electrical properties are calculated and compared with a set of measurements of a scaled test model. The results are presented in the form of design curves and comparison : Riaz Mahmud. A study of LF top-loaded monopole antennas using numerical modeling techniques: comparison to scaled test model measurementsAuthor: Riaz. Mahmud. In book: Frontiers in Antennas (pp) A V-band on-chip triangular planar monopole antenna implemented with a partially reflective surface (PRS) using standard μm BiCMOS technology. The radiation pattern of a λ /4 monopole antenna mounted at the center of the roof of a car is shown in Figure The effects of the earth ground are included using the Fresnel reflection coefficients. The relative complex dielectric constant of the earth is ε g = 10 – car was modeled using a wire grid as shown in the figure.

In the same book, the author derived simple formulas for the characteristic impedances [5]: In Equation 6, η is the impedance of free space and ai is the radius of the antenna section. The quasi-static wave number k’ is [6]: In Equation 7, γ is Euler’s constant (). UNIVERSITY OF LEEDS INVESTIGATION OF L OADED M ONOPOLE A NTENNA B Y N IKOLAOS — H RISSOVALANTIS V ARDALAHOS P ROJECT S UPERVISOR: M. B. S TEER Submitted in accordance with the requirements for the degree of Master of Science (Eng.) in Radio Communication and High Frequency Engineering. Abstract - In this study, the standard methods of monopole antenna calibration are interrogated and the use of alternative methods is investigated. For this purpose, the GTEM cell has been used for two standard identical monopole antenna calibrations. The dummy antenna (≈10pF by ANSI, ≈12pF by CISPR), which is suggested as. Computer Antenna Modeling Simplified – KE5KJD An exposure to the benefits of computer modeling using software. Compiled from the Internet for the AARA Ham Radio Club - Archie asked me a few months ago if I would be interested in presenting some information to the club about antenna modeling. Not being an expert in the.

use antenna modeling CAD software or some combination of the two. Much of the material in this book was derived using CAD modeling, EZNEC Pro4 v6[3] (with the NEC engine) and AutoEZ[4] an EXCEL spreadsheet which automates many modeling functions were used. These are very good tools but except for buried. This thesis introduces a new technique of impedance matching using lumped circuits (passive, lossless) for electrically small nonresonant dipole/monopole antennas.-short A closed form upper-bound on the achievable transducer gain (and therefore the reflection coefficient) is derived starting with the Bode-Fano criterion. A 5 element. TOP‐LOADED MONOPOLE LF ANTENNAS—An Application Engineering Guide. CAPTAIN JOHN C. WALTER. USNR RET. THE AUTHOR: is a consultant on VLF and high power radio systems for the U. S. Navy. He is attached to the Naval Shore Electronics Engineering Center, Washington, the Command responsible for all Shore Electronics design and installation within. Antenna modeling used to be the domain of scientists and engineers with very expensive antenna ranges covering acres and acres of land strewn with expensive equipment. With the proliferation of personal computers and affordable (even free) software, antenna modeling has become a .