Analysis, simulation and measurements of CBS antennas loaded with non-uniformly biased ferrite material

Victor G. Kononov, Constantine Balanis, Craig R. Birtcher

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

When ferrite materials are used in the design of the CBS antennas, they are usually magnetized by the applied magnetic field produced by an electromagnet or permanent magnets. In modeling of such antennas, it is common practice to ignore the actual distribution of the applied field and assume it is uniform. We demonstrate that such an assumption leads to inaccurate results when the applied field is severely non-uniform. In contrast to the previous formulations, a formulation presented here leads to accurate modeling and simulated results compare very well with measurement for both uniform and non-uniform field distributions. The utility of the proposed approach is especially evident for the case when the applied magnetic field is severely non-uniform.

Original languageEnglish (US)
Article number6142015
Pages (from-to)1717-1726
Number of pages10
JournalIEEE Transactions on Antennas and Propagation
Volume60
Issue number4
DOIs
StatePublished - Apr 2012

Fingerprint

Ferrite
ferrites
antennas
Antennas
Magnetic fields
formulations
Electromagnets
electromagnets
magnetic fields
permanent magnets
Permanent magnets
magnets
simulation

Keywords

  • Cavity-backed antenna
  • CBS antenna
  • ferrite-loaded antenna
  • non-linear magnetostatic problem
  • non-uniform applied field
  • non-uniform biasing field

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Analysis, simulation and measurements of CBS antennas loaded with non-uniformly biased ferrite material. / Kononov, Victor G.; Balanis, Constantine; Birtcher, Craig R.

In: IEEE Transactions on Antennas and Propagation, Vol. 60, No. 4, 6142015, 04.2012, p. 1717-1726.

Research output: Contribution to journalArticle

@article{d6e8cccca4b047bcaf03d62f8bc568ef,
title = "Analysis, simulation and measurements of CBS antennas loaded with non-uniformly biased ferrite material",
abstract = "When ferrite materials are used in the design of the CBS antennas, they are usually magnetized by the applied magnetic field produced by an electromagnet or permanent magnets. In modeling of such antennas, it is common practice to ignore the actual distribution of the applied field and assume it is uniform. We demonstrate that such an assumption leads to inaccurate results when the applied field is severely non-uniform. In contrast to the previous formulations, a formulation presented here leads to accurate modeling and simulated results compare very well with measurement for both uniform and non-uniform field distributions. The utility of the proposed approach is especially evident for the case when the applied magnetic field is severely non-uniform.",
keywords = "Cavity-backed antenna, CBS antenna, ferrite-loaded antenna, non-linear magnetostatic problem, non-uniform applied field, non-uniform biasing field",
author = "Kononov, {Victor G.} and Constantine Balanis and Birtcher, {Craig R.}",
year = "2012",
month = "4",
doi = "10.1109/TAP.2012.2186245",
language = "English (US)",
volume = "60",
pages = "1717--1726",
journal = "IEEE Transactions on Antennas and Propagation",
issn = "0018-926X",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "4",

}

TY - JOUR

T1 - Analysis, simulation and measurements of CBS antennas loaded with non-uniformly biased ferrite material

AU - Kononov, Victor G.

AU - Balanis, Constantine

AU - Birtcher, Craig R.

PY - 2012/4

Y1 - 2012/4

N2 - When ferrite materials are used in the design of the CBS antennas, they are usually magnetized by the applied magnetic field produced by an electromagnet or permanent magnets. In modeling of such antennas, it is common practice to ignore the actual distribution of the applied field and assume it is uniform. We demonstrate that such an assumption leads to inaccurate results when the applied field is severely non-uniform. In contrast to the previous formulations, a formulation presented here leads to accurate modeling and simulated results compare very well with measurement for both uniform and non-uniform field distributions. The utility of the proposed approach is especially evident for the case when the applied magnetic field is severely non-uniform.

AB - When ferrite materials are used in the design of the CBS antennas, they are usually magnetized by the applied magnetic field produced by an electromagnet or permanent magnets. In modeling of such antennas, it is common practice to ignore the actual distribution of the applied field and assume it is uniform. We demonstrate that such an assumption leads to inaccurate results when the applied field is severely non-uniform. In contrast to the previous formulations, a formulation presented here leads to accurate modeling and simulated results compare very well with measurement for both uniform and non-uniform field distributions. The utility of the proposed approach is especially evident for the case when the applied magnetic field is severely non-uniform.

KW - Cavity-backed antenna

KW - CBS antenna

KW - ferrite-loaded antenna

KW - non-linear magnetostatic problem

KW - non-uniform applied field

KW - non-uniform biasing field

UR - http://www.scopus.com/inward/record.url?scp=84859786892&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84859786892&partnerID=8YFLogxK

U2 - 10.1109/TAP.2012.2186245

DO - 10.1109/TAP.2012.2186245

M3 - Article

AN - SCOPUS:84859786892

VL - 60

SP - 1717

EP - 1726

JO - IEEE Transactions on Antennas and Propagation

JF - IEEE Transactions on Antennas and Propagation

SN - 0018-926X

IS - 4

M1 - 6142015

ER -