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The efficiency-fractional bandwidth product (EB), which is expressed as a ratio of the radiation resistance to the absolute value of the input reactance of an antenna, is used as a performance criterion for small dielectric loaded monopole antennas (DLMAs). The dependence of the EB on the permittivity of the dielectric loading (i.e., the electrical volume) is experimentally and numerically investigated for the first time in antenna research. As a result, it is found that the EBs of the some DLMAs are enhanced over a bare monopole antenna and an EB characteristic curve has a maximum point. This result suggests the presence of the optimum electrical volume for the dielectric loading in order to obtain the best EB performance. A general reason for the existence of the peak value is also explained using a mathematical deduction. Finally the system EB, which is an efficiency-fractional bandwidth product of the DLMA with a practical matching circuit, is defined and its dependence on the relative permittivity is illustrated. Consequently, the existence of the peak value is also confirmed for the system EBs. In addition, it is demonstrated that the enhancement of the system EB is mainly due to the enhancement in the efficiency of the antenna system.

- Publication
- IEICE TRANSACTIONS on Communications Vol.E84-B No.9 pp.2498-2506

- Publication Date
- 2001/09/01

- Publicized

- Online ISSN

- DOI

- Type of Manuscript
- Special Section PAPER (Special Issue on Innovation in Antennas and Propagation for Expanding Radio Systems)

- Category
- Mobile Antennas

The copyright of the original papers published on this site belongs to IEICE. Unauthorized use of the original or translated papers is prohibited. See IEICE Provisions on Copyright for details.

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Ichirou IDA, Takatoshi SEKIZAWA, Hiroyuki YOSHIMURA, Koichi ITO, "The Efficiency-Fractional Bandwidth Product (EB) of Small Dielectric Loaded Antennas and the System EB" in IEICE TRANSACTIONS on Communications,
vol. E84-B, no. 9, pp. 2498-2506, September 2001, doi: .

Abstract: The efficiency-fractional bandwidth product (EB), which is expressed as a ratio of the radiation resistance to the absolute value of the input reactance of an antenna, is used as a performance criterion for small dielectric loaded monopole antennas (DLMAs). The dependence of the EB on the permittivity of the dielectric loading (i.e., the electrical volume) is experimentally and numerically investigated for the first time in antenna research. As a result, it is found that the EBs of the some DLMAs are enhanced over a bare monopole antenna and an EB characteristic curve has a maximum point. This result suggests the presence of the optimum electrical volume for the dielectric loading in order to obtain the best EB performance. A general reason for the existence of the peak value is also explained using a mathematical deduction. Finally the system EB, which is an efficiency-fractional bandwidth product of the DLMA with a practical matching circuit, is defined and its dependence on the relative permittivity is illustrated. Consequently, the existence of the peak value is also confirmed for the system EBs. In addition, it is demonstrated that the enhancement of the system EB is mainly due to the enhancement in the efficiency of the antenna system.

URL: https://global.ieice.org/en_transactions/communications/10.1587/e84-b_9_2498/_p

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@ARTICLE{e84-b_9_2498,

author={Ichirou IDA, Takatoshi SEKIZAWA, Hiroyuki YOSHIMURA, Koichi ITO, },

journal={IEICE TRANSACTIONS on Communications},

title={The Efficiency-Fractional Bandwidth Product (EB) of Small Dielectric Loaded Antennas and the System EB},

year={2001},

volume={E84-B},

number={9},

pages={2498-2506},

abstract={The efficiency-fractional bandwidth product (EB), which is expressed as a ratio of the radiation resistance to the absolute value of the input reactance of an antenna, is used as a performance criterion for small dielectric loaded monopole antennas (DLMAs). The dependence of the EB on the permittivity of the dielectric loading (i.e., the electrical volume) is experimentally and numerically investigated for the first time in antenna research. As a result, it is found that the EBs of the some DLMAs are enhanced over a bare monopole antenna and an EB characteristic curve has a maximum point. This result suggests the presence of the optimum electrical volume for the dielectric loading in order to obtain the best EB performance. A general reason for the existence of the peak value is also explained using a mathematical deduction. Finally the system EB, which is an efficiency-fractional bandwidth product of the DLMA with a practical matching circuit, is defined and its dependence on the relative permittivity is illustrated. Consequently, the existence of the peak value is also confirmed for the system EBs. In addition, it is demonstrated that the enhancement of the system EB is mainly due to the enhancement in the efficiency of the antenna system.},

keywords={},

doi={},

ISSN={},

month={September},}

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TY - JOUR

TI - The Efficiency-Fractional Bandwidth Product (EB) of Small Dielectric Loaded Antennas and the System EB

T2 - IEICE TRANSACTIONS on Communications

SP - 2498

EP - 2506

AU - Ichirou IDA

AU - Takatoshi SEKIZAWA

AU - Hiroyuki YOSHIMURA

AU - Koichi ITO

PY - 2001

DO -

JO - IEICE TRANSACTIONS on Communications

SN -

VL - E84-B

IS - 9

JA - IEICE TRANSACTIONS on Communications

Y1 - September 2001

AB - The efficiency-fractional bandwidth product (EB), which is expressed as a ratio of the radiation resistance to the absolute value of the input reactance of an antenna, is used as a performance criterion for small dielectric loaded monopole antennas (DLMAs). The dependence of the EB on the permittivity of the dielectric loading (i.e., the electrical volume) is experimentally and numerically investigated for the first time in antenna research. As a result, it is found that the EBs of the some DLMAs are enhanced over a bare monopole antenna and an EB characteristic curve has a maximum point. This result suggests the presence of the optimum electrical volume for the dielectric loading in order to obtain the best EB performance. A general reason for the existence of the peak value is also explained using a mathematical deduction. Finally the system EB, which is an efficiency-fractional bandwidth product of the DLMA with a practical matching circuit, is defined and its dependence on the relative permittivity is illustrated. Consequently, the existence of the peak value is also confirmed for the system EBs. In addition, it is demonstrated that the enhancement of the system EB is mainly due to the enhancement in the efficiency of the antenna system.

ER -