Comparison of the Optimal Uniform and Nonuniform Lossy Helical Antennas

被引：1

作者：

Dinkic, Jelena ^{[1
]}

Olcan, Dragan ^{[1
]}

Djordjevic, Antonije ^{[1
]}

Zajic, Alenka ^{[2
]}

机构：

[1] Univ Belgrade, Sch Elect Engn, Belgrade 11120, Serbia

[2] Georgia Inst Technol, Sch Elect & Comp Engn, Atlanta, GA 30332 USA

来源：

2020 IEEE INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION AND NORTH AMERICAN RADIO SCIENCE MEETING | 2020年

关键词：

helical antennas; optimization;

D O I：

10.1109/IEEECONF35879.2020.9330063

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We present results for comparison of gain of the optimal uniform and nonuniform helical antennas taking into the account conductor losses. Critical conductivities are observed, for the given operating frequency and the helix axial length. Above the critical conductivity, the gain of the nonuniform helical antennas with linearly varying geometrical parameters is up to 2 dB higher than the gain of the optimal uniform antennas. However, below the critical conductivity, the difference between the gain of the nonuniform and uniform helical antennas is reduced, and the gain of those antennas becomes comparable. Data for the normalized critical conductivities are presented.

引用

页码：423 / 424

页数：2

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