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Recent Patents on Electrical Engineering

Editor-in-Chief

ISSN (Print): 1874-4761
ISSN (Online): 2213-1132

Compact Helical Antennas - A Review

Author(s): Nelson J.G. Fonseca and Herve Aubert

Volume 3, Issue 1, 2010

Page: [1 - 9] Pages: 9

DOI: 10.2174/1874476111003010001

Price: $65

Abstract

In this paper, some of the most relevant patents of the last ten years on compact helical antennas are reviewed. Different technical solutions and their respective advantages and limitations are discussed. Both monofilar and quadrifilar helical antennas are addressed with different radiation characteristics. Some of these techniques can eventually be combined to improve further the axial length reduction. Only cylindrical designs are addressed in this paper, but most of the concepts could easily be applied to other shapes of helical antennas.

Keywords: Helical, helix antennas, monofilar, quadrifilar antennas, normal, axial modes radiation


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