Influence of profile shape on the bandwidth of a rotationally symmetric monopole

Author

Simpson, Ted

Author_Institution

Univ. of South Carolina, Columbia, SC, USA

fYear

2010

fDate

11-17 July 2010

Firstpage

1

Lastpage

4

Abstract

Rotationally symmetric antennas with asymptotically conical feed regions exhibit broadband impedance properties that are useful in many applications. The influence of the profile shape on the performance of this type of antenna has been investigated to some extent; but, for rotationally symmetric antennas, this has been limited to a few well-known designs, notably the "volcano smoke" monopole of Kraus, and the "asymptotic conical dipole" (ACD) of Baum. The purpose of this paper is to investigate the combined effect of alterations in the profile and of resistive loading on the impedance bandwidth. To accomplish this, analysis was carried out on a consistent modeling platform using the method of moments on a class of monopole antennas driven by a coaxial feed port and constrained to fit within a fixed hemispherical volume.

Keywords

antenna feeds; conical antennas; dipole antennas; electric impedance; electrical resistivity; monopole antennas; asymptotic conical dipole; asymptotically conical feed region; broadband impedance property; coaxial feed port; impedance bandwidth; profile shape; resistive loading; rotationally symmetric monopole antenna; volcano smoke monopole; Broadband antennas; Broadband communication; Dipole antennas; Impedance; Loading; Shape;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium (APSURSI), 2010 IEEE

Conference_Location

Toronto, ON

ISSN

1522-3965

Print_ISBN

978-1-4244-4967-5

Type

conf

DOI

10.1109/APS.2010.5561695

Filename

5561695