Archimedean and Equiangular Slot Spiral Antennas for UWB Communications

Author

Zhang, Yongwei ; Brown, A.K.

Author_Institution

Microwave & Commun. Syst. Res. Group, Manchester Univ.

fYear

2006

fDate

10-15 Sept. 2006

Firstpage

1578

Lastpage

1581

Abstract

Archimedean and planar equiangular slot spiral antennas are two candidate geometries with circular polarization for ultra-wideband applications. This paper compares the time domain response of these two kinds of antennas with approximately the same outer radius. The use of a substrate underneath the spiral is used to improve the impedance matching; this also makes the antenna dimensions compatible with portable electronic devices. The Archimedean microstrip antenna has better return loss performance, but the equiangular slot spiral antenna cause less pulse distortion. In UWB communications, the characteristics of antennas in time domain can be of importance. In particular, the cross correlation function between the source signal applied to a transmitting antenna and the output signal from an identical receive antenna have been investigated

Keywords

electromagnetic wave polarisation; impedance matching; microstrip antennas; slot antennas; spiral antennas; ultra wideband antennas; ultra wideband communication; Archimedean microstrip antenna; UWB communications; circular polarization; equiangular slot spiral antennas; impedance matching; receive antenna; time domain response; transmitting antenna; ultra wideband applications; Geometry; Impedance matching; Microstrip antennas; Polarization; Receiving antennas; Slot antennas; Spirals; Ultra wideband antennas; Ultra wideband communication; Ultra wideband technology; Archimedean; equiangular; spiral; time-domain;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2006. 36th European

Conference_Location

Manchester

Print_ISBN

2-9600551-6-0

Type

conf

DOI

10.1109/EUMC.2006.281400

Filename

4058145