Design of a cylindrical CRLH leaky-wave antenna using conformal mapping

Author

Hosseini, Kianoush ; Atlasbaf, Zahra

Author_Institution

Satellite Communications Laboratory, Faculty of Electrical and Computer Engineering, Tarbiat Modares University, Tehran, Iran

fYear

2012

Firstpage

33

Lastpage

36

Abstract

The detailed design steps of a cylindrical leaky-wave antenna are presented. The configuration is assumed to be singly-curved, meaning that the curvature is constant in the longitudinal axis of the antenna. First, A CRLH (Composite Right/Left Handed) unit cell is designed on the planar structure for transition frequency 1.4 GHz and Bloch impedance near 50 Ω at the frequency range 1–3.5 GHz. Then, the resulting leaky-wave antenna on the planar structure which is composed of 10 unit-cells is transformed back to the conformal cylindrical configuration showing good agreement in their S-parameters and radiation patterns. The designed antenna has a satisfactory return loss in its radiation frequency range 1.2–2 GHz where its broadside radiation occurs at 1.4 GHz.

Keywords

Antenna radiation patterns; Capacitors; Conformal mapping; Fingers; Impedance; Leaky wave antennas; Leaky-wave antennas; conformal antennas; conformal mapping; microstrip antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications (IST), 2012 Sixth International Symposium on

Conference_Location

Tehran, Iran

Print_ISBN

978-1-4673-2072-6

Type

conf

DOI

10.1109/ISTEL.2012.6482949

Filename

6482949