Design and measurement data for a microwave dual-CP antenna using a new traveling-wave feed concept

Author

Lum, Kum Meng ; Tick, Timo ; Free, Charles ; Jantunen, Heli

Author_Institution

Inst. of Infocomm Res., Singapore

Volume

54

Issue

6

fYear

2006

fDate

6/1/2006 12:00:00 AM

Firstpage

2880

Lastpage

2886

Abstract

Design and measurement data are presented that show how the novel concept of a traveling-wave-fed circular-polarization (CP) microstrip antenna can be extended to provide an antenna with dual CP. A new refinement to the basic antenna structure is also introduced that shows that the efficiency of radiation can be enhanced by using a dual dielectric to improve the fringing fields at the edges of the radiating patches by around 40%. Furthermore, new theoretical and simulated data are introduced to support the original traveling-wave feed concept

Keywords

antenna feeds; microstrip antennas; microwave antennas; polarisation; travelling wave tubes; circular-polarization; fringing fields; microstrip antenna; microwave dual-CP antenna; radiating patches; traveling-wave feed; Antenna feeds; Antenna measurements; Dielectrics; Microstrip antenna arrays; Microstrip antennas; Microwave antennas; Microwave measurements; Polarization; Slot antennas; Slotline; Circular polarization (CP); dual polarization; patch antenna; traveling wave;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/TMTT.2006.875463

Filename

1643629