DocumentCode :
2641952
Title :
Sequential-rotation arrays of circularly polarized CPW-fed aperture antennas in the MCM-D technology
Author :
Soliman, Ezzeldin A. ; Brebels, Steven ; Beyne, Eric ; Vandenbosch, Guy A E ; Mertens, Robert
Author_Institution :
IMEC, Leuven, Belgium
fYear :
1999
fDate :
22-24 Nov. 1999
Firstpage :
129
Lastpage :
132
Abstract :
This paper describes the design and characterization of a 2×2 sequential-rotation array (SRA) of novel circularly polarized antenna elements. The required feed phase-vector is achieved using a coplanar feeding network. The network is, for the first time, built using CPW lines in MCM-D technology. The array operates in the K-band around 25 GHz. The analysis is carried out both theoretically and experimentally. The results show that the sequential rotation increases the axial ratio bandwidth and enhances the isolation between the RHCP and LHCP polarizations. The proposed antenna element and sequential-rotation array enjoy high impedance bandwidth, high circular polarization bandwidth, and good isolation between the RHCP and the LHCP modes.
Keywords :
antenna feeds; aperture antennas; coplanar waveguides; electromagnetic wave polarisation; microwave antenna arrays; multichip modules; rotation; 10.9 to 36 GHz; 25 GHz; CPW lines; K-band operation; MCM-D technology; RHCP/LHCP mode isolation; RHCP/LHCP polarization isolation; antenna element; axial ratio bandwidth; circular polarization bandwidth; circularly polarized CPW-fed aperture antennas; circularly polarized antenna elements; coplanar feeding network; feed phase-vector; impedance bandwidth; sequential rotation; sequential-rotation array; sequential-rotation arrays; Antenna arrays; Aperture antennas; Bandwidth; Bridges; Coplanar waveguides; Feeds; Impedance; Isolation technology; Linear antenna arrays; Optical polarization;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Microelectronics, 1999. ICM '99. The Eleventh International Conference on
Print_ISBN :
0-7803-6643-3
Type :
conf
DOI :
10.1109/ICM.2000.884822
Filename :
884822
Link To Document :
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