Title :
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
fDate :
6/1/2006 12:00:00 AM
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;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2006.875463
