Title :
Ultra-wideband circular polarized microstrip Archimedean spiral antenna loaded with chip-resistor
Author :
Kinezos, C. ; Ungvichian, V.
Author_Institution :
Florida Atlantic Univ., FL, USA
Abstract :
In this paper, an ultra-wideband (UWB) right hand circular polarized (RHCP) low-profile microstrip Archimedean spiral antenna operating with a chip-resistor load is presented. The radiating spiral patch is implemented on a typical FR4 printed circuit board (PCB) and is center fed through an SMA surface-mount connector. A chip-resistor loading at the outer edge of the spiral provides an excellent bandwidth for the impedance matching. From experiments, the antenna offers a VSWR-<2 about 180% and a 3 dB axial ratio of 133%. The maximum antenna gain is determined to be -3.36 dBi at 10 GHz.
Keywords :
antenna radiation patterns; broadband antennas; impedance matching; microstrip antennas; spiral antennas; 10 GHz; Archimedean spiral antenna; FR4 board; antenna gain; axial ratio; chip-resistor load; frequency independent antenna; impedance matching; low-profile microstrip antenna; radiating spiral patch; radiation pattern; right hand circular polarized antenna; surface-mount connector; ultrawideband antenna; Bandwidth; Connectors; Impedance matching; Loaded antennas; Microstrip antennas; Polarization; Printed circuits; Spirals; Ultra wideband antennas; Ultra wideband technology;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2003. IEEE
Conference_Location :
Columbus, OH, USA
Print_ISBN :
0-7803-7846-6
DOI :
10.1109/APS.2003.1219922
