Title :
Analysis of edge effect on millimeter-sized planar logarithmic spiral antennas
Author :
Tomioka, Hiroto ; Suhara, Michihiko ; Okumura, Tsugunori
Author_Institution :
Electr. Eng., Tokyo Metropolitan Univ., Japan
Abstract :
Effect of edge configurations of millimeter sized planar-logarithmic-spiral-antenna (PLSA) was analyzed. It is found that an external ring electrode and taper conducting arms contribute to lowering a lower side of critical frequency at which the VSRW becomes two. The low VSWR domain extends up to terahertz region for all types of edge configuration. The size dependence of the critical frequency and spatial Poynting´s power distribution are estimated for different edge configuration.
Keywords :
antenna accessories; broadband antennas; spiral antennas; critical frequency; edge configuration effects; external ring electrode; low VSWR domain; millimeter-sized planar logarithmic spiral antennas; spatial Poynting power distribution; taper conducting arms; Analytical models; Arm; Broadband antennas; Electrodes; Frequency estimation; Infrared detectors; Polyimides; Power distribution; Slot antennas; Spirals;
Conference_Titel :
Microwave Conference Proceedings, 2005. APMC 2005. Asia-Pacific Conference Proceedings
Print_ISBN :
0-7803-9433-X
DOI :
10.1109/APMC.2005.1606960
