Title :
Stability of Step-tapered Design Alteration in Radius of Elements on Radiation Characteristics of Yagi-Uda Antennas
Author :
Nonoyama, Ritsuo ; Maeda, Tadahiko
Author_Institution :
Grad. Sch. of Sci. & Eng., Ritsumeikan Univ., Shiga
Abstract :
The radiation pattern of an optimized Yagi-Uda antenna does not suffer from the minor radius alteration (such as 1/2: 50% reduction or 1/4: 75 % reduction) of elements even if the alteration is uniform for entire elements. The minor step-tapered design alteration in radius of radiating elements greatly affects the radiation characteristics of the Yagi-Uda antenna, which is originally designed with the uniform radius. However, the step-tapered radius element structure of Yagi-Uda antenna shows the stable radiation characteristics in terms of the radius alteration.
Keywords :
Yagi antenna arrays; antenna radiation patterns; Yagi-Uda antennas; antenna radiation pattern; minor step-tapered design alteration; stability; Antenna theory; Business communication; Communication industry; Design engineering; Dipole antennas; Frequency; Ham radios; Stability; Structural engineering; Wireless communication;
Conference_Titel :
Antenna Technology: Small Antennas and Novel Metamaterials, 2008. iWAT 2008. International Workshop on
Conference_Location :
Chiba
Print_ISBN :
978-1-4244-1522-9
DOI :
10.1109/IWAT.2008.4511401
