Title :
Characteristics of TCAS circular phased array antennas for moment method
Author :
Kawakami, Haruo ; Sato, Gentei
Author_Institution :
Fac. of Sci. & Technol., Sophia Univ., Tokyo, Japan
Abstract :
The authors present an analysis of the top-loaded, low-profile TCAS (traffic alert and collision avoidance system) antenna, a disk-loaded folded-type monopole antenna. Particular emphasis is placed on the input impedance and the pattern when eight elements are arranged in circular form. The analysis is based on the wire-grid moment method. The results are compared with measured values and agree fairly well.<>
Keywords :
antenna phased arrays; antenna radiation patterns; electric impedance; TCAS; circular phased array antennas; disk-loaded folded-type monopole antenna; input impedance; radiation pattern; traffic alert and collision avoidance system; wire-grid moment method; Airplanes; Antenna arrays; Antenna theory; Directive antennas; Frequency; Impedance; Loaded antennas; Moment methods; Phased arrays; Receiving antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1989. AP-S. Digest
Conference_Location :
San Jose, CA, USA
DOI :
10.1109/APS.1989.134960
