Title :
FDTD analysis of 81-element antipodal Fermi antenna array with axially symmetric array element pattern
Author :
Sato, Hiroyasu ; Murakami, Yoshiyasu ; Sawaya, Kunio ; Mizuno, Koji
Author_Institution :
Grad. Sch. of Eng., Tohoku Univ., Sendai
Abstract :
FDTD analysis of APFA array as a receiving elements for real time PMMW imaging has been presented. It has been demonstrated that the mutual coupling among APFA elements significantly decreases by the presence of corrugation. Furthermore, an axially symmetric array element pattern having a beam width of about 60deg is obtained for the 9 times 9 element APFA array, which is suitable for f/D=1 optics. Numerical and experimental study of the array element pattern for all array elements is remaining as future works.
Keywords :
antenna radiation patterns; electromagnetic coupling; finite difference time-domain analysis; millimetre wave antenna arrays; millimetre wave imaging; receiving antennas; 81-element APFA array; FDTD analysis; antipodal fermi antenna array; axially symmetric array element pattern; finite difference time-domain analysis; mutual coupling; passive millimeter wave imaging; real time PMMW imaging; receiving antenna; Antenna arrays; Antennas and propagation; Broadband antennas; Finite difference methods; Frequency; Mutual coupling; Optical arrays; Optical imaging; Pattern analysis; Time domain analysis;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2008. AP-S 2008. IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4244-2041-4
Electronic_ISBN :
978-1-4244-2042-1
DOI :
10.1109/APS.2008.4619578
