Title :
Broadband FDTD design of Fermi antenna for passive millimeter wave imaging
Author :
Sato, Hiroyasu ; Sawaya, Kunio ; Wagatsuma, Yoshihiko ; Mizuno, Koji
Author_Institution :
Graduate Sch. of Eng., Tohoku Univ., Sendai
Abstract :
The broadband FDTD analysis of the Fermi antenna as a receiving element of passive millimeter-wave imaging is presented. The Fermi antenna is a type of the tapered slot antennas (TSA) and has a taper profile expressed by Fermi-Dirac function as well as a corrugation on the side of the substrate. A design of Fermi antenna with the axially symmetric radiation pattern was already reported in our previous paper at 35 GHz. In this paper, the radiation pattern with changing the parameters of a Fermi antenna is investigated in a broad frequency range of 30-50 GHz. A design of Fermi antenna which has an axially symmetric radiation pattern in a broad frequency range is presented
Keywords :
antenna radiation patterns; broadband antennas; finite difference time-domain analysis; millimetre wave antennas; millimetre wave imaging; slot antennas; 30 to 50 GHz; Fermi antenna; Fermi-Dirac function; axially symmetric radiation pattern; broadband FDTD design; passive millimeter wave imaging; receiving element; tapered slot antennas; Antenna radiation patterns; Broadband antennas; Finite difference methods; Frequency; Image analysis; Millimeter wave communication; Millimeter wave technology; Receiving antennas; Slot antennas; Time domain analysis;
Conference_Titel :
Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, 2005. MAPE 2005. IEEE International Symposium on
Conference_Location :
Beijing
Print_ISBN :
0-7803-9128-4
DOI :
10.1109/MAPE.2005.1617863
