Graduate School of Information Science and Electrical Engineering, Kyushu University, JAPAN

Biography: Haruichi Kanaya was born in Yamaguchi, Japan, in 1967. He received the B.S. (Physics) degree from Yamaguchi University in 1990, and the M.E. (Applied Physics) and D.E. degrees from Kyushu University in 1992 and 1994, respectively.
In 1994, he became a Research Fellow (PD) of the Japan Society for the Promotion of Science. In 1998, he was a visiting scholar at the Massachusetts Institute of Technology (MIT), USA.
He is currently engaged in the study and design of RF CMOS devices and energy harvesting device, and miniaturized, planar, flexible or array antennas, as an Associate Professor in the Department of Electronics, Graduate School of Information Science and Electrical Engineering, and also System LSI Research center, Kyushu University. Dr. Kanaya is a member of the Institute of Electrical and Electronics Engineers (IEEE).

Speech Title: 5 GHz-band Circularly Polarized One Sided Directional Slot Antenna
Abstract: In this paper, we presents novel antenna design about a circularly polarized one-sided directional slot type antenna with bottom reflector metal for 5 GHz-band application. A slot antenna layer, a floating metal layer and reflector metal layer are stacked. Additional slots were attached on the top slot antenna layer in order to enhance the antenna gain, and for realizing the one-sided directional radiation, the floating metal layer was placed to the bottom of the slot antenna layer. The additional reflector metal on the dielectric substrate is attached to the bottom of the antenna. The proposed antenna dimension with reflector metal layer is 22.6 mm × 22.6 mm × 6.926 mm on a FR4 substrate. The proposed antenna has a 4.59 dBic circularly polarized gain in measurement.
Keywords: Circularly polarized antenna, one-sided directional antenna