Title :
Millimeter wave sensor using cylindrical Luneberg lens with flat sides
Author :
Kikuchi, Kazuo ; Kido, Yasuo ; Ogawa, Takashi
Author_Institution :
Dept. of Commun. Eng., Nat. Defense Acad., Yokosuka, Japan
fDate :
4/1/1998 12:00:00 AM
Abstract :
The cylindrical lens with flat sides, which has the focal point just on the surface of the lens, is developed by using an artificial low-loss dielectric material, and the design of the lens is also given. The characteristics of the cylindrical lens fabricated in Teflon, and a millimeter-wave sensor, consisting of a millimeter-wave (MMW) antenna mounted at the focus, are also investigated at 40 GHz band. MMW sensors with the beam width of 16° and gain of 15.6 dB were obtained
Keywords :
antenna radiation patterns; lens antennas; millimetre wave antennas; millimetre wave detectors; receiving antennas; refractive index; 15.6 dB; 40 GHz; MM-wave antenna; Teflon; antenna pattern; artificial low-loss dielectric material; cylindrical Luneberg lens; dielectric planar lens; flat sides; lens design; millimeter wave sensor; three-step refractive index; Dielectric materials; Electromagnetic scattering; Equations; Focusing; Gain; Lenses; Optical design; Refractive index; Sensor phenomena and characterization; Surface waves;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
