A new non-linear method for design and analysis of solid state power amplifiers is presented and applied to an aluminum gallium nitride, gallium nitride (AlGaN-GaN) high electron-mobility transistor (HEMTs) on silicon-carbide (SiC) substrate for Ku band (12.4 13.6 GHz) applications. With combining output power of 8 transistors, maximum output power of 46.3 dBm (42.6 W), PAE of 43% and linear ga...

In this paper satellite wave propagation at Ku and Ka band is considered. The design and simulation of a typical satellite beacon receiver at Ka band is designed and simulated for the future works. Also rain attenuation prediction at Ku band using satellite signal beacon measurement and simulations for Iran Telecommunication Research Center (ITRC) are presented. The measurement setup consists o...

Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 8190395, Japan, Department of Mechanical Engineering Science, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan, International Institute for Carbon Neutral Energy Research (WPI-I2CNER), Kyushu University, Fukuoka 819-0395, Japan, Depa...

The dual-frequency altimeter of Topex allows since few years the observations of earth from 62°N to 62°S both in Ku and in C band. Previous works has been already performed above continental areas by [1, 2, 3, 4] and above the southern part of the Greenland ice sheet [5, 6]. These works show the great interest of a dual-frequency above both for the retrieval of some geophysical parameters and f...

The Ku-band Polarization Identifier (KUPID) will integrate a very low noise 12-18 GHz, correlation polarimeter onto the Crawford Hill seven meter, millimeter-wave antenna. The primary components of the polarimeter will be built at the University of Miami and other key components, including the microwave horn and data acquisition system will be built at the University of Chicago and Princeton Un...

1CyberScience Center, Tohoku University, 6-6-05 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan 2Graduate School of Engineering, Tohoku University, 6-6-05 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan 3 Institute of Development, Aging and Cancer, Tohoku University, Seiryo-machi 4-1, Aoba-ku, Sendai 980-8575, Japan 4Faculty of Mechanical Engineering, Czech Technical University in Prague, Technic...

NATURE PRECEDINGS | 23 FEBRUARY 2009 1 Laboratory of Chemical Pharmacology, Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan, Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan, Precursory Research for Embryonic Science and Technology, Japan Science and Tech...

a Remote Sensing Environmental Monitor, Inc., 4-5-5, Kamariya-nishi, Kanazawaku, Yokohama, Kanagawa, 236-0046, Japan b Key Laboratory of Resources Remote Sensing & Digital Agriculture (Ministry of Agriculture); Institute of Agricultural Resources & Regional Planning, Chinese Academy of Agricultural Sciences, 12, Zhongguancun South Street, Haidian District, Beijing, 100081, PR China c Institute ...