Results 1 to 10 of about 37,561 (266)
Известия высших учебных заведений России: Радиоэлектроника, 2022 Introduction. Duplex satellite communication is commonly arranged using two spaced frequency bands, with one band receiving and the other band transmitting signals to a satellite.
S. V. Polenga +9 more
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Effect of wall thickness on broadband design of a Ka-band TE21-mode coupler
Journal of Electronic Science and Technology, 2021 Commonly, the classical formulas for designing TE21-mode coupler are suitable for the operating frequency under Ka-band by virtue of ignoring wall thickness.
Wei Zheng +3 more
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Estimating Mean Surface Backscatter from GPM Surface Backscatter Observations
Eng, 2021 The radar on the Global Precipitation Measurement (GPM) mission observes precipitation at 13.6 GHz (Ku-band) and 35.6 GHz (Ka-band) and also receives echoes from the earth’s surface. Statistics of surface measurements for non-raining conditions are saved
Stephen L. Durden
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Dual-Band Dual-Linearly Polarized Transmitarray at Ka-Band
2020 50th European Microwave Conference (EuMC), 2021 We present here the design and optimization of a dual-band dual linearly-polarized transmitarray antenna with a 1bit phase resolution (i.e. two phase states with 180° of relative phase-shift). The antenna operates in both downlink and uplink K/Ka-bands (17 – 21 GHz for the lower frequency band, and 27 – 31 GHz for the upper one) and could be used for ...
Madi, Reda +2 more
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Annals of Geophysics, 2014 Cloud cover statistics, cloud base and top height, cloud temperature, frequency of precipitation, freezing height, total cloud liquid water content (TCLWC) and cloud attenuation data have been obtained for the six major climatic zones of Africa.
Temidayo Victor Omotosho +2 more
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Design of a Dual Band SNG Metamaterial Based Antenna for LTE 46/WLAN and Ka-Band Applications
IEEE Access, 2021 The non-existing properties of the metamaterial surfaces can be utilized to improve the antenna radiation characteristics. In this article, a design and performance analysis of a Single Negative (SNG) metamaterial based antenna is imparted for LTE 46 ...
Muhammad Asif +8 more
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Frontiers in Remote SensingPassive microwave observations at Ka-band (36‐37 GHz) have been widely available for decades, but their full potential for land applications has been hardly exploited. This study analyzed Ka‐band observations at different spatial scales.
Richard de Jeu +6 more
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Estimating Ocean Vector Winds and Currents Using a Ka-Band Pencil-Beam Doppler Scatterometer
Remote Sensing, 2018 Ocean surface currents and winds are tightly coupled essential climate variables, and, given their short time scales, observing them at the same time and resolution is of great interest.
Ernesto Rodríguez +6 more
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IET Microwaves, Antennas & PropagationA miniaturised high‐isolation K‐/Ka‐band diplexer with exceeding adjacent channels using 3D antarafacial channel integration and vertical‐quasi‐coaxial‐based matching network is proposed.
Yujin Zhou +4 more
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Satellite television transmission in the world - broadcasting systems and standards
Acta Scientiarum: Technology, 2020 This paper considers the characteristics of satellite television transmission in the world. An overview of the development of satellite television is given through the following characteristics: broadcasting systems - analog and digital (SDTV, HDTV ...
Branimir Jaksic +4 more
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