Microwave Measurements Part II Non-linear Measurements [PDF]
IEEE Instrumentation & Measurement Magazine, 2007 This paper addresses the problems in microwave non-linear measurements. It discusses techniques to synthesize loads, the most used non-linear measurement techniques, and harmonic load-pulling. An experimental setup for characterizing power amplifiers must be able to measure the complex spectrum of the waves at the amplifier ports as a function of ...
CAMARCHIA, VITTORIO +3 more
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Optical Fiber Displacement Sensor Based on Microwave Photonics Interferometry
Sensors, 2018 An optical fiber displacement sensor based on the microwave photonics interferometric (MWPI) method is proposed and experimented, which provides an ideal solution for large range displacement measurement with high resolution.
Hao Dong +4 more
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Microwave-assisted and conventional hydrothermal carbonization of lignocellulosic waste material: comparison of the chemical and structural properties of the hydrochars [PDF]
, 2015 This study compares the chemical and structural properties of the hydrochars prepared from microwave-assisted and conventional hydrothermal carbonizations of Prosopis africana shell, a waste plant material.
Elaigwu, Sunday E., Greenway, Gillian M.
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IEEE Photonics Journal, 2017 We propose and experimentally demonstrate photonic measurement of microwave frequency by utilizing an optomechanical microring resonator (MRR). The pump powers injected into the MRR would result the resonance red-shifts based on nonlinear effects. In the
Li Liu, Huaqing Qiu, Zhi Chen, Zhihua Yu
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Development of a Solid and Flexible Matching Medium for Microwave Medical Diagnostic Systems
Diagnostics, 2021 This paper reports the development of a new composite material as a matching medium for medical microwave diagnostic systems, where maximizing the microwave energy that penetrates the interrogated tissue is critical for improving the quality of the ...
Amin Moradpour +5 more
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Precise measurement of complex permittivity of materials for telecommunications devices
Journal of Telecommunications and Information Technology, 2001 In order to obtain precise complex permittivity of the dielectric materials obtained from the perturbation method a correction curve is made using the electromagnetic field simulator which applies transmission line modeling (TLM) method.
Takayuki Nakamura, Yoshio Nikawa
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Planar Superconducting Resonators with Internal Quality Factors above One Million
, 2012 We describe the fabrication and measurement of microwave coplanar waveguide resonators with internal quality factors above 10 million at high microwave powers and over 1 million at low powers, with the best low power results approaching 2 million ...
Barends, R. +18 more
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APPLICATION OF FLOW GRAPHS IN THE MICROWAVE MEASUREMENTS SYSTEMS
Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska, 2016 Flow graphs are the effective tool for description of the complicated microwave measurement systems and usually are used in the process of creating measurement equation. The algorithm which can find this equation is known as the Mason's gain formula (MGF)
Przemysław Piróg
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Photonic Frequency Down Conversion Approach to Measure Microwave Signal Angle of Arrival
IEEE Photonics Journal, 2022 This paper presents an angle-of-arrival (AOA) measurement system based on microwave photonic frequency down conversion. It has the novelty of no LO is needed for the frequency conversion process. Instead, a ramp waveform is used to shift the frequency of
Chongjia Huang, Erwin Hoi Wing Chan
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Microwave radiometric studies and ground truth measurements of the NASA/USGS Southern California test site [PDF]
, 1969 The field measurement program conducted at the NASA/USGS Southern California Test Site is discussed. Ground truth data and multifrequency microwave brightness data were acquired by a mobile field laboratory operating in conjunction with airborne ...
Edgerton, A. T. +3 more
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