Results 61 to 70 of about 3,120,441 (282)
A High Directivity Microstrip Coupler Based on Reflective Resistors [PDF]
RadioengineeringIn this paper, a novel high-directivity microstrip coupler based on reflective resistors is presented. The proposed coupler consists of three pairs of coupled-line sections and one pair of resistors.
L. Guo +4 more
doaj
Doppler Spread in Reverberation Chamber Predicted From Measurements During Step-Wise Stationary Stirring [PDF]
, 2010 We propose a simple method to accurately predict Doppler spread in a reverberation chamber (RC) by using frequency domain S-parameters measured with a vector network analyzer (VNA) at many fixed stirrer positions (step-wise stationary mode).
Carlsson, Jan +3 more
core +1 more source
FEBS Letters, EarlyView.We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee +3 more
wiley +1 more source
Evaluation of Thermoplastic Vulcanizates in Radomes
Journal of Aerospace Technology and Management, 2020 The present paper evaluates a thermoplastic vulcanizate (TPV) of polypropylene (PP) and nitrile rubber (NBR), with and without carbon nanotube (CNT), with a potential application in structures that protect radar antennas, radomes. Morphological analysis,
Alessandra de A. P. Gabino +2 more
doaj
Synthesis of coupling matrix for lossy filter networks [PDF]
, 2015 A generalized method for the synthesis of lossy microwave filters is given in this paper. An equation on the polynomials of S parameters is given to replace the power conservation.
Hunter, IC, Meng, M
core +1 more source
FEBS Letters, EarlyView.In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai +9 more
wiley +1 more source
Impedance Matching Optimization of RF Networks
Engineering ProceedingsThe subject of this publication is a synthesized description of an S-parameter linear analysis for the improvement of a particular RF amplifier. The model is applied in a simulation environment as a 100–500 MHz two-port device under test with control of ...
Miroslav Tomov +2 more
doaj +1 more source
Cylindrical Dielectric Resonator Antenna-Based Sensors for Liquid Chemical Detection
Sensors, 2019 A compact, cylindrical dielectric resonator antenna (CDRA), using radio frequency signals to identify different liquids is proposed in this paper. The proposed CDRA sensor is excited by a rectangular slot through a 3-mm-wide microstrip line.
Amjad Iqbal +5 more
doaj +1 more source
, 2014 An original experimental method for determining the empirical probability distribution function (PDF) of the quality factor (Q) of a mode-stirred reverberation chamber is presented.
Andries, Mihai I. +3 more
core +3 more sources
Contactless electromagnetic measuring system using conventional calibration algorithms to determine scattering parameters [PDF]
, 2007 In this paper, a contactless measuring system for the determination of the S-parameters of planar circuits is presented. With a contactless measuring system it is possible to characterise a device-under-test (DUT) embedded in a planar circuit environment
Eul, H., Rabe, H., Zelder, T.
core +3 more sources