Consideraciones sobre el papel del Estado
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New Bandpass Filters Using Half-Wavelength and Branch-Line Resonators
... bandpass filters using λ/2 and branch-line resonators have been ...of filters which utilize both λ/2 and λ/4 resonators without a significant increment in circuit ...branch- line resonators ...
Dimensional Synthesis for Wide-Band Bandpass Filters with Quarter-Wavelength Resonators
... coaxial filters synthesis, it is necessary to derive two rectangular coaxial structures as the K-inverter and J ...the wavelength changes with the ...transmission line phase can be expressed ...
MMI filters configuration for dual-wavelength generation in a ring cavity erbium-doped fibre laser
... MMI filters were constructed to obtain the fourth self-image by using a NCF (in which air acts as clad- ding) with 125 μm ...transmission wavelength peaks of ...a wavelength range from 1465 to 1650 ...
Microstrip Bandpass Filters Based on Inductive-Coupled Stepped-Impedance Quarter-Wavelength Resonators
... carried out to improve the performance of this kind of filter. Among them, the source-load coupling is a promising method used to create more transmission zeros [2, 3]. Nevertheless, the source-load coupling structure ...
Novel Class of Microstrip Bandpass Filters with Improved Upper Rejection Band
... bandpass filters with improved upper rejection level. The proposed filters are both composed of two half-wavelength resonators and two-shorted feed lines for I/O ...feed line are ...feed ...
Design and simulation of non-zero and zero dispersion optical lattice wavelength filters
... digital filters, it is still not possible to realize an optical filter device with a larger number of delay lines due to the chip space restriction and optical losses ...
Design and Development of Recessed Ground Microstrip Line Low Pass Filters
... microstrip line would remain identical to conventional microstrip line, as shown in ...microstrip line vary with the change in parameters a and t air ...
The Puzzle of the La I Lines 6520 644 Å and 6519 869 Å
... fluorescence line (f in Figure 4): it increases, since the interaction of the laser light with the atoms causes a higher population of the upper level of the excited ...LIF line has its maximum intensity at ...
Ultraviolet filters in stomatopod crustaceans: diversity, ecology and evolution
... UV filters recently identified in the crystalline ...UV filters. Furthermore, the UV filters were probably present in early stomatopods, and they have since been elaborated, and occasionally lost, ...
Unit-III.ppsx
... • The single-stub matching technique is superior to the quarter wavelength transformer as it makes use of only one type of transmission line for the main line as well[r] ...
Development of Computer Interface and Data Analysis Software for Multi-Wavelength Radiometer
... The user has to select the serial port by using the dropdown menu. The software will receive the data string from CDU and provide an online display. The data string from MWR contains $ as starting character, date, time, ...
Subwavelength grating waveguide devices for telecommunications applications
... Subwavelength structures have attracted considerable interest over the years and the first demonstration of an optical waveguide with an SWG metamaterial reported less than 10 years ago has fueled the development of PICs ...
Modular Analog Current and Voltage Preamplifier System with State Variable Filters and Computer Control Interface
... The amplifier module consists of an input stage to amplify differential and single-ended voltages by two different user- selectable gain factors. It can also be switched to a current-to- voltage converter with three ...
A robust method for tuning photoacoustic gas detectors
... For the given resonator, laser power, and lock-in integration time constant, a lower limit of photoacoustic detection of the order of 200 ppm was estimated, based on the noise floor. The results also confirm the initial ...
The sedimentary geochemistry of the Moffat Shales : a carbonaceous sequence in the Southern Uplands of Scotland
... Regression line parameters for the dispersion of mean reflectance values of graptolite fragments in oil with wavelength for selected samples from Hartfell... Regression line parameters f[r] ...
A Miniaturized Branch-Line Coupler with Wideband Harmonics Suppression
... as θ less than 45 ◦ , which leads to a miniaturized structure. Fig. 4 shows the schematic of the proposed branch-line coupler. It is noticed that the open stub Z o represents Z s1 in parallel with Z s2 . To ...
On-Line Learning of Linear Dynamical Systems: Exponential Forgetting in Kalman Filters
... Previously, subspace identification methods (van Over- schee and de Moor 1996) achieved significant advances in the learning of LDS. For a sequence of observations gen- erated from an LDS, this family of methods allows ...
Recovery of absorption line shapes with correction for the wavelength modulation characteristics of DFB lasers
... Carrier density modulation results in modulation of the refractive index and hence the output laser wavelength. Several factors are responsible for the carrier density modulation including re- laxation ...
Microstrip Line Low Pass Filters Based on Metamaterial Component
... different filters are available for different ...microwave filters have been one of the challenges for microwave communication ...pass filters are often an important component in RF circuits and ...
Energization of a Half Wavelength Transmission Line Pre Operational Transients Studies
... from line energization and the vol- tage profile along the line without reactive compensation, for the half-wavelength transmission ...the line with a little more than half-wavelength ...