[PDF] Top 20 Desenvolvimento de um instrumento de avaliação funcional da motilidade intestinal
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Substrate Integrated Waveguide Directional Coupler in Ku and Ka Bands
... in Ka band shows that the RSIW [2][4] basically has the same guided-wave characteristics as the conventional rectangular ...equivalent waveguide width are obtained in close-form expressions from ... See full document
10
Rain Rate and Rain Attenuation Prediction for Satellite Communication in Ku and Ka Bands Over Nigeria.
... Abstract—Rain rate and rain attenuation predictions are one of the vital steps to be considered when analyzing a microwave satellite communication links at the Ku and Ka bands. In this paper, tools ... See full document
6
Seasonal variations of the backscattering coefficient measured by radar altimeters over the Antarctic Ice Sheet
... and Ka bands are unimodal with a peak in summer for a lower frequency (WP: 11 %, SP: 66 %, using the summer and winter periods previously defined) and a peak in winter for a higher frequency (WP: 50 %, SP: ... See full document
8
Optimal Design of a Ku/Ka-Band Wide-Flare-Angle Corrugated Horn Using the Differential Evolution Algorithm
... full Ku/Ka bands by using the DE algorithm ...operating bands, which validates the effectiveness of the design method and the superiority of the proposed horn ...full Ku/Ka ... See full document
104
Directional Coupler Using Multi-Stage Coupled Structure Theory
... new directional coupler design, which can increase power capacity working with S ...of directional coupler, coupling flatness and power ...coupling directional coupler (TSCDC), ... See full document
8
Partially Dielectric-Filled Empty Substrate Integrated Waveguide Design for Millimeter-Wave Applications
... empty substrate integrated waveguide (PFESIW) is introduced for millimeter-wave application alongside partially dielectric-filled ESIW filter by using inverter and resonators ...a waveguide ... See full document
9
The Study Of Transmisson From Planer To SIW Structure
... rectangular- waveguide components are voluminous and expensive to manufacture, which inevitably make the planar/nonplanar integration bulky and costly ...rectangular waveguide into the microstrip ...the ... See full document
126
Novel Wideband Multilayer Butler Matrix Using CB-CPW Technology
... Line crossovers have been one of the main drawbacks of Butler matrices since they take more space and may add undesired effects, such as increased insertion loss and additional line cross couplings [5]. Many ... See full document
478
User Interface For Dbas Data Collections (Alert System Interface)
... This paper focuses on the study of the transmission from planar to SIW structure. The goals of this thesis are to research the various types of transition between microstrip lines to Substrate Integrated ... See full document
156
Loss Reduction in Substrate Integrated Waveguide Structures
... It is shown in [5] that minimum losses have been accomplished with the vias that have large diameter and are close together. Dielectric loss is the major source of loss in SIW and is significantly larger than the two ... See full document
104
Design And Fabrication Of Substrate Integrated Waveguide Bandstop Filter
... bentuk Substrate Integrated Waveguide (SIW) bandstop ...daripada Substrate Integrated Waveguide (SIW) resonator rongga yang digabungkan dengan garis jalur ... See full document
1
Planar Eight Port Waveguide Mono-Pulse Comparator
... short-slot waveguide directional couplers and four phase shifters ...the directional coupler led by 90 ◦ , phase delays are required at the positions shown ... See full document
234
Counter directional polariton coupler
... We show an exemplaric characterization of a waveguide coupled to a microdisk in Fig. 1. The measurements have been performed at 5 K on a straight part of a waveguide. Figure 1 b) shows the emission ... See full document
23
A Compact Wideband Bandpass Filter Using Novel CSRR Loaded QMSIW Resonator with High Selectivity
... The lumped-element equivalent-circuit model (see Figure 8) has been derived to demonstrate the transmission characteristics. Material losses are neglected in the model. As seen in Figure 8, the QMSIW can be considered as ... See full document
205
Substrate Integrated Waveguide Circular Antenna for Terahertz Application
... Abstract—This paper presents a multi-band annular ring antenna that is obtained from a single- layer probe-fed substrate integrated waveguide based on a graphene material, with three top plan slits. ... See full document
12
Compact Directional Coupled-Line Coupler with Independent Power Division Ratios at Dual Bands
... requirements of various communication protocols at different bands. Moreover, it has a compact size due to the usage of coupled lines rather than transmission lines. Explicit design equations and design guide of ... See full document
187
Substrate Integrated Waveguide Without Metallized Wall Posts
... Substrate Integrated Waveguide (SIW) [1] is one of the front runners in emerging planar waveguide technologies for millimeter wave ...rectangular waveguide where metal clad on both ... See full document
7
Cavity-Backed Dumbbell-Shaped Slot Antenna for C-Band Application
... the substrate thickness of ...the substrate as it approaches the optimum distance of one fourth of guided wavelength between slot antenna and reflector behind ... See full document
45
MoM Analysis and Design of a Compact Coaxial to Microstrip Directional Coupler
... required. Waveguide Bethe-hole couplers are used in high power applications [3], but are not a practical solution for broad-band ...coaxial directional couplers using air dielectrics are a traditional ... See full document
115
A Simplified Implementation of Substrate Integrated Non-Radiative Dielectric Waveguide at Millimeter-Wave Frequencies
... Abstract—The substrate integrated non-radiative dielectric (SINRD) guide presents a rather complicated process of design and implementation because of multiple interrelated design parameters involved in the ... See full document
181
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