![]() ![]() Dewesoft has 16 subsidiaries and over 35 authorized distributors around the world.ĭewesoft download center is a place for all Dewesoft downloads. Traceable calibration and worldwide warranty services for our data acquisition systems and sensors.įind the closest Dewesoft sales and support office in your area. Cables, adapters, displays, batteries, and everything else that satisfies your testing needs. Supported interfaces Storing options Data visualizations Data processing Reporting and export Version matrixĭevices that extend our analog data acquisition systems such as CAN and CAN FD bus interfaces, telemetry devices, GPS/GNSS navigational devices, and cameras.Īccessories that perfectly fit our data acquisition systems. The DewesoftX is the only software from Dewesoft driving our data acquisition systems. The world's most intuitive and easy-to-use data acquisition (DAQ), data recording, and data processing software. Our data acquisition and control devices offer high-quality signal conditioning, data recording, signal processing, and real-time control front-end in a single device. All DAQ systems offer IP67 degrees of protection and are thus waterproof, dustproof, and shock-resistant up to 100G. Rugged DAQ device can withstand a maximum temperature range from -40 ☌ to 85 ☌.ĭata acquisition and real-time control merged in a single easy-to-use device. Rugged data acquisition systems and data loggers for testing in harsh environments. From small, portable DAQ devices to all-in-one systems with high-channel-count, integrated processing computer, display, and batteries. Our DAQ products are the ultimate tools for every test and measurement engineer.Ĭutting-edge data acquisition systems for the most precise measurement of any signal and sensor. The stubs are to be short-circuited stubs and are spaced λ/8 apart.Easy-to-use data acquisition systems you will ♥ at work. Determine the stub length lB required to produce the reactance/susceptance to move the rotated impedance/admittance to the origin.Įxample: Design a double-stub shunt tuner to match a load impedance ZL = 60 – j80 Ω to a 50 Ω line. Rotate the modified load impedance/ admittance onto the g=1 circle 7. Determine the stub length lA required to produce the reactance/susceptance in part 4. Translate yL along a resistance/ conductance circle to get onto the rotated g=1 circle ECE357 / Prof. Rotate this circle d0/λ wavelengths towards the load (CCW) this is the circle on which yA should be located. ![]() Draw the g=1 circle this is where yB should be located. lA, lB used to tune the network ECE357 / Prof.Be very careful of: – If you need to work on an impedance or an admittance chart – Where the open/short circuit locations are on each chart ECE357 / Prof.Shorter line sections and stubs give better performance in terms of bandwidth – Shorter transmissions lines have less variation of electrical parameters with frequency.HumĮxample: Match a load impedance ZL = 100 + j80 Ω to a 50 Ω line using a single series open-circuit stub.Įxample: For a load impedance ZL = 15 + j10 Ω, design two tuning networks based on shunt short-circuited stubs to match this load to 50 Ω. Determine stub length ℓ between the open / short circuit point and the points representing ±jx’ (±jb’) ECE357 / Prof. ![]() Determine load-section length d from angles between point representing zL (yL)and the point on the rL=1 (gL=1) circle 4. Draw the |Γ| circle and translate the impedance along the line to the rL=1 (gL=1) circle (2 solutions) => r’ = 1±jx’ (y’ = 1±jb’) 3. Plot the normalized load impedance on the Smith Chart (and convert to admittance for shunt stub tuning) 2. Single-Stub Matching: Steps (shunt version in parentheses) 1. The parameters of the line are as follows: Z0 = 75 Ω, α = 0.029 Np/m, and β = 0.2π rad/m. Input Impedance / Input Reflection Coefficient from a Lossless LineĮxample: What is the input impedance seen into a 0.2λ line terminated in ZL?Įxample: Determine the input impedance of a 2 m long line terminated in a load impedance ZL = 67.5 – j45 Ω.
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