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.net barcode reader library Pa 15 W Pa 15 W in Software
Pa 15 W Pa 15 W Scanning Data Matrix 2d Barcode In None Using Barcode Control SDK for Software Control to generate, create, read, scan barcode image in Software applications. Making Data Matrix In None Using Barcode creation for Software Control to generate, create Data Matrix image in Software applications. [466] Recognizing ECC200 In None Using Barcode decoder for Software Control to read, scan read, scan image in Software applications. Data Matrix ECC200 Generator In C# Using Barcode creation for .NET Control to generate, create Data Matrix image in Visual Studio .NET applications. 0785 = (15 W) (0785) = Pa
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Bar Code Drawer In None Using Barcode generator for Software Control to generate, create barcode image in Software applications. UPCA Supplement 5 Generator In None Using Barcode printer for Software Control to generate, create UPCA Supplement 2 image in Software applications. Now check what you have learned from the Smith chart Recall that 15 W of 45GHz microwave RF signal was input to a 50 transmission line that was 28 cm long The load connected to the transmission line has an impedance of 36 + j40 From the Smith chart: Admittance (load) VSWR VSWR (dB): Reflection coefficient (E) Reflection coefficient (P) Reflection coefficient angle Return loss Reflection loss Transmission loss coefficient 062 j069 26:1 83 dB 044 02 84 degrees 7 dB 105 dB 15 Bar Code Generator In None Using Barcode maker for Software Control to generate, create bar code image in Software applications. Make Data Matrix In None Using Barcode creation for Software Control to generate, create DataMatrix image in Software applications. Note that in all cases the mathematical interpretation corresponds to the graphical interpretation of the problem, within the limits of accuracy of the graphical method MSI Plessey Creator In None Using Barcode encoder for Software Control to generate, create MSI Plessey image in Software applications. UPC Symbol Creator In None Using Barcode creator for Microsoft Excel Control to generate, create GS1  12 image in Microsoft Excel applications. Stub matching systems
Draw Linear In Visual C# Using Barcode creator for .NET framework Control to generate, create Linear 1D Barcode image in VS .NET applications. Scanning Barcode In Visual Basic .NET Using Barcode Control SDK for .NET framework Control to generate, create, read, scan barcode image in .NET applications. A properly designed matching system will provide a conjugate match to a complex impedance Some sort of matching system or network is needed any time the load impedance ZL is not equal to the characteristic impedance Zo of the transmission line In a transmission line system, it is possible to use a shorted stub connected in Painting 2D Barcode In Visual C# Using Barcode printer for VS .NET Control to generate, create Matrix Barcode image in .NET framework applications. Print Bar Code In None Using Barcode generation for Font Control to generate, create barcode image in Font applications. Smith chart applications 115 parallel with the line, at a critical distance back from the mismatched load, in order to effect a match The stub is merely a section of transmission line that is shorted at the end not connected to the main transmission line The reactance (hence also susceptance) of a shorted line can vary from to + , depending upon length, so you can use a line of critical length L2 to cancel the reactive component of the load impedance Because the stub is connected in parallel with the line it is a bit easier to work with admittance parameters, rather than impedance Consider the example of Fig 48, in which the load impedance is Z = 100 + j60, which is normalized to 20 + j12 This impedance is plotted on the Smith chart in Fig 49, and a VSWR circle is constructed The admittance is found on the chart at point Y = 037 j022 In order to provide a properly designed matching stub, you need to find two lengths L1 is the length (relative to wavelength) from the load toward the generator (see L1 in Fig 48); L2 is the length of the stub itself The first step in finding a solution to the problem is to find the points where the unit conductance line (10 at the chart center) intersects the VSWR circle; there are two such points shown in Fig 49: 10 + j11 and 10 j11 Select one of these (choose 10 + j11) and extend a line from the center 10 point through the 10 + j11 point to the outer circle (WAVELENGTHS TOWARD GENERATOR) Similarly, a line is drawn from the center through the admittance point 037 022 to the outer circle These two lines intersect the outer circle at the points 0165 and 0461 The distance of the stub back toward the generator is found from: L1 = 0165 + (0500 0461) [470] Recognize DataMatrix In Visual Basic .NET Using Barcode recognizer for .NET framework Control to read, scan read, scan image in .NET framework applications. Painting Code 128C In None Using Barcode encoder for Excel Control to generate, create Code 128C image in Office Excel applications. Transmission line
50 Vin
Matching stub Conditions: ZS 50 50 Zo ZL 100
48 Matching stub length and position
116 The Smith chart
j11 j022 Y 0461 j11 Y 0368 j11 49 Solution to problem (Courtesy of Kay Elementrics) Smith chart applications 117 = 0165 + 0039 = 0204 [471] [472] The next step is to find the length of the stub required This is done by finding two points on the Smith chart First, locate the point where admittance is infinite (far right side of the pure conductance line); second, locate the point where the admittance is 0 j11 (Note that the susceptance portion is the same as that found where the unit conductance circle crossed the VSWR circle) Because the conductance component of this new point is 0, the point will lay on the j11 circle at the intersection with the outer circle Now draw lines from the center of the chart through each of these points to the outer circle These lines intersect the outer circle at 0368 and 0250 The length of the stub is found from L2 = (0368 0250) = 0118 [473] [474] From this analysis you can see that the impedance, Z = 100 + j60, can be matched by placing a stub of a length 0118 at a distance 0204 back from the load

