a design of the novel coupled-line bandpass filter using defected ...

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49k AnalysisCoupling coefficient (k) is a number that expresses the degree of electricalcoupling that exists between two circuits. The coupling coefficient is calculated as theratio of the mutual impedance to the square root of the product of the self-impedancesof the coupled circuits, all impedances being expressed in the same units.In this thesis can calculate k directly from response of |S 21 | by equationk =ff− f2 2p2 p12 2p2 + fp1f and f are the low and high resonance frequency respectively as shown belowp1p2Low and high resonance frequency response
50Before added rectangular shapeFrom Figure 3-18 can calculate k valuef p1 = 3.6 GHzf p2 = 5.0 GHzResponse of the filter before add rectangular shapef p1 = 3.6 GHzf p2 = 5.0 GHz5.0 − 3.6k =5.0 + 3.62 22 2k = 0.3172
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A DESIGN OF THE NOVEL COUPLED-LINE
Page 6 and 7:
LIST OF TABLESTablePage3-1 Circuit
Page 8 and 9: LIST OF FIGURES (CONTINUED)FigurePa
Page 10 and 11: CHAPTER 1INTRODUCTIONPresently, the
Page 12 and 13: CHAPTER 2THEORYIn this chapter, bas
Page 14: 5Zcη ⎧w⎛w⎞⎫= ⎨ + 1.393+
Page 22 and 23: 13The even- and odd-mode characteri
Page 24: 15Jnn , + 1Yπ FBW= (2-33c)2g g0 n
Page 27 and 28: 182.5 Chebyshev lowpass filter prot
Page 29 and 30: 20g 0 g 1g 2g 3g nn (even)g n+1org
Page 31 and 32: CHAPTER 3DESIGN AND SIMULATIONIn th
Page 33 and 34: 24TABLE 3-1 Circuit design paramete
Page 35 and 36: 26FIGURE 3-6 Simulation response of
Page 37 and 38: 28FIGURE 3-9 Investigate parameter
Page 39 and 40: 30Figure 3-12 shows the response of
Page 41 and 42: 32(a)(b)FIGURE 3-16 Parallel couple
Page 43 and 44: 34We use the dimensions of one-pole
Page 45 and 46: 36(a) top view and (b) ground viewB
Page 47 and 48: 384.1 Fabrication one-pole parallel
Page 49 and 50: 40FIGURE 4-5 Measurement response o
Page 51 and 52: 42Figure 4-6 show performances of f
Page 53 and 54: CHAPTER 5CONCLUSION AND SUGGESTIONW
Page 55 and 56: From this figure below 8 GHz the re
Page 57: APPENDIX Ak ANALYSIS
Page 61 and 62: APPENDIX BEQUIVALENT CIRCUIT CALCUL
Page 63 and 64: 54In order to have describes the DG
Page 65 and 66: 56⎛=− ⎞=⎝ ⎠1 2FBW ⎜ω
Page 67 and 68: 58Simulation of parallel coupled-li
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a design of the novel coupled-line bandpass filter using defected ...

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