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Published byAliya Harcrow Modified over 10 years ago
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Microwave Office Basic Using Steps Speaker:
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Design Example Spec. 0.1dB ripple fractional bandwidth ¼ lambda coupled line BPF S11 should smaller than -15dB in the passband FBW=30%
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1.Open New Schematic
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Enter Schematic s name
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2.Choose Unit
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Units Press if MKS unit is needed
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3.Choose elements Press Elem bottom first
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4.Add substrate (Microstrip here ) 1.click substrate 2.Choose MSUB 3.Double click to change the value
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Here Al2O3 substrate is used Dielectric constant=9.8 Substrate Thickness=15mil
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5.Choose coupled line 1.Coupled lines 2.Drag MCLIN
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Hand calculation data for coupled lines Total four ¼ lambda resonators are used here First resonator: line width 8.3125mil,gap 2.4061mil,length 486.6 mil Second resonator: line width 8.9375mil,gap 2.625mil,length 485.3 mil Third resonator: line width 8.9375mil,gap 2.625mil,length 485.3 mil Fourth resonator: line width 8.3125mil,gap 2.4061mil,length 486.6 mil
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6.Connect the coupling lines
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7.Add ports Click here
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8.Set project frequencies
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Set project frequencies cont d Remember to click Apply
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9. See the response
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See the response cont d Enter graph name
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Add measurement
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Add measurement cont d Choose measurement type Choose the circuit use dB scale
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Result
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10. Fine tune the ckt parameters Click here and choose the ckt parameters to tune
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Start to tune 1.click tune 2.drag the value to change
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Fine tune result
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11. Optimize
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Optimize (2) 1.choose one measurement to meet the goal 2.Goal type 3.frequency to satisfy goal
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Optimize (3) Variables to opt
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optimize (4)
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optimize (5)
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optimize(6)
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12. TXL
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TXL cont d
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