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COMSOL Multiphysics RF MODULE V ERS
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CONTENTS Chapter 1: Introduction Mo
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Results and Discussion. . . . . . .
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Chapter 4: Optics and Photonics Mod
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1 Introduction The RF Module Model
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highlights. The categories here inc
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TABLE 1-1: RF MODULE MODEL LIBRARY
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2 Tutorial Models This chapter cont
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Results and Discussion Figure 2-1 s
- Page 19 and 20: 4 Draw a square with corners at (
- Page 21 and 22: COMPUTING THE SOLUTION Click the So
- Page 23 and 24: Results and Discussion The dipole a
- Page 25 and 26: PHYSICS SETTINGS Variables 1 Choose
- Page 27 and 28: 5 Click OK to close the dialog box
- Page 29 and 30: Model Library path: RF_Module/Tutor
- Page 31 and 32: 4 From the Solve menu, open the Sol
- Page 33 and 34: them from the eigenvalues. The appl
- Page 35 and 36: 5 On the Port page, set the values
- Page 37 and 38: 5 On the Port page, enter 36.4 in t
- Page 39 and 40: Waveguide Optimization Introduction
- Page 41 and 42: Results and Discussion Figure 2-3 s
- Page 43 and 44: Modeling Using the Graphical User I
- Page 45 and 46: 3 Select Boundary 7 and set the Con
- Page 47 and 48: POSTPROCESSING AND VISUALIZATION Fo
- Page 49 and 50: The solution takes a few minutes to
- Page 51 and 52: Night side Earth surface Ionosphere
- Page 53 and 54: Results and Discussion The model pr
- Page 55 and 56: 4 Select both spheres and click the
- Page 57 and 58: RF and Microwave Models In this cha
- Page 59 and 60: measure of the transmittance and re
- Page 61 and 62: y 1 cm is at about 7.5 GHz. At the
- Page 63 and 64: By feeding the circulator at a diff
- Page 65 and 66: Importing the Geometry from a Binar
- Page 67 and 68: MESH GENERATION This model uses the
- Page 69: It is more instructive to look at t
- Page 73 and 74: Monoconical RF Antenna Introduction
- Page 75 and 76: 50 Ω, to obtain maximum transmiss
- Page 77 and 78: Figure 3-7 shows the antenna radiat
- Page 79 and 80: 2 Select the RF Module>Electromagne
- Page 81 and 82: 13 Zoom in around (0, 0) using the
- Page 83 and 84: 4 In the Contour levels area, click
- Page 85 and 86: 2 Clear the Keep current plot check
- Page 87 and 88: 6 Click the Solve button on the Mai
- Page 89 and 90: Results and Discussion The figure b
- Page 91 and 92: PHYSICS SETTINGS Point Settings Def
- Page 93 and 94: 2 In the x-axis area, select the Ex
- Page 95 and 96: Because the impedance is inversely
- Page 97 and 98: 4 From the Space dimension list, se
- Page 99 and 100: 2 Select Boundaries 1, 2, 4, and 6.
- Page 101 and 102: 4 On the Pointwise Constraints page
- Page 103 and 104: 12 Click the Solve button on the Ma
- Page 105 and 106: Module. The electromagnetic cavity
- Page 107 and 108: EIGENFREQUENCY VS. TEMPERATURE By r
- Page 109 and 110: GEOMETRY MODELING 1 Go to the Draw
- Page 111 and 112: 3 Set dx, dy, and dz to u, v, and w
- Page 113 and 114: 20 Select the Solve using solver se
- Page 115 and 116: Computing the Solution Using a Para
- Page 117 and 118: 8 Click Solve. 9 When the parametri
- Page 119 and 120: H-Bend Waveguide with S-parameters
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Model Library path: RF_Module/RF_an
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1 From the Postprocessing menu, cho
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The rectangular port is excited by
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Figure 3-16 shows a single-mode wav
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Figure 3-18: The S 21 parameter (in
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PHYSICS SETTINGS First set up the b
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FREEZING THE BOUNDARY MODE ANALYSIS
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12 Click the Solve button on the Ma
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Microwave Cancer Therapy Introducti
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The model takes advantage of the pr
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DOMAIN AND BOUNDARY EQUATIONS—HEA
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Figure 3-23: The computed microwave
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solutions for both the electromagne
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4 Select Subdomain 1, then enter th
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1 Click the Plot Parameters button
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sar_in_human_head_interp.txt. That
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The bioheat equation produces a sim
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3 Click OK. 4 From the Options menu
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17 In the Work-Plane Settings dialo
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SETTINGS SUBDOMAIN 19 epsilonr_brai
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4 Click the Init tab and type 0 in
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POSTPROCESSING AND VISUALIZATION 1
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The walls of the oven and the waveg
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Figure 3-29: Temperature in the cen
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3 Click the block symbol again and
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2 At the waveguide end, Boundary 23
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4 Click OK to generate the plot bel
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3 Click OK to generate the plot bel
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Because the filter cutoff should be
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the force is applied. Figure 3-32 d
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6 Then the ECAD Import Options dial
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PHYSICS SETTINGS Subdomain Settings
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solver takes more steps than it sto
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3 Select Subdomain 1 and clear the
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13 Click the Solve button on the Ma
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Balanced Patch Antenna for 6 GHz In
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k0 = ω ε0 µ 0 All metallic objec
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divided by the input power. In Figu
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Reference 1. E. Recht and S. Shiran
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10 Select the objects SQ2, CO1, and
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43 Specify two spheres with the fol
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inputs are feeding the antenna, lik
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the width of the PML is equal to λ
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a toggle button that shifts between
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5 Select Coarse solver from the tre
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maxE = max(EdB); minE = min(EdB); E
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exterior of the PML that shows a ve
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13 Choose Extrude from the Draw men
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2 Click the Settings button. 3 In t
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Sea Bed Logging Introduction The Se
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Figure 3-39: Electric field magnitu
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PHYSICS SETTINGS Scalar Variables 1
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4 Click OK to generate the plot bel
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5 Click the General tab. From the P
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Optics and Photonics Models In this
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Model Definition The model is built
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Model Library path: RF_Module/Optic
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PHYSICS SETTINGS Scalar Variables S
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POSTPROCESSING AND VISUALIZATION By
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Model Definition The geometry is a
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2 In the list of application modes,
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Because the refractive index of GaA
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5 Click OK twice to see the followi
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Bandgap Analysis of a Photonic Crys
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a 2 a 3 × b1 = 2π----------------
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The five lowest bands for the (1, 1
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Modeling Using the Graphical User I
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Subdomain Settings 1 Open the Subdo
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3 Click the Parametric tab. Select
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3 Click OK to see the following plo
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fem.appl{1}.prop.analysis = 'harmon
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Model Definition The mode analysis
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2 Select the RF Module>Perpendicula
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4 On the Contour page, give Magneti
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includes only two independent param
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OPTIONS AND SETTINGS 1 Open the Con
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The problem becomes well-posed by a
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POSTPROCESSING AND VISUALIZATION Th
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7 Click OK. 8 From the Postprocessi
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the computed propagation constants
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3 The default eigenmode is the one
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Compare these ideal values of the p
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Stress-Optical Effects with General
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The PDE solved is Navier’s equati
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and εx ∂u = ∂x εy ∂v = ∂y
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Model Library path: RF_Module/Optic
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NAME EXPRESSION DESCRIPTION B2 0.65
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2 In the Subdomain Expressions dial
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4 Initialize the mesh in this geome
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Note: This model includes an extens
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3 Enter 1.46 in the text field Sear
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In these expressions, w 0 is the mi
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After 90 fs the pulse has reached t
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4 Select the RF Module>In-Plane Wav
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Boundary Conditions 1 From the Phys
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6 Click the Remesh button; when the
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2 On the General page, make sure th
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Propagation of a 3D Gaussian Beam L
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Figure 4-15: After 20 fs the pulse
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7 Click the Delete Interior Boundar
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Boundary Conditions 1 From the Phys
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5 From the Options menu, select Sup
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INDEX 3D electromagnetic waves mode
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efractive index 222, 254 resistance