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E - Bibliothèque et Archives Canada

E - Bibliothèque et Archives Canada

TMt piane wave O 0.5 1

TMt piane wave O 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 RH0 in Lambdas OE- l I l 1 1 9 1 l Figure 1.6: Magnitude ofcumnt density (J in Alm) multiplied by fi aimg the surface of a balf plane illuminated by a TMz piane wave at

4.2 STRIP SURFACE CURRENT USlNG UTD The same case of section 3.2.1 will k taken here 4th the incident wave king a TMr plane wave (refer to Figure 3.8). The incident wave has a unit magnitude electric field at eâge A (the origin). The solution considers the present geo- as a combination of two edges, one at A and the otkr at B. Both edge contributions will be taken into consideration to get the dimacted field to be added to the GO field. All of this homwer is to get the total electric field. To obtain the surface current on the strïp, the tangential magnetic field is ndeô. Using Maxwell's equation Hm will be derived from E. (TM case): vxE=-jq& Sinœ E has a z component only, then. the tangential rnagnMc field to the surface is a) GO fields -on the lit side: E:= e J~P -6-9') NP do+o') E: = -e from equation 4.8,