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Multiband U_Slot antenna

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Sricharan Chadaram
Sricharan Chadaram

This document summarizes the results of a simulation of a 3U slot antenna. The antenna was modeled in FEKO and has resonance peaks at 3.75 GHz and 5.25 GHz based on the reflection coefficient plot. The total gain plots show the antenna has a gain between 3-9 dBi across the frequency band of 3-6 GHz depending on the direction. The gain is highest at 7.08 dBi on the broadside direction of 0 degrees phi.

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3_U Slot antenna D:/Sricharan/FEKO/Topic viz/Demo models for New Clients by me/3_Slot patch 2015-07-10 14:33 FEKO is a product of Altair Engineering, Inc.
Three_U_Slot_Antenna_Air_Sub Figure 1: 3D View 3_U Slot antenna 2015-07-10 14:33
Excita on -30 -25 -20 -15 -10 -5 0 3.0 3.5 4.0 4.5 5.0 5.5 6.0 Reflectioncoefficient[dB] Frequency [GHz] VoltageSource1 (3.75 GHz, -18.28 dB) (5.25 GHz, -7.182 dB) Figure 2: Reflec on coefficient Magnitude [dB] - Three_U_Slot_Antenna_No_Sub_PECPatch_3-6Ghz 3_U Slot antenna 2015-07-10 14:33
Far field -27 -24 -21 -18 -15 -12 -9 -6 -3 0 3 6 9 3.0 3.5 4.0 4.5 5.0 5.5 6.0 Gain[dBi] Frequency [GHz] FarField3 Figure 3: Total Gain [dBi] (Theta = 0 deg; Phi = 180 deg) - Three_U_Slot_Antenna_No_Sub_PECPatch_3-6Ghz 3_U Slot antenna 2015-07-10 14:33
Far field 1 2 3 4 5 6 7 8 0 10 20 30 40 50 60 70 80 90 Gain[dBi] Theta [deg] FarField3 Figure 4: Total Gain [dBi] (Frequency = 5.55 GHz; Phi = 0 deg) - Three_U_Slot_Antenna_No_Sub_PECPatch_3-6Ghz 3_U Slot antenna 2015-07-10 14:33
Far field 7.08384453 7.08384454 7.08384455 7.08384456 7.08384457 7.08384458 7.08384459 7.08384460 7.08384461 7.08384462 7.08384463 0 30 60 90 120 150 180 210 240 270 300 330 360 Gain[dBi] Phi [deg] FarField3 Figure 5: Total Gain [dBi] (Frequency = 5.55 GHz; Theta = 0 deg) - Three_U_Slot_Antenna_No_Sub_PECPatch_3-6Ghz 3_U Slot antenna 2015-07-10 14:33

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