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Copy pathCOLLINEAR_2450_10.4DBI.NEC
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COLLINEAR_2450_10.4DBI.NEC
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CM 4:1 Halfwave stub balun required for below 1:1.05 VSWR @2440 mhz. Beamwidth 2410-2470 mhz below 2:1 VSWR.
CM
CM Omnidirectional pattern of 10.5 dBi peak gain in free space and 16.5 dBi peak gain with real moderate grround and 3 wavelength antenna height.
CM
CM Directional peak gain of 22.0 dBi with real moderate grround and 3 wavelength antenna height using 2 reflectors.
CM Directional peak gain of 19.3 dBi with real moderate grround and 3 wavelength antenna height using single reflector.
CM
CM freq=2450 Resonant frequency
CM AH=3 Antenna height in wavelength
CM spacing=0.0130 Adj gap when testing 0.0130 Help in adjusting VSWR.
CM W=0.0020 Wire thickness 0.0020 0.0020 @ 2.45 ghz is ethernet cable
CM wla=0.4230 Center wire 0.4196 0.4230 withreflectors
CM wlb=0.6944 Inner wires 0.7142 0.6944 with reflectors
CM wlc=wlb Outer wires 0.7142 0.6944 with reflectors
CM wld=wlb End wires 0.7142 0.6944 with reflectors
CM hr=0.04172 Ring radius 0.04118 0.4172 with reflector
CM da=wla
CM db=da+spacing
CM dc=db+wlb
CM dd=dc+spacing
CM de=dd+wlc
CM df=de+spacing
CM dg=df+wld
CM G=0.27 0.27 for 2 reflecors and 0.15 for single reflector.
CM RT=35 Reflector thickness 20
CM XO=0.35 Offset 0.35
CM
CM
CM
CM Helix 1 10 spacing spacing hr hr hr hr W
CM Copy/move 0 0 0 0 0 0 0 da 1
CM Helix 2 10 spacing spacing hr hr hr hr W
CM Copy/move 0 0 0 0 0 0 0 dc 2
CM Helix 3 10 spacing spacing hr hr hr hr W
CM Copy/move 0 0 0 0 0 0 0 de 3
CM Wire 5 30 hr 0 0 hr 0 da W
CM Wire 6 10 hr 0 db hr 0 dc W
CM Wire 7 10 hr 0 dd hr 0 de W
CM Wire 8 10 hr 0 df hr 0 dg W
CM Wire 9 11 0 0 0 0 0 da W
CM Mirror 100 0 0 1
CM Wire 10 30 hr -G -AH hr -G AH W*RT
CM Wire 11 30 -G 0 -AH -G 0 AH W*RT
CM Copy/move 0 0 0 0 0 0 0 AH
CE
SY freq=2450 'Resonant frequency
SY AH=3.0 'Antenna height in wavelength
SY spacing=0.0130 'Adj gap when testing 0.0130 Help in adjusting VSWR.
SY W=0.0020 'Wire thickness 0.0020 0.0020 @ 2.45 ghz is ethernet cable
SY wla=0.4230 'Center wire 0.4196 0.4230 withreflectors
SY wlb=0.6944 'Inner wires 0.7142 0.6944 with reflectors
SY wlc=wlb 'Outer wires 0.7142 0.6944 with reflectors
SY wld=wlb 'End wires 0.7142 0.6944 with reflectors
SY hr=0.04172 'Ring radius 0.04118 0.4172 with reflector
SY da=wla
SY db=da+spacing
SY dc=db+wlb
SY dd=dc+spacing
SY de=dd+wlc
SY df=de+spacing
SY dg=df+wld
SY G=0.27 '0.27 for 2 reflecors and 0.15 for single reflector.
SY RT=35 'Reflector thickness 35
SY XO=0.35 'Offset 0.35
GH 1 10 spacing spacing hr hr hr hr W
GM 0 0 0 0 0 0 0 da 1
GH 2 10 spacing spacing hr hr hr hr W
GM 0 0 0 0 0 0 0 dc 2
GH 3 10 spacing spacing hr hr hr hr W
GM 0 0 0 0 0 0 0 de 3
GW 5 30 hr 0 0 hr 0 da W
GW 6 10 hr 0 db hr 0 dc W
GW 7 10 hr 0 dd hr 0 de W
GW 8 10 hr 0 df hr 0 dg W
GW 9 11 0 0 0 0 0 da W
GX 100 001
GW 10 30 hr -G -AH hr -G AH W*RT
GW 11 30 -G 0 -AH -G 0 AH W*RT
GM 0 0 0 0 0 0 0 AH
GS 0 0 299.80/freq
GE 1
LD 5 0 0 0 58000000
GN 2 0 0 0 4 0.003
EK
EX 0 5 1 0 1 0 0
FR 0 0 0 0 freq 0
EN