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holl_ands | Home > Yagi Antennas > Browse:Yagi Comparison ChartsUHF 2-El FD-Yagi - OPTimizedUHF 3-El FD-Yagi - OPTimized UHF 4-El FD-Yagi - OPTimizedUHF 5-El FD-Yagi - OPTimized UHF 5-El FLAT Yagi - CM-4040UHF 6-El FD-Yagi - OPTimizedUHF 6-El Asymmetric Dipole Yagi - WA5VJBUHF 7-El FD-Yagi - OPTimizedUHF 7-El FD-Yagi - Opt. by NikimlUHF 8-El FD-Yagi (2ReflRods) - OPTimizedUHF 8-El FLF-Yagi - 300ohm OPTimizedUHF 12-El FD-Yagi - OPTimizedUHF 13-El FD-Yagi (2ReflRod) - OPTimizedUHF 13-El FD-Yagi (2RR) EqualDirs - OPTUHF 13-El FD-Yagi (2ReflRods) - kgbUHF CM4248 15El FD-Yagi + 14RR CornerUHF 16-El Yagi + 6RR Corner Wade CYD1446UHF 17-El Yagi with 6RR's - tfrlicUHF 18-El FD-Yagi (2ReflRods) - OPTUHF 18-El Yagi from snowman53UHF 25-El FD-Yagi (2ReflRods) - OPTUHF 91XG Corner-FD-YagiUHF 91XG - Wider Corner ReflectorUHF 91XG - Wider Bowties, Better Ch14-51UHF 91XG - Taller Corner ReflectorCh14-17 15El FD-Yagi + 14RR Corner - OPTCh14-17 18El FD-Yagi + 10RR Corner - OPTCh14-17 18El FD-Yagi + 14RR Corner - OPTCh14-17 18El FD-Yagi + 20RR Corner - OPTCh14-19 18El FD-Yagi + 20RR Corner - OPTCh14-19 21El FD-Yagi + 20RR Corner - OPTCh22 9-El FD-Yagi - 300ohm OPTimizedCh22 9-El FLF-Yagi - 300ohm OPTimizedCh22 9-El FD-Yagi - 75ohm MTM ScientificCh22 9-El FD-Yagi - 300ohm K7MEMCh22 11-El FD-Yagi - 300ohm K7MEMCh30 18El FD-Yagi + 14RR CornerCh45-51 12-El FD-Yagi - OPTimizedHi-VHF 3-El FD-Yagi - OPTimizedHi-VHF 3-El One-Lamda LFA-YagiHi-VHF 4-El FD-Yagi - OPTimizedHi-VHF 4-El FLF Yagi - OPTimizedHi-VHF 4-El K7MEM Yagi: Folded vs NotHi-VHF 5-El FD-Yagi - OPTimizedHi-VHF 5-El FLF Yagi - OPTimizedHi-VHF 5-El Yagi Optimized by K6STIHi-VHF 6-El FD-Yagi - OPTimizedHi-VHF 7-El FD-Yagi - OPTimizedHi-VHF 8-El K7MEM Yagi: Folded vs NotHi-VHF 8-El FD-Yagi - OPTimizedHiVHF 9-El FD-Yagi - 1 vs 3 Refl. RodsHiVHF 9-El FD-Yagi, Stellar Labs 30-2475Hi-VHF 10-El FD-Yagi - OPTimizedHi-VHF 10-El FD-Yagi - Lorkoe's AntiqueHi-VHF 12-El FD-Yagi - OPTimizedHi-VHF 12-El FD-Yagi (3ReflRods) - kgbHiVHF 13El FD-Yagi - Stellar Labs 302476Hi-VHF 13-El FD-Yagi (2ReflRods) - kgbHi-VHF 16-El FD-Yagi - OPTimizedHi-VHF 18-El FD-Yagi - OPTimizedHi-VHF 20-El FD-Yagi - OPTimizedHi-VHF 22-El FD-Yagi - OPTimizedCh13 5-El Yagi - OPTimized by nikimlCh13 8-El Yagi - OPTimized by K6STICh13 12-El FD-Yagi - OPTimizedCh12 12-El FD-Yagi - OPTimized Ch6 2-El FD-Yagi - OPTimizedCh6 3-El FD-Yagi - OPTimizedCh7 12-El Yagi from v37bqhCh2-6 Antennacraft Y5-2-6 5-El FD-YagiCh3 4-El FD-Yagi - OPTimizedCh3 5-El FD-Yagi - OPTimizedCh3 6-El FD-Yagi - OPTimized
Ch14-19 21El FD-Yagi + 20RR Corner - OPT Ch14-19 21-Element Folded Dipole Yagi with 20 Reflector Rod Corner Reflector analyzed using 4nec2. Dimensions were determined (incl. Corner Angle and Length of Yagi Reflector in the Apex) using nikiml's Python Optimization Scripts.   Dimensions are found in the 4nec2 File: Boom Length = 97-inches. Corner Reflector Width=37.06-in, Corner Angle (to X-Axis)=49.54-deg and Xsep=2.83-in (projection onto X-Axis of Reflector Rod-Rod Separation). Ch14-19 Raw Gain = 16.1 to 16.2 dBi, F/B & F/R Ratio Min = 30.5 dB and SWR (300-ohms) Under 1.7. A Parameter Sweep was conducted to determine Optimum value for S0, the location of the Yagi Reflector (and hence the entire Yagi) relative to the Corner's Apex, finding little difference for S0 = 0.0 to 1.0, so position of Yagi relative to Corner is indeed Optimum. Date(s): 20 Sep 2013. Album by holl_ands. 1 - 12 of 12 Total. 4520 Visits.
enlarge 157KB, 1024x970 1 UHF 21-El FD Yagi + 20RR Corner 3D View enlarge 224KB, 636x1024 2 UHF 21-El FD Yagi + 20RR Corner Front View [1 large square = 5.0 inches] enlarge 168KB, 1024x641 3 UHF 21-El FD Yagi + 20RR Corner Top View [1 large square = 12.5 inches] enlarge 200KB, 1152x686 4 UHF 21-El FD Yagi + 20RR Corner Ch14-19 Raw Gain = 16.1 to 16.2 dBi Ch14-19 F/B & F/R Ratio Min = 30.5 dB enlarge 208KB, 1152x686 5 UHF 21-El FD Yagi + 20RR Corner UHF SWR (300-ohms) Under 1.7 enlarge 280KB, 1152x686 6 UHF 21-El FD Yagi + 20RR Corner UHF Impedance enlarge 191KB, 1152x686 7 UHF 21-El FD Yagi + 20RR Corner Ch14-19 Raw Gain DETAIL enlarge 40KB, 791x1024 8 UHF 21-El FD Yagi + 20RR Corner 4nec2 File enlarge 201KB, 1024x833 9 UHF 21-El FD Yagi + 20RR Corner Side View [1 large square = 12.5 inches] enlarge 298KB, 1024x1024 10 UHF 21-El FD Yagi + 20RR Corner Azimuthal Pattern at 470 MHz [Needs AGT Correction = - 0.2 dBi] enlarge 300KB, 1024x1024 11 UHF 21-El FD Yagi + 20RR Corner Azimuthal Pattern at 518 MHz [Needs AGT Correction = - 0.2 dBi] enlarge 186KB, 1152x686 12 UHF 21-El FD Yagi + 20RR Corner S0 Parameter Sweep at 470 MHz S0 = From Apex of Corner to Yagi Reflector Optimum S0 is 0.0 to 1.0-inch in front of Apex.
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