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holl_ands | Home > Loop Antennas incl Folded Dipole > Browse:Compare LoopsWi-Fi Folded Dipole - 2400-2500 MHzUHF Folded & Tri-Folded DipolesHi-VHF+UHF "VEE" Folded DipoleUHF Circular & Square Loops NO ReflectorUHF "Figure-8" Twin Loops - NO ReflUHF "Figure-8" Twin-Loops + xxRR - OPTHi-VHF Figure-8 Twin Loops - NO ReflUHF Twin-Hoop Chireix - NO or 26ReflRodsHi-VHF+UHF Tapered Loop - A-D C2 & C2-VHi-VHF+UHF Tapered DoubleLoop - d510d180UHF Shorted Bowtie Loop (SBL)Hi-VHF+UHF Bowtie-In-Loop - NO ReflectorHi-VHF+UHF Bowtie-In-Loop + 11RR - OPTHi-VHF+UHF Bowtie-In-Loop (DblAngRefl)HiVHF+UHF DreamcatcherU+H 2-Bay Hentenna NO+11ReflRodsUHF Hourglass LoopUHF Quad-Trapezoid-LoopUHF Quad-Trapezoid-Loop+2xBarsUHF Quadazoid Loop - No ReflUHF Quadazoid Loop + ReflectorHi-VHF Folded DipolesHi-VHF Circular Loop + ReflectorHi-VHF Square Loop + ReflectorHiVHF Shorted Bowtie Loop (NO Reflector)Hi-VHF Shorted Bowtie Loop (w Reflector)Hi-VHF Hourglass LoopHi-VHF Quad-Trapezoid-LoopHi-VHF Quad-Trapezoid-Loop+2Bars - OPTLo-VHF Tri-Folded Dipoles - OPTLo-VHF 2-Bay Folded Dipole - OPTVHF Square & Circular LoopsLo-VHF Folded DipolesLoVHF Hourglass-Loop - No ReflectorLoVHF+FM Hourglass LoopLoVHF Hourglass-Loop + 3 ReflRodsLoVHF Hourglass-Loop + 5 ReflRodsHi-VHF (+UHF) Twin Rectangular LoopsHiVHF+UHF RL-M2 2-Bay+Loop - NO Refl.H+U 2-Bay+Loop RLH2 (12x10) - NO ReflH+U 2-Bay+Loop RLH2 (10.5x8.7) - NO ReflH+U 4-Bay Loop RLH4 - No ReflHiVHF+UHF 2Square-Chireix-In-Rect. LoopHi-VHF+UHF In 3-ftx2-ft Picture Frame/
Hi-VHF Figure-8 Twin Loops - NO Refl Hi-VHF "Figure-8" Twin Circular Loops with NO Reflector analyzed using 4nec2. Optimum size is 24-in Diameter, using QICT (Quarter-Inch Copper Tubing). Hi-VHF Raw Gain = 5.6 to 6.4 dBi and SWR (300-ohms) Under 2.6. Date(s): 15 July 2009. Album by holl_ands. 1 - 5 of 5 Total. 9939 Visits.
enlarge 0KB, 1024x819 1 Hi-VHF Twin (Figure8) Loops - Raw Gain Optimum size is 24-in for 1/4-in Copper Tubing Hi-VHF Raw Gain = 5.6 to 6.4 dBi enlarge 0KB, 1024x819 2 Hi-VHF Twin (Figure8) Loops - SWR Optimum size is 24-in for 1/4-in Copper Tubing Hi-VHF SWR (300-ohms) Under 2.6 300-ohms is optimum Characteristic Impedance load. enlarge 0KB, 1024x819 3 Hi-VHF Twin (Figure8) Loops - Impedance Optimum size is 24-in for 1/4-in Copper Tubing enlarge 0KB, 1024x696 4 HiVHF Circular Loops Compare Single vs Twin (Figure8) Loops Only a small increase in Gain.  Better use of materials to use a Reflector Loop instead. enlarge 28KB, 791x1024 5 Hi-VHF Twin (Figure8) Circular Loops Example 4nec2 file
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