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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/
HiVHF+UHF RL-M2 2-Bay+Loop - NO Refl. Hi-VHF+UHF 2-Bay Bowtie (RL-M2, No Reflector) plus Hi-VHF Rectangular Loop Resonator analyzed using 4nec2. Adding Hi-VHF Resonator Loop reduced Hi-VHF SWR to ACCEPTABLE level, plus somewhat higher Gain. For comparison, WITHOUT the Loop, M2 (10.0x9.5) 2-Bay Bowtie (NO Reflector) provides UHF Gain of 5.7 to 9.7 dBi with SWR Under 3.2 and Hi-VHF Gain of 2.0 to 2.5 dBi, but SWR = 13-7 is EXCESSIVE. Two versions were analyzed (ALL using AWG10 Wire Size): a) mclapp M2 (9.5x9.0) 2-Bay plus Rectangular Loop, with Loop in the same plane and always OUTSIDE the 2-Bay. UHF Raw Gain = 5.7 to 9.3 dBi [DECREASE of 0.0 to 0.4 dB] and SWR (300-ohms) Under 2.8 [EXCELLENT]. Hi-VHF Raw Gain = 3.4 to 3.5 dBi [INCREASE of 1.4 to 1.0 dB] and SWR (300-ohms) Under 4.0 [FAIR] [Versus 13 to 7 without Loop]. ######################################################################### b) mclapp M2 (10.0x9.5) sized 2-Bay plus Rectangular Loop, with Loop Offset 0.5-in from 2-Bay to prevent overlap collisions. UHF Raw Gain = 4.9 to 9.3 to 9.2 dBi FORWARD [DECREASE of 0.8 to 0.4 dB] and Raw Gain = 5.0 to 8.7 to 8.4 dBi TO REAR with SWR (300-ohms) under 3.1 [GOOD]. Hi-VHF Raw Gain = 3.8 dBi [INCREASE of 1.8 to 1.3 dB] with SWR (300-ohms) under 2.6 [EXCELLENT]. Date(s): 27 Jan 2015. Album by holl_ands. 1 - 39 of 39 Total. 4181 Visits.
enlarge 68KB, 652x1024 1 M2 (9.5x9.0) 2-Bay + Rectangular Loop 3D View enlarge 276KB, 970x1024 2 M2 (9.5x9.0) 2-Bay + Rectangular Loop Front View - 2-Bay & Loop in SAME Plane Loop is about 21.0-in H x 21.0-in W Feedline Separation is 1.5-in Tine Separation is 5.0-in [1 large square = 2.5 inches] enlarge 32KB, 791x1024 3 M2 (9.5x9.0) 2-Bay + Rectangular Loop 4nec2 File includes Dimensions enlarge 159KB, 1024x677 4 M2 (9.5x9.0) 2-Bay + Rectangular Loop UHF Raw Gain = 5.7 to 9.3 dBi [INCREASE of 0.4 to 0.3 dB] enlarge 189KB, 1024x677 5 M2 (9.5x9.0) 2-Bay + Rectangular Loop UHF SWR (300-ohms) Under 2.8 [REDUCTION of 0.1] enlarge 223KB, 1024x677 6 M2 (9.5x9.0) 2-Bay + Rectangular Loop UHF Impedance enlarge 311KB, 1024x1024 7 M2 (9.5x9.0) 2-Bay + Rectangular Loop Azimuthal Pattern at 470 MHz enlarge 312KB, 1024x1024 8 M2 (9.5x9.0) 2-Bay + Rectangular Loop Azimuthal Pattern at 530 MHz enlarge 313KB, 1024x1024 9 M2 (9.5x9.0) 2-Bay + Rectangular Loop Azimuthal Pattern at 590 MHz enlarge 312KB, 1024x1024 10 M2 (9.5x9.0) 2-Bay + Rectangular Loop Azimuthal Pattern at 650 MHz enlarge 313KB, 1024x1024 11 M2 (9.5x9.0) 2-Bay + Rectangular Loop Azimuthal Pattern at 698 MHz enlarge 316KB, 1024x1024 12 M2 (9.5x9.0) 2-Bay + Rectangular Loop Azimuthal Pattern at 806 MHz enlarge 147KB, 1024x677 13 M2 (9.5x9.0) 2-Bay + Rectangular Loop Hi-VHF Raw Gain = 3.4 to 3.5 dBi [INCREASE of 1.2 to 1.0 dB] enlarge 175KB, 1024x677 14 M2 (9.5x9.0) 2-Bay + Rectangular Loop Hi-VHF SWR (300-ohms) Under 4.0 [Versus 13 to 7 without Loop] enlarge 209KB, 1024x677 15 M2 (9.5x9.0) 2-Bay + Rectangular Loop Hi-VHF Impedance enlarge 322KB, 1024x1024 16 M2 (9.5x9.0) 2-Bay + Rectangular Loop Azimuthal Pattern at 174 MHz enlarge 322KB, 1024x1024 17 M2 (9.5x9.0) 2-Bay + Rectangular Loop Azimuthal Pattern at 198 MHz enlarge 326KB, 1024x1024 18 M2 (9.5x9.0) 2-Bay + Rectangular Loop Azimuthal Pattern at 216 MHz enlarge 86KB, 803x1024 19 M2 (10.0x9.5) 2-Bay + Rect. Loop Offset=0.5-in 3D View enlarge 282KB, 1015x1024 20 M2 (10.0x9.5) 2-Bay + Rect. Loop Offset=0.5-in Front View - 0.5-in Between 2-Bay & Loop Loop is about 21.75-in H x 20.0-in W Feedline Separation is 1.5-in Tine Separation is 5.0-in [1 large square = 2.5 inches] enlarge 87KB, 335x1024 21 M2 (10.0x9.5) 2-Bay + Rect. Loop Offset=0.5-in Top View [1 large square = 2.5 inches] enlarge 149KB, 1024x741 22 M2 (10.0x9.5) 2-Bay + Rect. Loop Offset=0.5-in UHF Raw Gain = 4.9 to 9.3 to 9.2 dBi FORWARD enlarge 178KB, 1024x741 23 M2 (10.0x9.5) 2-Bay + Rect. Loop Offset=0.5-in UHF Raw Gain = 5.0 to 8.7 to 8.4 dBi TO REAR UHF F/B & F/R Up to 0.8 dB due to Offset=0.5-in enlarge 180KB, 1024x741 24 M2 (10.0x9.5) 2-Bay + Rect. Loop Offset=0.5-in UHF SWR (300-ohms) Under 3.1 enlarge 232KB, 1024x741 25 M2 (10.0x9.5) 2-Bay + Rect. Loop Offset=0.5-in UHF Impedance enlarge 307KB, 1024x1024 26 M2 (10.0x9.5) 2-Bay + Rect. Loop Offset=0.5-in Azimuthal Pattern at 470 MHz enlarge 306KB, 1024x1024 27 M2 (10.0x9.5) 2-Bay + Rect. Loop Offset=0.5-in Azimuthal Pattern at 530 MHz enlarge 306KB, 1024x1024 28 M2 (10.0x9.5) 2-Bay + Rect. Loop Offset=0.5-in Azimuthal Pattern at 590 MHz enlarge 309KB, 1024x1024 29 M2 (10.0x9.5) 2-Bay + Rect. Loop Offset=0.5-in Azimuthal Pattern at 650 MHz enlarge 307KB, 1024x1024 30 M2 (10.0x9.5) 2-Bay + Rect. Loop Offset=0.5-in Azimuthal Pattern at 698 MHz enlarge 315KB, 1024x1024 31 M2 (10.0x9.5) 2-Bay + Rect. Loop Offset=0.5-in Azimuthal Pattern at 806 MHz enlarge 31KB, 791x1024 32 M2 (10.0x9.5) 2-Bay + Rect. Loop Offset=0.5-in 4nec2 File enlarge 88KB, 335x1024 33 M2 (10.0x9.5) 2-Bay + Rect. Loop Offset=0.5-in Side View [1 large square = 2.5 inches] enlarge 168KB, 1024x741 34 M2 (10.0x9.5) 2-Bay + Rect. Loop Offset=0.5-in Hi-VHF Raw Gain = 3.8 dBi Hi-VHF F/B & F/R Ratio = 0.2 dB enlarge 193KB, 1024x741 35 M2 (10.0x9.5) 2-Bay + Rect. Loop Offset=0.5-in Hi-VHF SWR (300-ohms) Under 2.6 enlarge 224KB, 1024x741 36 M2 (10.0x9.5) 2-Bay + Rect. Loop Offset=0.5-in Hi-VHF Impedance enlarge 313KB, 1024x1024 37 M2 (10.0x9.5) 2-Bay + Rect. Loop Offset=0.5-in Azimuthal Pattern at 174 MHz enlarge 313KB, 1024x1024 38 M2 (10.0x9.5) 2-Bay + Rect. Loop Offset=0.5-in Azimuthal Pattern at 198 MHz enlarge 317KB, 1024x1024 39 M2 (10.0x9.5) 2-Bay + Rect. Loop Offset=0.5-in Azimuthal Pattern at 216 MHz
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