UHF "Figure-8" Twin Circular Loops with NO Reflector analyzed using 4nec2.
Should use 9.1-in Diameter, QICT (Quarter-Inch Copper Tubing) or larger for New UHF Band version (SWR under 2.4, -0.8 dB Mismatch Loss). AWG10 NOT RECOMMENDED for UHF version, since SWR climbs as high as 3.65 (-1.71 dB Mismatch Loss).
Date(s): 6 Sep 2011. Album by holl_ands. 1 - 13 of 13 Total. 444 Visits.
enlarge 188KB, 574x1024 2 UHF "Figure-8" Twin Circular Loops Front View - 9.1-in Diameter for QICT [1 large box = 1.25-inch]
enlarge 283KB, 1024x696 3 Twin-Hoop Chireix vs "Figure-8" Twin-Loop vs Shorted-Bowtie-Loop (SBL) vs 2-Bay Hentenna vs 6-Whisker Bowtie vs Single Loop. In decreasing UHF Gain order.
enlarge 143KB, 1152x638 4 UHF "Figure-8" Twin Circular Loops UHF Raw Gain for QICT
enlarge 208KB, 1152x638 5 UHF "Figure-8" Twin Circular Loops UHF SWR (300-ohms) under 2.4 for QICT