MINIMIZE SOLUTION FOR LOOP ANTENNA

摘要

PURPOSE: A method for miniaturizing a loop antenna is provided to obtain an additional resonance point except a main resonance point by controlling an interval between a monopole antenna and a loop. CONSTITUTION: A dielectric film(10) or dielectric substrate is formed as a plate for forming a loop antenna pattern. A feeding point loop pattern(11) and a ground loop pattern(13) are formed on the dielectric film. A folding loop pattern is formed by folding the feeding point loop pattern and the ground loop pattern. The area of the loop pattern is decreased by forming a loop pattern open gap between the feeding point loop pattern and the ground loop pattern. The area of the loop pattern is decreased by forming a monopole pattern(12) in a feeding pattern(22) vertically.