STACKED LOOP ANTENNA

摘要

PROBLEM TO BE SOLVED: To provide a stacked loop antenna by which a broader band can be realized. SOLUTION: The stacked loop antenna has an antenna element formed by connecting a pair of loop parts 11 with a power supply part 50 via a linear part 12 and width of the loop parts 11 is defined as exceeding the design center frequencyλby 0.02λ. Couplings (influence of mutual impedance) between loop parts is increased and frequency characteristics of VSWR (voltage standing wave ratio) can be made into broader band by broadening the width of the loop parts 11. Especially, the width of the loop parts is preferably 0.05λto 0.1λ. COPYRIGHT: (C)2003,JPO