WIDE-ANGLE ANTENNA AND ARRAY ANTENNA

摘要

A robust wide-angle antenna and array antenna are provided that enable to obtain a gain not having a high peak and a null over a wide angle, and in which the deviation in radiation characteristics with respect to a dimensional change is small. An array antenna 100 has a plurality of wide-angle antennas 110 arranged in a single row on a surface of one side of a substrate 120. The wide-angle antenna 110 is configured by placing one piece of a fed element 111 and two pieces of a non-fed element 112 on the substrate 120. By rendering the patch length L of the non-fed element 112 to be larger than 0.5 »g and is equal to or less than 0.75 »g, the amplitude ratio and phase difference are not affected by a change in the patch length L and wide band antenna characteristics can be obtained.