MULTIFREQUENCY RESONANT LAMINATED PATCH ANTENNA

摘要

PROBLEM TO BE SOLVED: To provide a multifrequency resonant laminated path antenna capable of coping with multifrequencies, with a simple structure and a low cost.;SOLUTION: A multifrequency resonant laminated patch antenna 1 includes multilayer substrates 2, 3 and 4, a plurality of flat type antenna radiating elements 5, 6 and 7 placed respectively in each layer of the substrates 2, 3 and 4 and a feeding point 5c provided only with one of the radiating elements 5, 6, and 7. The radiating elements 5, 6 and 7 are placed in the direction from upper layers to the lower layers of the substrates 2, 3 and 4 in order from the radiating element 5 with the highest resonant frequency to the radiating element 7 with the lowest resonant frequency. The feeding point 5c is provided with the radiating element 5 with the highest resonant frequency.;COPYRIGHT: (C)2004,JPO