Patent Number: 6,297,777

Title: Surface-mounted antenna and communication apparatus using same

Abstract: A compact surface-mounted antenna having a wide frequency band. In the surface-mounted antenna, a first radiation electrode is formed on the left-half region of the upper surface of a base dielectric substrate. A multi-layer dielectric substrate is laminated on the upper surface of the base dielectric substrate to be bonded and fixed thereto. A second radiation electrode is formed on the right-half region of the upper surface of the multi-layer dielectric substrate. The first and second radiation electrodes are not vertically opposed to each other. Opposing edges of the first and second radiation electrodes are oblique lines. A feeding signal of a signal source is supplied to the first radiation electrode by coupling from a feeding connection electrode, and then, is supplied to the second radiation electrode from the first radiation electrode by another coupling between the first and second radiation electrodes. A direction in which the first radiation electrode excites is set to be substantially perpendicular to a direction in which the second radiation electrode excites.

Inventors: Tsubaki; Nobuhito (Shiga-Ken, JP), Nagumo; Shoji (Kawasaki, JP), Kawahata; Kazunari (Machida, JP)

Assignee: Murata Manufacturing Co., Ltd.

International Classification: H01Q 1/24 (20060101); H01Q 5/00 (20060101); H01Q 9/04 (20060101); H01Q 1/38 (20060101); H01Q 001/24 (); H01Q 001/38 ()

Expiration Date: 10/02/2018