US 6,297,777 B1 · 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.

Claims46

Dependent claims

A surface-mounted antenna comprising:

a base dielectric substrate;
a first radiation electrode formed on a part of a first surface of the base dielectric substrate;
a multi-layer dielectric substrate laminated on the first surface of the base dielectric substrate to be integrated therewith, the multi-layer dielectric substrate having a first surface spaced from the first surface of the base dielectric substrate;
and
a second radiation electrode formed on the first surface of the multi-layer dielectric substrate in a position where the second radiation electrode is not opposed to the first radiation electrode;
wherein directions in which the first radiation electrode and the second radiation electrode excite intersect with each other.

3 more elements

A surface-mounted antenna comprising:

a base dielectric substrate;
a first radiation electrode and a second radiation electrode formed on a first surface of the base dielectric substrate with a gap therebetween;
at least one multi-layer dielectric substrate laminated on the first surface of the base dielectric substrate to be integrated therewith, the multi-layer dielectric substrate having a first surface spaced from the first surface of the base dielectric substrate;
and
another first radiation electrode and another second radiation electrode formed on the first surface of the multi-layer dielectric substrate with a gap therebetween;
wherein directions in which the first radiation electrode and the second radiation electrode formed on each of the base dielectric substrate and the at least one multi-layer dielectric substrate excite intersect with each other, and directions in which vertically adjacent first and second radiation electrodes of the respective first surfaces excite differ from each other.

3 more elements

A communication apparatus comprising:

at least one of a transmitter and a receiver;
a surface-mounted antenna coupled to the at least one of a transmitter and a receiver;
the surface mounted antenna comprising:
a base dielectric substrate;
a first radiation electrode formed on a part of a first surface of the base dielectric substrate;
a multi-layer dielectric substrate laminated on the first surface of the base dielectric substrate to be integrated therewith, the multi-layer dielectric substrate having a first surface spaced from the first surface of the base dielectric substrate;
and
a second radiation electrode formed on the first surface of the multi-layer dielectric substrate in a position where the second radiation electrode is not opposed to the first radiation electrode;
wherein directions in which the first radiation electrode and the second radiation electrode excite intersect with each other.

6 more elements

A communication apparatus comprising:

at least one of a transmitter and a receiver;
a surface-mounted antenna coupled to the at least one of a transmitter and a receiver, the surface mounted antenna comprising:
a base dielectric substrate;
a first radiation electrode and a second radiation electrode formed on a first surface of the base dielectric substrate with a gap therebetween;
at least one multi-layer dielectric substrate laminated on the first surface of the base dielectric substrate to be integrated therewith, the multi-layer dielectric substrate having a first surface spaced from the first surface of the base dielectric substrate;
and
another first radiation electrode and another second radiation electrode formed on the first surface of the multi-layer dielectric substrate with a gap therebetween;
wherein directions in which the first radiation electrode and the second radiation electrode formed on each of the base dielectric substrate and the at least one multi-layer dielectric substrate excite intersect with each other, and directions in which vertically adjacent first and second radiation electrodes of the respective first surfaces excite differ from each other.

5 more elements

Dependencies are inferred from the claim text.

Surface-mounted antenna and communication apparatus using same

Life of this patent

Surface-mounted antenna and communication apparatus using same

Life of this patent

Abstract

Claims46