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US 6,784,843 B2Granted
Multi-resonance antenna
AssigneeMurata Manufacturing Co., Ltd.
InventorsKengo Onaka, Shoji Nagumo, Takashi Ishihara, Jin Sato, Akira Miyata, Kazunari Kawahata
Life of this patent
Estimating the term…
Abstract
In a multi-resonance antenna, at an open end of a radiation electrode of a feeding element and an open end of a radiation electrode of a parasitic element capacitance loading electrodes and ground electrodes are arranged opposite to each other. In the opposing portions, electric-field deflectors are provided, thus reducing the electric-field coupling between the feeding element and the parasitic element.
Claims15
A multi-resonance antenna comprising:
- a feeding element including a first radiation electrode and a feeding electrode for feeding power to the first radiation electrode;
- a parasitic element including a second radiation electrode arranged next to the first radiation electrode;
- a ground electrode arranged opposite to an open end of at least one of the first radiation electrode and the second radiation electrode with a predetermined gap therebetween;
- and
- an electric-field deflector for suppressing electric-field coupling between the feeding element and the parasitic element, the electric-field deflector being disposed in a portion where said open end of said at least one of the first radiation electrode and the second radiation electrode and said ground electrode are opposed to each other.
2 more elements
A multi-resonance antenna comprising:
- a dielectric base member;
- a first radiation electrode and a second radiation electrode including strips arranged substantially parallel to each other on a major surface of the dielectric base member;
- a feeding electrode for feeding power to the first radiation electrode;
- a ground electrode for grounding the second radiation electrode;
- first and second capacitance loading electrodes disposed at open ends of the first and second radiation electrodes, respectively;
- a ground electrode arranged opposite to at least one of the first and second capacitance loading electrodes;
- wherein said at least one of the first and second capacitance loading electrodes and the ground electrode are provided with protruding electrodes which extend in opposite directions in a portion where said at least one of the first and second capacitance loading electrodes and the ground electrode are opposed to each other.
4 more elements
Dependencies are inferred from the claim text.