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US 7,248,220 B2Granted
Antenna
AssigneeFujikura Ltd.
InventorHiromasa Futamata
Life of this patent
Estimating the term…
Abstract
An antenna comprises a base member (3), a ground conductor (5), a first antenna element (7) and a second antenna element (9). The base member (3) is formed in a thin plate shape and made of dielectric material. The ground conductor (5) is formed of a thin-film shaped and rectangular conductor and disposed on the base member (3). The first antenna element (7) is formed of a thin-film shaped and L-shaped conductor, is disposed on the base member (3) and has one end connected to one end (5A) of the ground conductor (5). The second antenna element (9) is formed of a thin-film shaped and rectangular conductor and is disposed on the base member (3) to be isolated from the ground conductor (5) and the first antenna element (7).
Claims37
An antenna comprising:
- a thin plate-like base member made of dielectric material;
- a ground conductor formed of a thin-film shaped and rectangular conductor and disposed on the base member;
- a first antenna element formed of a thin-film shaped and L-shaped conductor, having one end connected to one end of the ground conductor and disposed on the base member;
- a second antenna element formed of a thin-film shaped and rectangular conductor and disposed on the base member without being directly connected to the ground conductor and the first antenna element;
- a first connecting portion formed on the first antenna element in order to electrically connect the first antenna element to a first conductor of a cable;
- a contact portion formed on the second antenna element in order to electrically connect the second antenna element to a second conductor of the cable via dielectric member;
- and
- a second connecting portion formed on the ground conductor in order to electrically connect the ground conductor to the second conductor of the cable.
5 more elements
An antenna comprising:
- a thin plate-like base member made of dielectric material;
- a first antenna element formed of a thin-film shaped conductor and disposed on the base member so as to form a slit portion opening at a part thereof, the first antenna element having a first radiating portion, a second radiating portion disposed so as to be opposed to the first radiating portion, and an interconnecting portion connected to one end of the first radiating portion and one end of the second radiating portion;
- a second antenna element formed of a thin-film and strip shaped conductor and disposed in the slit portion without being electrically connected to the first antenna element;
- an impedance adjustment element formed of a thin-film and strip shaped conductor and disposed between the second radiating portion of the first antenna element and the second antenna element in the slit portion without being electrically connected to the first antenna element and the second antenna element;
- a first connecting portion formed on the second radiating portion in order to electrically connect the second radiating portion of the first antenna element to a first conductor of a cable;
- a first contact portion formed on the impedance adjustment element in order to contact the impedance adjustment element to the first conductor of the cable covered with a covering material;
- a second connecting portion formed on the second antenna element in order to electrically connect the second antenna element to a second conductor of the cable;
- and
- a second contact portion formed on the first radiating portion in order to contact the first radiating portion of the first antenna element to the second conductor of the cable via a dielectric member.
6 more elements
An antenna comprising:
- a thin plate-like base member made of dielectric material;
- a first antenna element formed of a thin-film shaped conductor and disposed on the base member so as to form a slit portion opening at a part thereof, the first antenna element having a first radiating portion, a second radiating portion disposed so as to be opposed to the first radiating portion, and an interconnecting portion connected to one end of the first radiating portion and one end of the second radiating portion;
- a second antenna element formed of a thin-film and strip shaped conductor and disposed in the slit portion without being electrically connected to the first antenna element;
- a first connecting portion formed on the second radiating portion in order to electrically connect the second radiating portion of the first antenna element to a first conductor of a cable;
- a second connecting portion formed on the second antenna element in order to electrically connect the second antenna element to a second conductor of the cable;
- and
- a contact portion formed on the first radiating portion in order to contact the first radiating portion of the first antenna element to the second conductor of the cable via a dielectric member.
4 more elements
Dependencies are inferred from the claim text.