Mitsubishi Materials Corporation

Mitsubishi Cable Industries, Ltd.

Shinsuke Yukimoto

Takao Yokoshima

Ryo Saito

Akihiro Bungo

Toshiaki Edamatsu

Toshiaki Mitsubishi Materials Corporation Edamatsu

Provided are an antenna-device substrate which is capable of flexibly adjusting multiple resonance frequencies and can also be made small and thin and an antenna device provided with the same. The present invention is provided with a substrate main body (), first to third elements (to), a ground plane (GND), and a ground connection pattern (), wherein the first element is provided with a feed point (FP) at the base end and extends while having a power feeding-side passive element (P), a first connecting portion (C), and an antenna element (AT); the second element extends while being connected to the first element via a second connecting portion (C); and the third element extends while being connected to the first element via a third connecting portion (C). The first element extends while being spaced apart from the second and third elements and the ground plane such that a stray capacitance can be generated between the first element and each of the second and third elements and the ground plane; and at least one of the first to third elements is patterned from the surface to the rear surface of the substrate main body via a through-hole.

Antenna-device substrate and antenna device

Provided is an antenna device which is capable of flexibly adjusting multiple resonance frequencies. The antenna device is provided with a substrate main body (), a ground pattern (GP), a first element (), a second element () and a third element ().

Antenna device

Provided is an antenna device that is capable of ensuring sufficient antenna performance by maximally utilizing a limited antenna occupied area. The antenna device is provided with a substrate main body (); a ground plane (GND) that is formed on the substrate main body; an antenna-occupied area (AOA) that is provided in contact with one side () of the substrate main body; a slit section (S) that is bored in the ground plane so as to extend from this area in the direction opposite to the one side () of the substrate main body; a power feeding pattern () that is formed so as to extend into the slit section, provided with a power feeding point at the base end side, and connected with a first passive element (P) halfway while the tip end side extends into the antenna-occupied area toward the one side of the substrate main body; an antenna element (AT) of a dielectric antenna that is connected to the tip end of the power feeding pattern and positioned along the one side of the substrate main body; a second passive element (P) that is connected between the antenna element (AT) and the adjoining ground plane; and a ground connection pattern () for connecting the tip end of the power feeding pattern with the ground plane.

Provided is an antenna-device substrate which is capable of flexibly adjusting multiple resonance frequencies, and also provided is an antenna device. The antenna-device substrate is provided with a substrate main body (), a ground plane (GND) on the surface of the substrate main body (), first to third elements (to), and a short part () connecting the first element () and the second element (). The first element is provided with a feed point (FP) at the base end and extends comprising a first connector (C) of a first passive element (P). The second element is connected to the ground plane and is provided with a first antenna element (AT) at the tip end, and extends comprising a second connector (C) of a second passive element (P) and comprising a fourth passive element (P). The third element extends comprising a third connector (C) of a third passive element (P). The first element extends with a gap provided between the first element and each of the second element, the third element, and the ground plane such that a floating capacitance can be generated therebetween.

An antenna element has an upstanding section erected from a base member; a tuning section extended from the upper end of the upstanding section into one direction in a parallel plane parallel to the base member, bent in the middle, and then extended in the direction opposite the one direction; and an open element section extended from the front end of the tuning section in the direction in which the open element section spirally turns in the parallel plane about the upstanding section.

Provided is an antenna device with which the degradation of characteristics arising from the fact that the antenna has been miniaturized and made thinner is reduced and in which it is possible to increase the gain and to widen the coverage area by improving the characteristics of the internal antenna. The device is equipped with a circuit board, a wireless circuit component which is mounted on the substrate, an internal antenna which is connected to the wireless circuit component which is mounted on the substrate, a circuit-side ground pattern which is connected to the wireless circuit component which is mounted on the substrate, and a dedicated antenna ground paten which is connected to the internal antenna which is mounted on the circuit board.

An antenna device, wherein the polarization is improved by an identical antenna or substrate, and a higher gain and a smaller size are provided even when the installation conditions are changed. The antenna includes a base provided with a power feed point electrically connected to a power feed unit in a wireless circuit, an antenna element set up on the base and electrically connected to the power feed point, and a ground pattern provided on the base. The antenna element includes a rise part which rises from the base and an element part extending from the top edge of the rise in any direction in the plane parallel to the base. The ground pattern is divided into at least two ground regions by a boundary, and a ground connection part which electrically and locally connects the ground regions.

There is provided an antenna device including a substrate, an earth section which is disposed on a portion of the substrate, a feed point which is disposed on the substrate, a loading section disposed on the substrate and constructed with a line-shaped conductor pattern which is formed in a longitudinal direction of an elementary body made of a dielectric material, an inductor section which connects one end of the conductor pattern to the earth section, and a feed point which feeds a current to a connection point of the one end of the conductor pattern and the inductor section, wherein a longitudinal direction of the loading section is arranged to be parallel to an edge side of the earth section.

Growing community of inventors

Tokyo, Japan

Shinsuke Yukimoto