摘要:
A slide-type wireless terminal apparatus includes a first casing and a second casing slidable relative to the first casing. The wireless terminal apparatus includes a first circuit board which is provided in the first casing, an antenna which is provided in the first casing, a second circuit board which is provided in the second casing, a sliding member which is disposed between the first circuit board and the second circuit board, the sliding member including a portion which faces the antenna, the sliding member having electrical conductivity and being electrically connected to the first circuit board, and a guide member which is provided in the second casing, the guide member being for guiding the sliding member such that the sliding member slides relative to the guiding member.
摘要:
A slide-type wireless terminal apparatus includes a first casing and a second casing slidable relative to the first casing. The wireless terminal apparatus includes a first circuit board which is provided in the first casing, an antenna which is provided in the first casing, a second circuit board which is provided in the second casing, a sliding member which is disposed between the first circuit board and the second circuit board, the sliding member including a portion which faces the antenna, the sliding member having electrical conductivity and being electrically connected to the first circuit board, and a guide member which is provided in the second casing, the guide member being for guiding the sliding member such that the sliding member slides relative to the guiding member.
摘要:
An antenna adaptable to a plurality of frequencies is comprised of a first element that is connected to a feeding point (feeding portion) for operation and a second element that is connected to a grounding point (grounding portion) in proximity to the first element to be operated by coupling feeding with the first element and is configured to be operated at either or both of a first frequency and a second frequency higher than the first frequency.
摘要:
An antenna device includes a board made of dielectric material, having first and second power feed parts; a first antenna element connected to the first power feed part, using a first wavelength; a second antenna element connected to the second power feed part, using a second wavelength; a ground formed on the board, having a first side and a second side respectively having different lengths and extending in different directions, the length of the first side, compared with the length of second side, which is approximate to a ¼ length of the first wavelength and a ¼ length of the second wavelength; and a parasitic element connected to the ground, which is not parallel to the first side of the ground, a length of the parasitic element is approximate to ¼ length of the second wavelength and an interval of the parasitic element and the second power feed part is less than equals the ¼ length of the second wavelength.
摘要:
An antenna device includes a board made of dielectric material, having first and second power feed parts; a first antenna element connected to the first power feed part, using a first wavelength; a second antenna element connected to the second power feed part, using a second wavelength; a ground formed on the board, having a first side and a second side respectively having different lengths and extending in different directions, the length of the first side, compared with the length of second side, which is approximate to a ¼ length of the first wavelength and a ¼ length of the second wavelength; and a parasitic element connected to the ground, which is not parallel to the first side of the ground, a length of the parasitic element is approximate to ¼ length of the second wavelength and an interval of the parasitic element and the second power feed part is less than equals the ¼ length of the second wavelength.
摘要:
An antenna adaptable to a plurality of frequencies is comprised of a first element that is connected to a feeding point (feeding portion) for operation and a second element that is connected to a grounding point (grounding portion) in proximity to the first element to be operated by coupling feeding with the first element and is configured to be operated at either or both of a first frequency and a second frequency higher than the first frequency.
摘要:
An antenna apparatus including: a first and second antenna elements which transmit or receive radio signal; a ground pattern; and a wiring pattern which is provided on a line segment connecting the first and second antenna elements, and directly connected to the ground pattern, wherein a circumventing path is formed by the wiring pattern and a part of the ground pattern.
摘要:
There is provided a radio apparatus which includes an antenna device and a housing to which the antenna device is attached. The antenna device includes a substrate includes an electrically conductive layer with a slit. The slit is formed at an end of the electrically conductive layer so that the slit includes an opening end. The antenna element is electrically coupled with the electrically conductive layer across the opening end via a matching circuit, and receives an electric power through one end of the antenna element.
摘要:
The present invention relates to an antenna apparatus capable of multifrequency resonance and realizes downsizing and multifrequency resonance. The present invention relates to an antenna apparatus capable of multifrequency resonance or a radio communicating apparatus (e.g., portable phone) including the antenna apparatus; toward a feed element connected to and supplied with electricity from a feeding unit of a circuit substrate (printed circuit substrate), a non-feed element is disposed with over the circuit substrate or outside the circuit substrate; and the feed side or the open side of the feed element is electromagnetically coupled to the non-feed element to enable resonance in the frequency band of the non-feed element in addition to resonance in the frequency band of the feed element.
摘要:
There is provided an antenna device that includes a substrate, a slot provided in the substrate so that the slot includes a cut opening that is close to an edge of the substrate and the slot includes a crooked portion, a conductor section configured to include a slit in an area of the substrate, the area being sandwiched by the slot in the crooked portion, and an antenna that is placed close to the conductor section and is side by side with a surface of the substrate.