최소 단어 이상 선택하여야 합니다.
최대 10 단어까지만 선택 가능합니다.
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
DataON 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Edison 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0400888 (2009-03-10) |
등록번호 | US8009111 (2011-08-15) |
발명자 / 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 | 피인용 횟수 : 1 인용 특허 : 353 |
An apparatus including a wireless communications device has an internal antenna system located within the wireless communications device. The internal antenna system includes a passive antenna set comprising at least one antenna element having at least one multilevel structure, a feeding point to th
An apparatus including a wireless communications device has an internal antenna system located within the wireless communications device. The internal antenna system includes a passive antenna set comprising at least one antenna element having at least one multilevel structure, a feeding point to the at least one antenna element and a ground plane. The feeding point and a point on the ground plane define an input/output port for said passive antenna set. The passive antenna set provides a similar impedance level and radiation pattern at two or more frequency bands such that the passive antenna set is capable of both transmitting and receiving wireless signals on selected channels. The selected channels are selectable from a plurality of channels throughout an entire frequency range within each of said two or more frequency bands.
What is claimed is: 1. An apparatus comprising:a wireless communications device having an internal antenna system located within the wireless communications device, wherein said internal antenna system includes a passive antenna set capable of operating in two or more frequency bands;wherein said pa
What is claimed is: 1. An apparatus comprising:a wireless communications device having an internal antenna system located within the wireless communications device, wherein said internal antenna system includes a passive antenna set capable of operating in two or more frequency bands;wherein said passive antenna set comprises at least one antenna element, a feeding point to said antenna element, and a ground plane;wherein said at least one antenna element comprises a structure including at least two levels of detail, a first level of detail for an overall structure defined by a plurality of generally identifiable geometric elements and a second level of detail defined by a subset of the plurality of geometric elements forming said overall structure;wherein said structure does not define a self-similar fractal structure;wherein at least one of either a perimeter of contact or an area of overlap between said geometric elements is only a fraction of a total perimeter or a total area of the geometric elements, respectively, for a majority of said geometric elements such that it is possible to generally identify the majority of said plurality of geometric elements within said structure;wherein said plurality of generally identifiable geometric elements are electromagnetically coupled to each other such that said at least one antenna element is not composed of a plurality of substantially isolated single band antenna elements, each of said single band antenna elements operating in one of said two or more frequency bands;wherein said feeding point and a point on the ground plane define an input/output port for said passive antenna set and said passive antenna set provides a similar impedance level and radiation pattern at said two or more frequency bands such that the passive antenna set is capable of both transmitting and receiving wireless signals on selected channels, the selected channels selectable from a plurality of channels throughout an entire frequency range within each of said two or more frequency bands.
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