Antenna device and radio communication equipment including the same
AssigneeMurata Manufacturing Co., Ltd.
InventorsShoji Nagumo, Kengo Onaka, Takashi Ishihara, Jin Sato
Life of this patent
Estimating the term…
Abstract
A feed radiation electrode including two branched radiation electrodes is provided on the surface of a substrate. Non-feed radiation electrodes are provided on both sides of the feed radiation electrode and near the branched radiation electrodes. The branched radiation electrode and the non-feed radiation electrode are double-resonated in the same frequency band. The branched radiation electrode and the non-feed radiation electrode are double-resonated in the same frequency band which is higher than that of the branched radiation electrode and the non-feed radiation electrode.
Claims18
An antenna device comprising:
- a substrate made of a dielectric or a magnetic material;
- a feed element including a feeding terminal and a feed radiation electrode electrically connected to the feeding terminal;
- and
- a plurality of non-feed elements each including a ground terminal and a non-feed radiation electrode electrically connected to the ground terminal;
- the feed radiation electrode and the non-feed radiation electrodes being arranged on the surface of the substrate such that the non-feed radiation electrodes extend in the vicinity to and along the feed radiation electrode.
An antenna device comprising:
- a plurality of antennas;
- and
- a circuit substrate having the plurality of antennas provided thereon,
- the plurality of antennas each including a feed element having a feeding terminal and a feed radiation electrode extending from the feeding terminal, and a non-feed element having a ground electrode and a non-feed radiation electrode extending from the ground electrode, the feed element and the non-feed element being provided on a surface of a substrate,
- the feed radiation electrode and the non-feed radiation electrode of each of the plurality of antennas having effective line lengths different from each other ,
- the circuit substrate being provided with a ground pattern connecting the ground electrodes to each other and a feeding pattern connecting the feeding terminals to a common signal source.
Dependencies are inferred from the claim text.