Array antenna device and radio equipment
AssigneeMurata Manufacturing Co., Ltd.
InventorsKazutaka Higashi, Ikuo Takakuwa
Life of this patent
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Abstract
A dielectric line has a conductor plate and dielectric strip on the side of a fixed portion and a dielectric line including a conductor plate and dielectric strip on the side of a moving portion. A directional coupler comprises the dielectric lines. On a dielectric plate of an array antenna portion a plurality of linear array antennas are formed and connected to a microstrip as a feed portion. By displacement of the moving portion, the feed point to the feed portion is changed and the feed phase to each linear array antenna and the feed power to each element antenna are changed. Thus, the direction of a beam is changed.
Claims16
An array antenna device comprising an array antenna having a plurality of element antennas and a linear feed portion used in common for the plurality of element antennas, a first line for transmitting a transmission signal or reception signal, and a second line electromagnetically coupled to the first line and the feed portion respectively and for communicating a signal between the first line and the feed portion, wherein the second line is provided so as to be freely displaced from the first line and the feed portion, and wherein by the displacement, a coupling position of the second line to the first line and the feed portion is changed.
Radio equipment using an array antenna device, the array antenna device comprising an array antenna having a plurality of element antennas and a linear feed portion used in common for the plurality of element antennas, a first line for transmitting a transmission signal or reception signal, and a second line electromagnetically coupled to the first line and the feed portion respectively and for communicating a signal between the first line and the feed portion, wherein the second line is provided so as to be freely displaced from the first line and the feed portion, and wherein by the displacement, a coupling position of the second line to the first line and the feed portion is changed;
- further comprising a driver for displacing the second line relative to the first line and the feed portion, and wherein a transmitter circuit or receiver circuit is connected to the first line.
Dependencies are inferred from the claim text.