Antenna Structure and Radio Communication Apparatus Including the Same
First Claim
1. An antenna structure comprising:
- a board having a ground region in which a ground is formed and a non-ground region, the ground region and the non-ground region being positioned adjacent to each other such that the non-ground region is disposed on one end of the board;
a dielectric base member provided in at least part of the non-ground region of the board, the dielectric base member including a first surface and a second surface next to the first surface;
a feed radiation electrode provided on at least the first surface and the second surface of the dielectric base member, a first end of the feed radiation electrode defining a feed end on the first surface of the dielectric base member, a second end of the feed radiation electrode defining an open end, the feed radiation electrode being configured such that a current path extending from the feed end to the open end has a loop shape and such that a capacitance is formed between a portion of the feed radiation electrode on the first surface of the dielectric base member and the feed electrode; and
a feed electrode connected to the feed end of the feed radiation electrode and provided on the side surface of the dielectric base member.
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Accused Products
Abstract
An antenna structure including a dielectric base member provided in a non-ground region of a circuit board and a feed radiation electrode provided on the dielectric base member. An outer side surface of the dielectric base member along an edge of one end of the circuit board defines a side surface. A feed electrode is provided in the non-ground region of the circuit board or outside the circuit board such that the feed electrode is disposed along side surfaces of the dielectric base member. One end of the feed radiation electrode defines a feed end connected to the feed electrode, and the other end of the feed radiation electrode defines an open end. The feed radiation electrode has a configuration in which a current path extending from the feed end to the open end has a loop shape so as to be provided on at least the side surface and an upper surface of the dielectric base member. A feed radiation electrode portion formed on the side surface of the dielectric base member 6 forms a capacitance between the feed radiation electrode portion and the feed electrode for improving antenna characteristics.
13 Citations
11 Claims
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1. An antenna structure comprising:
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a board having a ground region in which a ground is formed and a non-ground region, the ground region and the non-ground region being positioned adjacent to each other such that the non-ground region is disposed on one end of the board;
a dielectric base member provided in at least part of the non-ground region of the board, the dielectric base member including a first surface and a second surface next to the first surface;
a feed radiation electrode provided on at least the first surface and the second surface of the dielectric base member, a first end of the feed radiation electrode defining a feed end on the first surface of the dielectric base member, a second end of the feed radiation electrode defining an open end, the feed radiation electrode being configured such that a current path extending from the feed end to the open end has a loop shape and such that a capacitance is formed between a portion of the feed radiation electrode on the first surface of the dielectric base member and the feed electrode; and
a feed electrode connected to the feed end of the feed radiation electrode and provided on the side surface of the dielectric base member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification