Antenna device and communications apparatus comprising same
First Claim
1. An antenna device, comprising:
- (a) a mounting substrate having a ground portion and a non-ground portion;
(b) a chip antenna mounted onto said non-ground portion, which comprises a substrate, a first radiation electrode formed on said substrate, a power-supplying electrode connected by direct connection to or capacitance coupling with the other end of said first radiation electrode, and a terminal electrode connected by direct connection to or capacitance coupling with one end of said first radiation electrode; and
(c) at least one second radiation electrode formed in a conductor pattern on said non-ground portion, said second radiation electrode having one end connected by direct connection to or capacitance coupling with said terminal electrode and the other end which is an open end, and a cavity existing between said chip antenna and/or said second radiation electrode and said ground portion of said mounting substrate.
1 Assignment
0 Petitions
Accused Products
Abstract
An antenna device comprising (a) a mounting substrate having a ground portion and a non-ground portion, (b) a chip antenna mounted onto said non-ground portion, which comprises a substrate, a first radiation electrode formed on said substrate, a power-supplying electrode connected or not connected to the other end of said first radiation electrode, and a terminal electrode connected or not connected to one end of said first radiation electrode, and (c) at least one second radiation electrode formed in a conductor pattern on said non-ground portion, said second radiation electrode having one end connected or not connected to said terminal electrode and the other end which is an open end, and a cavity existing between said chip antenna and/or said second radiation electrode and said ground portion.
86 Citations
20 Claims
-
1. An antenna device, comprising:
-
(a) a mounting substrate having a ground portion and a non-ground portion; (b) a chip antenna mounted onto said non-ground portion, which comprises a substrate, a first radiation electrode formed on said substrate, a power-supplying electrode connected by direct connection to or capacitance coupling with the other end of said first radiation electrode, and a terminal electrode connected by direct connection to or capacitance coupling with one end of said first radiation electrode; and (c) at least one second radiation electrode formed in a conductor pattern on said non-ground portion, said second radiation electrode having one end connected by direct connection to or capacitance coupling with said terminal electrode and the other end which is an open end, and a cavity existing between said chip antenna and/or said second radiation electrode and said ground portion of said mounting substrate. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. An antenna device, comprising:
-
(a) a mounting substrate having a ground portion and a non-ground portion; (b) a chip antenna mounted onto said non-ground portion, which comprises a substrate, a first radiation electrode formed on said substrate, a power-supplying electrode connected by direct connection to or capacitance coupling with the other end of said first radiation electrode, and a terminal electrode connected by direct connection to or capacitance coupling with one end of said first radiation electrode; and (c) at least one second radiation electrode formed in a conductor pattern on a non-ground portion, which is an opposing surface of the chip-antenna-carrying surface of said mounting substrate, said second radiation electrode being connected by direct connection to or capacitance coupling with said terminal electrode, with its other end being an open end, and a cavity existing between said chip antenna and/or said second radiation electrode and said ground portion of said mounting substrate. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15)
-
-
16. An antenna device, comprising:
-
(a) a mounting substrate having a ground portion and a non-ground portion; (b) a sub-substrate fixed to said mounting substrate with space; (c) a chip antenna mounted onto said sub-substrate, which comprises a substrate, a first radiation electrode formed on said substrate, a power-supplying electrode connected by direct connection to or capacitance coupling with the other end of said first radiation electrode, and a terminal electrode connected by direct connection to or capacitance coupling with one end of said first radiation electrode; and (d) at least one second radiation electrode formed in a conductor pattern on the chip-antenna-carrying surface of said sub-substrate or its opposing surface, said second radiation electrode being connected by direct connection to or capacitance coupling with said terminal electrode, with its other end being an open end, and a cavity existing between said chip antenna and/or said second radiation electrode and the ground portion of said mounting substrate. - View Dependent Claims (17, 18, 19, 20)
-
Specification