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US 5,854,606 AGranted
Surface-mount antenna and communication apparatus using same
AssigneeMurata Manufacturing Co., Ltd.
InventorsKazunari Kawahata, Kazuhisa Yamaki
Life of this patent
Estimating the term…
Abstract
A compact surface-mount antenna is constructed from a rectangular-prism-shaped base member made from a dielectric material or a magnetic material. A through-hole is formed between one end-face and the opposing end-face in the base member. A radiation electrode is formed on the inside surface of the through-hole. One end of the radiation electrode is connected to a ground electrode formed on the one end-face, and the other end of the radiation electrode serves as an open end on the opposite end-face. A power-supplying electrode is formed through a dielectric gap disposed around the open end on the opposite end-face.
Claims59
A surface-mount antenna comprising:
- a base member comprising at least one of a dielectric material and a magnetic material, the base member having a main surface and an end surface at an edge of the main surface, the end surface being dividable into end-face portions;
- a through-hole formed between one end-face portion and an opposite end-face portion in said base member;
- a ground electrode formed on said one end-face portion;
- a radiation electrode formed on an inside surface of said through-hole, one end of said radiation electrode being connected to said ground electrode and another end comprising an open end on the opposite end-face portion;
- and
- a power-supplying electrode disposed around said open end on the opposite end-face portion, a gap being provided between the power supplying electrode and the radiation electrode.
3 more elements
A surface-mount antenna comprising:
- a base member comprising at least one of a dielectric material and a magnetic material, the base member having a main surface and an end surface at an edge of the main surface, the end surface being dividable into end-face portions;
- a through-hole formed between one end-face portion and an opposite end-face portion in said base member;
- a ground electrode formed on said one end-face portion;
- a power-supplying electrode formed on the opposite end-face portion;
- and
- a radiation electrode formed on a portion of an inside surface of said through-hole, part of said inside surface not having said radiation electrode;
- wherein one end of said radiation electrode is connected to said ground electrode and the other end extends toward the opposite end-face portion and serves as an open end.
4 more elements
A surface-mount antenna comprising:
- a base member comprising at least one of a dielectric material and a magnetic material, the base member having a main surface and an end surface at an edge of the main surface, the end surface being dividable into end-face portions;
- a hole in said base member extending from one end-face portion toward an opposite end-face portion, said hole terminating prior to said opposite end-face portion;
- a radiation electrode formed on an inside surface of said hole;
- and
- a ground electrode formed on said one end-face portion;
- wherein one end of said radiation electrode is connected to said ground electrode and another end comprises an open end near the opposite end-face portion;
- and
- a power-supplying electrode formed on the opposite end-face portion at a position in-line with an axis extending through the hole.
5 more elements
A surface-mount antenna comprising:
- a base member comprising at least one of a dielectric material and a magnetic material, the base member having a main surface and an end surface at an edge of the main surface, the end surface being dividable into end-face portions;
- at least a first through-hole and a second through-hole formed between one end-face portion and an opposite end-face portion in said base member;
- a pattern electrode formed on said one end-face portion;
- a ground electrode formed on the opposite end-face portion;
- and
- a first radiation electrode and a second radiation electrode formed on inside surfaces of said first through-hole and said second through-hole, respectively;
- wherein one end of each of said first radiation electrode and said second radiation electrode is connected to said pattern electrode;
- another end of said first radiation electrode comprising an open end on the opposite end-face portion;
- another end of said second radiation electrode connected to said ground electrode;
- and
- a power-supplying electrode disposed around said open end on the opposite end-face portion, a gap being provided between the power supplying electrode and the radiation electrode.
8 more elements
A surface-mount antenna comprising:
- a base member comprising at least one of a dielectric material and a magnetic material, the base member having a main surface and an end surface at an edge of the main surface, the end surface being dividable into end-face portions;
- at least a first through-hole and a second through-hole formed between one end-face portion and an opposite end-face portion in said base member;
- a pattern electrode formed on the opposite end-face portion;
- a power-supplying electrode formed on said one end-face portion;
- a ground electrode formed on said one end-face portion;
- and
- a first radiation electrode and a second radiation electrode formed on inside surfaces of said first through-hole and said second through-hole, respectively;
- wherein one end of each of said first radiation electrode and said second radiation electrode is connected to said pattern electrode;
- another end of said first radiation electrode extends toward said power-supplying electrode and comprises an open end;
- and
- another end of said second radiation electrode is connected to said ground electrode.
8 more elements
A surface-mount antenna comprising:
- a base member comprising at least one of a dielectric material and a magnetic material, the base member having a main surface and an end surface at an edge of the main surface, the end surface being dividable into end-face portions;
- a hole in said base member extending from one end-face portion toward an opposite end-face portion, said hole terminating prior to said opposite end-face portion;
- at least one through-hole formed between said one end-face portion and the opposite end-face portion;
- a pattern electrode formed on said one end-face portion;
- a ground electrode formed on the opposite end-face portion;
- and
- a first radiation electrode and a second radiation electrode formed on inside surfaces of said hole and said through-hole, respectively;
- wherein one end of said first radiation electrode in said hole is connected to said pattern electrode and another end of said first radiation electrode comprises an open end near the opposite end-face portion;
- a power-supplying electrode formed on the opposite end-face portion at a position in-line with an axis extending through said hole, and
- one end of said second radiation electrode being connected to said pattern electrode and another end of said second radiation electrode being connected to said ground electrode.
7 more elements
A communication apparatus comprising:
- at least one of an electromagnetic frequency receiver and transmitter;
- a surface-mount antenna coupled to at least one of the transmitter and receiver;
- the surface-mount antenna comprising:
- a base member comprising at least one of a dielectric material and a magnetic material, the base member having a main surface and an end surface at an edge of the main surface, the end surface being dividable into end-face portions;
- a through-hole formed between one end-face portion and an opposite end-face portion in said base member;
- a ground electrode formed on said one end-face portion;
- a radiation electrode formed on an inside surface of said through-hole, one end of said radiation electrode being connected to said ground electrode and another end comprising an open end on the opposite end-face portion;
- and
- a power-supplying electrode disposed around said open end on the opposite end-face portion, a gap being provided between the power supplying electrode and the radiation electrode.
6 more elements
A communication apparatus comprising:
- at least one of an electromagnetic frequency receiver and transmitter;
- a surface mount antenna coupled to at least one of the transmitter and receiver;
- the surface-mount antenna comprising:
- a base member comprising at least one of a dielectric material and a magnetic material, the base member having a main surface and an end surface at an edge of the main surface, the end surface being dividable into end-face portions;
- a through-hole formed between one end-face portion and an opposite end-face portion in said base member;
- a ground electrode formed on said one end-face portion;
- a power-supplying electrode formed on the opposite end-face portion;
- and
- a radiation electrode formed on a portion of an inside surface of said through-hole, part of said inside surface not having said radiation electrode;
- wherein one end of said radiation electrode is connected to said ground electrode and the other end extends toward the opposite end-face portion and serves as an open end.
7 more elements
A communication apparatus comprising:
- at least one of an electromagnetic frequency receiver and transmitter;
- a surface mount antenna coupled to at least one of the transmitter and receiver;
- the surface-mount antenna comprising:
- a base member comprising at least one of a dielectric material and a magnetic material, the base member having a main surface and an end surface at an edge of the main surface, the end surface being dividable into end-face portions;
- a hole in said base member extending from one end-face portion toward an opposite end-face portion, said hole terminating prior to said opposite end-face portion;
- a radiation electrode formed on an inside surface of said hole;
- and
- a ground electrode formed on said one end-face portion;
- wherein one end of said radiation electrode is connected to said ground electrode and another end comprises an open end near the opposite end-face portion;
- and
- a power-supplying electrode formed on the opposite end-face portion at a position in-line with an axis extending through the hole.
8 more elements
A communication apparatus comprising:
- at least one of an electromagnetic frequency receiver and transmitter;
- a surface mount antenna coupled to at least one of the transmitter and receiver;
- the surface-mount antenna comprising:
- a base member comprising at least one of a dielectric material and a magnetic material, the base member having a main surface and an end surface at an edge of the main surface, the end surface being dividable into end-face portions;
- at least a first through-hole and a second through-hole formed between one end-face portion and an opposite end-face portion in said base member;
- a pattern electrode formed on said one end-face portion;
- a ground electrode formed on the opposite end-face portion;
- and
- a first radiation electrode and a second radiation electrode formed on inside surfaces of said first through-hole and said second through-hole, respectively;
- wherein one end of each of said first radiation electrode and said second radiation electrode is connected to said pattern electrode;
- another end of said first radiation electrode comprising an open end on the opposite end-face portion;
- another end of said second radiation electrode connected to said ground electrode;
- and
- a power-supplying electrode disposed around said open end on the opposite end-face portion, a gap being provided between the power supplying electrode and the radiation electrode.
11 more elements
A communication apparatus comprising:
- at least one of an electromagnetic frequency receiver and transmitter;
- a surface mount antenna coupled to at least one of the transmitter and receiver;
- the surface-mount antenna comprising:
- a base member comprising at least one of a dielectric material and a magnetic material, the base member having a main surface and an end surface at an edge of the main surface, the end surface being dividable into end-face portions;
- at least a first through-hole and a second through-hole formed between one end-face portion and an opposite end-face portion in said base member;
- a pattern electrode formed on the opposite end-face portion;
- a power-supplying electrode formed-on said one end-face portion;
- a ground electrode formed on said one end-face portion;
- and
- a first radiation electrode and a second radiation electrode formed on inside surfaces of said first through-hole and said second through-hole, respectively;
- wherein one end of each of said first radiation electrode and said second radiation electrode is connected to said pattern electrode;
- another end of said first radiation electrode extends toward said power-supplying electrode and comprises an open end;
- and
- another end of said second radiation electrode is connected to said ground electrode.
11 more elements
A communication apparatus comprising:
- at least one of an electromagnetic frequency receiver and transmitter;
- a surface mount antenna coupled to at least one of the transmitter and receiver;
- the surface-mount antenna comprising:
- a base member comprising at least one of a dielectric material and a magnetic material, the base member having a main surface and an end surface at an edge of the main surface, the end surface being dividable into end-face portions;
- a hole in said base member extending from one end-face portion toward an opposite end-face portion, said hole terminating prior to said opposite end-face portion;
- at least one through-hole formed between said one end-face portion and the opposite end-face portion;
- a pattern electrode formed on said one end-face portion;
- a ground electrode formed on the opposite end-face portion;
- and
- a first radiation electrode and a second radiation electrode formed on inside surfaces of said hole and said through-hole, respectively;
- wherein one end of said first radiation electrode in said hole is connected to said pattern electrode and another end of said first radiation electrode comprises an open end near the opposite end-face portion;
- a power-supplying electrode formed on the opposite end-face portion at a position in-line with an axis extending through said hole, and
- one end of said second radiation electrode being connected to said pattern electrode and another end of said second radiation electrode being connected to said ground electrode.
10 more elements
A surface-mount antenna comprising:
- a base member comprising at least one of a dielectric material and a magnetic material, the base member having a main surface and an end surface at an edge of the main surface, the end surface being dividable into end-face portions;
- a hole provided between one end-face portion and extending toward an opposite end-face portion in said base member;
- a ground electrode formed on an end-face portion;
- a radiation electrode formed on an inside surface of said hole, one end of said radiation electrode being coupled to said ground electrode and another end comprising an open end;
- a power-supplying electrode formed on an end-face portion;
- and
- a capacitance being provided between said power-supplying electrode and said open end of the radiation electrode.
4 more elements
A surface-mount antenna comprising:
- a base member comprising at least one of a dielectric material and a magnetic material, the base member having a first surface and a second surface;
- a hole provided between said first surface and said second surface in said base member;
- a ground electrode formed on said first surface;
- a radiation electrode formed on an inside surface of said hole, one end of said radiation electrode being connected to said ground electrode and another end comprising an open end adjacent to said second surface;
- and
- a power-supplying electrode disposed around said open end, the open end being coupled to said power-supplying electrode via a means for forming capacitance.
3 more elements
A surface-mount antenna comprising:
- a base member comprising at least one of a dielectric material and a magnetic material, the base member having a first surface and a second surface;
- a hole provided between said first surface and said second surface in said base member;
- a ground electrode formed on said first surface;
- a radiation electrode formed on an inside surface of said hole, one end of said radiation electrode being connected to said ground electrode and another end comprising an open end adjacent to said second surface;
- and
- a power-supplying electrode disposed around said open end, the open end being coupled to said power-supplying electrode via a capacitance.
3 more elements
Dependencies are inferred from the claim text.