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US 6,642,891 B2Granted
Antenna with improved efficiency
AssigneeAlcatel
InventorJosé Marie Baro
Life of this patent
Estimating the term…
Abstract
A transceiver, which may be a telephone for mobile networks, includes a metal or screened casing, an antenna support mounted on the casing at one end of the antenna support, and an antenna mounted on the other end of the antenna support. The antenna support has a physical or electrical length substantially equal to one quarter of the wavelength of waves emitted by the antenna. The transceiver has improved link efficiency.
Claims30
A transceiver, comprising:
- a casing;
- an antenna support having a first end and a second end, the antenna support mounted on the casing at the first end;
- and
- an antenna mounted on the second end of the antenna support;
- wherein the antenna support defines a length between the casing and the antenna, the length being substantially equal to one quarter of the wavelength of waves emitted by the antenna,
- wherein said antenna support is substantially non-radiating, and further wherein said antenna support is mounted on an external surface of said casing, and said antenna is external to said casing.
3 more elements
A transceiver, comprising:
- a casing comprising an inner casing and an outer casing, which encloses the inner casing and an antenna support;
- the antenna support having a first end and a second end, the antenna support mounted on the inner casing at the first end;
- an antenna mounted on the second end of the antenna support;
- wherein the antenna support defines a length between the inner casing and the antenna, the length being substantially equal to one quarter of the wavelength of waves emitted by the antenna, and
- wherein the antenna support is formed of two stripline conductors.
2 more elements
A transceiver, comprising:
- a casing, comprising an inner casing and an outer casing that encloses the inner casing and an antenna support;
- the antenna support, having a first end and a second end, the antenna support being mounted on the inner casing at the first end, the antenna support being formed of two stripline conductors;
- and
- an antenna mounted on the second end of the antenna support;
- wherein the antenna support defines a length between the inner casing and the antenna, the length being substantially equal to one quarter of the wavelength of waves emitted by the antenna;
- and wherein a first conductor of the two stripline conductors has a shape that conforms to an adjacent local contour of the outer casing, and partly surrounds a second conductor of the two stripline conductors;
- and wherein the first has a quarter-circle shape section disposed against the conductor outer casing.
4 more elements
A transceiver, comprising:
- a casing;
- a current-trapping antenna support for limiting currents in the casing, the current-trapping antenna support having an entire length between a first end and a second end of the current trapping antenna support, the current-trapping antenna support mounted on the casing at the first end, a quarter-wavelength choke being defined by the entire length of the current-trapping antenna support;
- and
- an antenna mounted on the second end of the current-trapping antenna support, and further wherein said antenna support is mounted on an external surface of said casing, and said antenna is external to said casing.
1 more element
Dependencies are inferred from the claim text.