Dual mode antenna for personal computer card
AssigneeSierra Wireless, Inc.
InventorsCraig S. Gauld, Ronald J. Vanderhelm, Andrey Gleener
Life of this patent
Estimating the term…
Abstract
An extendable antenna for a personal computer card uses two main antenna elements. A movable antenna element can be positioned in an extended position such that the base of the second antenna element electrically contacts the top of the other antenna element. The antenna in the extended position is connected to the antenna port through matching circuitry. In a closed position of the antenna, the second antenna element is electrically connected to the antenna port bypassing the matching circuitry. In one embodiment, the antenna is a quarter-wave length antenna in the closed position and a half-wave length antenna in the extended position.
Claims23
An antenna comprising:
- a first antenna element electrically connected at a first end to an antenna port through a matching circuit;
- and
- a second antenna element operably connected to the first antenna element, wherein the second antenna element can slide with respect to the first antenna element, and wherein when the second antenna element is in an extended position, a first end of the second antenna element electrically contacts a second end of the first antenna element, and when the second antenna element is in a closed position, the second antenna element is directly electrically connected to the antenna port bypassing the matching circuit.
An antenna comprising:
- a first antenna element electrically connected at a first end to an antenna port through a matching circuit;
- and
- a second antenna element operably connected to the first antenna element, wherein the second antenna element can slide with respect to the first antenna element, and wherein when the second antenna element is in an extended position, a first end of the second antenna element electrically contacts a second end of the first antenna element, and when the second antenna element is in a closed position, the second antenna element is electrically connected to the antenna port bypassing the matching circuit, wherein the first antenna element comprises a metal trace on a circuit board.
An antenna comprising:
- a first antenna element electrically connected at a first end to an antenna port through a matching circuit;
- and
- a second antenna element operably connected to the first antenna element, wherein the second antenna element can slide with respect to the first antenna element, and wherein when the second antenna element is in an extended position, a first end of the second antenna element electrically contacts a second end of the first antenna element, and when the second antenna element is in a closed position, the second antenna element is electrically connected to the antenna port bypassing the matching circuit, wherein when the second antenna element is in an extended position, the second antenna element and the first antenna element are electrically connected though a contact wire and metal sleeve.
Dependencies are inferred from the claim text.