Planar inverted-f antennas, and modules and systems in which they are incorporated
AssigneeFreescale Semiconductor, Inc.
InventorsQiang Li, Jon T. Adams, Olin L. Hartin
Life of this patent
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Abstract
An embodiment of an antenna includes a radiation frame and a planar inverted-F antenna (PIFA). The radiation frame has a frame shape that defines a central opening. The PIFA includes an antenna arm, a feed arm, and a shorting arm. A distal end of the shorting arm is conductively coupled with the radiation frame. The antenna may be coupled to a substrate of an RF module. The RF module may be included in a system that also includes a non-RF component that produces a signal for transmission. In such a system, the RF module is configured to receive the signal, convert the signal to an RF signal, and radiate the RF signal over an air interface.
Claims20
An antenna comprising:
- a radiation frame having a frame shape that defines a central opening;
- and
- a planar inverted-F antenna (PIFA) that includes an antenna arm, a feed arm, and a shorting arm, wherein a distal end of the shorting arm is conductively coupled with the radiation frame.
A radio frequency (RF) module comprising:
- a substrate;
- and
- an antenna coupled to the substrate, and having
- a radiation frame with a frame shape that defines a central opening, wherein the radiation frame forms a first portion of a first metal layer of the module, and
- a planar inverted-F antenna that includes an antenna arm, a feed arm, and a shorting arm, wherein a distal end of the shorting arm is conductively coupled with the radiation frame.
A system comprising:
- a non-RF component that produces a signal for transmission;
- and an RF module electrically coupled to but physically distinct from the non-RF component, wherein the module is configured to receive the signal, convert the signal to an RF signal, and radiate the RF signal over an air interface, and wherein the module includes a substrate and an antenna coupled to the substrate, and wherein the antenna includes
- a radiation frame with a frame shape that defines a central opening, wherein the radiation frame forms a first portion of a first metal layer of the module, and
- a planar inverted-F antenna that includes an antenna arm, a feed arm, and a shorting arm, wherein a distal end of the shorting arm is conductively coupled with the radiation frame.
Dependencies are inferred from the claim text.