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US 2025/0088153 A1Published application
Intermodulation distortion mitigation
AssigneeApple Inc.
InventorsHaowei Jiang, Milad Darvishi, Ming-Da Tsai
Life of this patent
Estimating the term…
Abstract
An electronic device includes one or more antennas and a radio frequency front end (RFFE) that is coupled to the one or more antennas. The RFPE includes a differential circuit and a tail current source. The tail current source includes a transistor with a drain coupled to the differential circuit via a tail node. The tail current source also includes a capacitance coupled between the drain and a gate of the transistor.
Claims20
An electronic device, comprising:
- one or more antennas;
- and
- a radio frequency front end (RFFE) coupled to the one or more antennas, wherein the RFFE comprises
- a differential circuit, and
- a tail current source that includes a transistor with a drain coupled to the differential circuit via a tail node and a capacitance coupled between the drain and a gate of the transistor.
2 more elements
A transceiver, comprising:
- a filter coupled to one or more antennas;
- and
- an amplifier coupled to the filter, wherein the amplifier includes
- a differential circuit, and
- a tail current source that includes a transistor with a drain coupled to the differential circuit via a tail node,
- a capacitance coupled between the drain and a gate of the transistor, and a resistance coupled to the gate of the transistor to form a bias filter with the capacitance.
3 more elements
An apparatus comprising:
- a differential circuit;
- a transistor that comprises a drain coupled to the differential circuit via a tail node, a source coupled to a ground node, and a gate;
- and
- a bias filter that includes a capacitance coupled between the drain and the gate.
1 more element
Dependencies are inferred from the claim text.