18298139. Radio-frequency Mixer having Transformer with Passive Termination simplified abstract (Apple Inc.)
Contents
- 1 Radio-frequency Mixer having Transformer with Passive Termination
- 1.1 Organization Name
- 1.2 Inventor(s)
- 1.3 Radio-frequency Mixer having Transformer with Passive Termination - A simplified explanation of the abstract
- 1.4 Simplified Explanation
- 1.5 Potential Applications
- 1.6 Problems Solved
- 1.7 Benefits
- 1.8 Potential Commercial Applications
- 1.9 Original Abstract Submitted
Radio-frequency Mixer having Transformer with Passive Termination
Organization Name
Inventor(s)
Omar E. Elaasar of San Diego CA (US)
Radio-frequency Mixer having Transformer with Passive Termination - A simplified explanation of the abstract
This abstract first appeared for US patent application 18298139 titled 'Radio-frequency Mixer having Transformer with Passive Termination
Simplified Explanation
The patent application describes an electronic device with wireless circuitry featuring a radio-frequency mixer. The mixer includes an input stage, an output stage, and a transformer connecting the two stages. A harmonic rejection circuit is also included to reduce unwanted signals.
- Input stage with transconductance cell
- Output stage with two pairs of mixer transistors
- Transformer with primary and secondary coils
- Harmonic rejection circuit to mitigate unwanted signals
Potential Applications
This technology could be used in wireless communication devices, such as smartphones, tablets, and IoT devices.
Problems Solved
The technology helps in reducing harmonic signals that can interfere with the desired signals in wireless communication systems.
Benefits
Improved signal quality, reduced interference, and enhanced overall performance of wireless devices.
Potential Commercial Applications
Enhancing the performance of wireless communication devices in various industries, including telecommunications, consumer electronics, and IoT.
Original Abstract Submitted
An electronic device may include wireless circuitry having a radio-frequency mixer. The mixer may include an input stage, an output stage, and a transformer coupled between the input and output stages. The input stage may include input transistors forming a transconductance cell. The output stage may include two pairs of mixer transistors configured to receive an oscillating signal. The transformer may include a primary coil coupled between the input transistors and a secondary coil coupled between the two pairs of mixer transistors. A harmonic rejection circuit may be coupled to a center tap of the secondary coil. The harmonic rejection circuit may be configured to mitigate harmonic signals that are associated with the oscillating signal and that are generated at the inputs of the output stage. The harmonic rejection circuit may include an inductor, an optional capacitor, an optional current source transistor, or other passive component.
