18060295. Oscillator Feedthrough Calibration simplified abstract (QUALCOMM Incorporated)

Oscillator Feedthrough Calibration

Organization Name

QUALCOMM Incorporated

Inventor(s)

Mohamed Abouzied of La Jolla CA (US)

Chuan Wang of San Diego CA (US)

Anosh Davierwalla of San Diego CA (US)

Muhammad Hassan of San Diego CA (US)

Vinod Panikkath of San Diego CA (US)

Li Liu of San Diego CA (US)

Oscillator Feedthrough Calibration - A simplified explanation of the abstract

This abstract first appeared for US patent application 18060295 titled 'Oscillator Feedthrough Calibration

Simplified Explanation

The abstract describes an apparatus for oscillator feedthrough calibration, specifically a component arrangement that can be calibrated to address signal leakage from an oscillator coupled to a mixer circuit.

• The apparatus includes a mixer circuit with a first stage, a second stage, and tuning circuitry.
• The first stage consists of at least one transistor connected between a mixer input and output.
• The second stage comprises one or more transistors connected between the first stage transistor and the mixer output, as well as between a local oscillator signal input and the mixer output.
• The tuning circuitry involves at least one current source connected to the first stage transistor.

Potential Applications

This technology could be applied in radio frequency (RF) communication systems, radar systems, and other electronic devices requiring precise calibration to minimize signal leakage and interference.

Problems Solved

1. Minimizing signal leakage from an oscillator coupled to a mixer circuit. 2. Ensuring accurate and reliable signal processing in electronic devices.

Benefits

1. Improved signal quality and reliability in RF communication systems. 2. Enhanced performance and efficiency of radar systems. 3. Reduced interference and noise in electronic devices.

Potential Commercial Applications

Optimizing signal processing in wireless communication devices for improved performance and reliability.

Possible Prior Art

One possible prior art could be the use of calibration techniques in RF circuits to minimize signal leakage and interference. Additionally, previous methods of tuning mixer circuits in electronic devices may have similarities to the tuning circuitry described in this patent application.

How does this apparatus compare to existing calibration methods in terms of accuracy and efficiency?

The article does not provide a direct comparison between this apparatus and existing calibration methods, leaving room for further research and analysis to determine the advantages and limitations of this technology.

What are the potential challenges in implementing this technology in practical electronic devices?

The article does not address the potential challenges or limitations in implementing this technology in real-world applications, such as cost, complexity, or compatibility with existing systems. Further investigation is needed to assess the feasibility of integrating this apparatus into commercial electronic devices.

Original Abstract Submitted

An apparatus is disclosed for oscillator feedthrough calibration, such as a component arrangement that can be calibrated to account for signal leakage from an oscillator coupled to a mixer circuit. In example aspects, the apparatus includes a mixer circuit having a first stage, a second stage, and tuning circuitry. The first stage includes at least one transistor coupled between a mixer input and a mixer output. The second stage includes one or more transistors coupled between the at least one transistor of the first stage and the mixer output. The one or more transistors are also coupled between a local oscillator signal input and the mixer output. The tuning circuitry includes at least one current source coupled to the at least one transistor of the first stage.