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Samsung patents circuit that keeps radio signals stable in varying heat

Samsung describes a voltage-controlled oscillator (VCO) that uses a specific current to adjust its internal components. This setup helps the circuit maintain a consistent signal frequency despite changes in temperature or manufacturing differences.

Why it mattersThis is a routine improvement to chip design that helps ensure stable wireless communication in devices like phones and routers.

In the filing’s own words

An Inductor-Capacitor (LC)-Voltage Controlled Oscillator (VCO) includes a current generation circuit that generates a Proportional To Absolute Temperature (PTAT) current, a varactor bias voltage generation circuit that generates a varactor bias voltage based on the PTAT current and on both a process variation and a temperature variation, an LC tank including a varactor circuit that receives the varactor bias voltage to compensate the process variation and the temperature variation

What exactly they claim (claim 1)

1. An inductor-capacitor (LC)-voltage controlled oscillator (VCO) comprising: a current generation circuit configured to generate a proportional to absolute temperature (PTAT) current; a varactor bias voltage generation circuit configured to generate a varactor bias voltage based on the PTAT current and on both a process condition and a temperature condition that are associated with the LC-VCO; and an LC tank comprising a varactor circuit configured to receive the varactor bias voltage to compensate for a process variation of the process condition and a temperature variation of the temperature condition.

Facts

Company
Samsung (Samsung Electronics Co., Ltd.)
Official title
INDUCTOR-CAPACITOR (LC)-VOLTAGE CONTROLLED OSCILLATOR (VCO) AND METHOD OF OPERATING THE SAME
Publication number
US20260291435A1
Application number
19556421
Filed
Mar 4, 2026
Published
Sep 24, 2026
Inventors
7
Claims
20

Classified under

H03B 5/04 Electricity & electronicsH03B 5/06 Electricity & electronicsH03B 5/1228 Electricity & electronicsH03B 2200/0038 Electricity & electronicsH03B 2200/0042 Electricity & electronicsH03B 2200/0058 Electricity & electronics
Read the full filing (official PDF) ↗ Open in the Patent Tracker

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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.