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Samsung patents RF switch design to handle stronger signals

Patent drawing
Patent drawing from the official filing.

Samsung has filed a patent for a radio frequency switch used in wireless devices. The design stacks multiple switches and adds specific capacitors and an inductor to manage high power levels without damaging the components.

Why it mattersThis improves the durability and performance of the internal components that handle wireless signals in phones and other connected devices.

In the filing’s own words

A single-pole single-throw (SPST) radio frequency (RF) switch is provided that includes one or more switches stacked in series, and a first capacitor disposed at an input side of the SPST RF switch, in series, before the one or more switches. The SPST RF switch also includes a second capacitor disposed, in parallel, across the one or more switches, and an inductor disposed at an output side of the SPST RF switch, in series, after the one or more switches.

What exactly they claim (claim 1)

1. A method for operating a radio frequency (RF) transceiver, the method comprising: receiving a first signal, via a single-pole single-throw (SPST) switch and reception front-end (FE) circuitry of the RF transceiver, wherein a series resonance is formed, between a first capacitor disposed at an input side of the SPST switch and an inductor disposed at an output side of the SPST switch; and transmitting a second signal, via transmission FE circuitry of the RF transceiver, wherein a voltage swing division is formed by the first capacitor and a second capacitor, the second capacitor being disposed, in parallel, across one or more switches included within the SPST switch.

Facts

Company
Samsung (Samsung Electronics Co., Ltd.)
Official title
BULK COMPLEMENTARY METAL-OXIDE SEMICONDUCTOR RADIO FREQUENCY SWITCH WITH ENHANCED RADIO FREQUENCY POWER HANDLING
Publication number
US20260332111A1
Application number
19678570
Filed
May 15, 2026
Published
Oct 22, 2026
Inventors
3
Claims
20

Classified under

H03F 3/245 Electricity & electronicsH03F 1/565 Electricity & electronicsH04B 1/44 Electricity & electronicsH10W 44/20 Electricity & electronicsH03F 2200/294 Electricity & electronicsH10W 44/234 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.