Samsung Patents an Antenna Built Directly Into a Laptop's Keyboard Structure

By Patentlyze Team · Updated May 22, 2026

Samsung's latest patent tucks a wireless antenna directly into the keyboard area of a laptop — using the keyboard opening cutouts themselves as part of the antenna's physical boundary. It's a clever bit of space-saving engineering that could help future Galaxy Books get thinner without sacrificing signal.

How Samsung hides an antenna inside a keyboard deck

Imagine trying to squeeze a good Wi-Fi or cellular antenna into a laptop that's already packed with a battery, keyboard, and motherboard. Usually, antennas get pushed to the lid or the edges — but that limits design flexibility and can hurt signal quality depending on how you hold the device.

Samsung's patent describes a different approach: the antenna lives on the keyboard surface itself, physically defined by the metal housing, the plastic separators around the keys, and the antenna element together. The key openings — those little holes your keycaps poke through — actually help form the antenna's shape.

To connect it all together, the antenna's signal path runs through holes punched in the flexible keyboard circuit board and a support plate underneath, threading down to the main circuit board inside the laptop. It's a routing trick that avoids adding wires or connectors that would take up precious space.

How the antenna routes through keyboard circuit board holes

The patent describes a laptop housing with a top surface that contains the keyboard. That surface is made of a mix of conductive material (the metal chassis) and non-conductive portions (plastic inserts that electrically isolate sections of the frame). The keyboard key openings — the holes each keycap sits in — are deliberately shaped so that at least one of them is bounded on its sides by the metal chassis, the plastic isolators, and the antenna element itself.

This means the antenna isn't just sitting near the keyboard — it's structurally integrated into it. The key opening acts as part of the antenna geometry, which is a known technique in antenna design (using apertures and ground plane gaps to tune radiation patterns).

The electrical connection path is the clever part:

• The antenna sits on the top surface of the housing
• A flexible printed circuit board (FPCB) — the thin, bendable sheet that handles keyboard key inputs — has a hole punched through it
• A rigid support plate underneath the FPCB also has an aligned hole
• The antenna feed line passes through both holes to reach the main circuit board inside the chassis

This stacked, through-hole routing avoids the need for side-routed coaxial cables and keeps the signal path short and direct.

What this means for thinner, better-connected Samsung laptops

Laptop antenna placement is a genuine engineering headache. Manufacturers want metal chassis for rigidity and premium feel, but metal blocks radio signals — which is why you often see plastic strips or rubber inserts at the top of laptop lids, or near the hinge, marking where the antennas actually live. Putting an antenna in the keyboard deck opens up the lid for a cleaner all-metal look and frees up hinge real estate.

For Samsung's Galaxy Book line, which has been pushing thinner profiles, this kind of integration could matter. If the antenna can be routed straight down through existing PCB layers rather than around the chassis edge, that's fewer components, less routing complexity, and potentially a thinner overall build. It won't make or break a product on its own, but it's the kind of incremental structural efficiency that adds up in thin-and-light design.

Editorial commentary on a publicly published patent application. Not legal advice.