BeRex Granted Patent for RF Power Amplifier Output Matching Technology

BeRex, Inc. has been granted a patent for an RF power amplifier output matching technology that uses a step-up impedance transformer and a bonding wire to perform impedance matching and third-harmonic trapping, PRLog reported on November 2, 2026. The design reduces chip size and insertion loss while improving power efficiency, using only one inductor and one capacitor.

How the BeRex Bonding Wire Design Works

According to the report, the patent covers an output matching approach that treats the package bonding wire, traditionally regarded as a parasitic element, as an intentional circuit design element. By connecting the bonding wire in series with the shunt capacitor of a step-up impedance transformer, a single LC network simultaneously performs impedance matching and third-harmonic trapping.

Conventional designs require a separate LC resonator for the third-harmonic trap in addition to the matching network, demanding at least two inductors and two capacitors. Inductors occupy a large chip area and add parasitic resistance, which increases chip size and insertion loss, a factor the report describes as especially critical for compact IoT devices.

The proposed approach exploits a step-up impedance transformer in which a shunt capacitor connects from the transistor output node to ground. The package bonding wire is inserted between this shunt capacitor and the grounded exposed pad, forming a series LC branch that resonates at the third harmonic. The branch acts as part of the matching network at the fundamental frequency while shorting the third harmonic to ground, eliminating the lumped inductor otherwise required for the harmonic trap.

BeRex is a Korean RF and microwave semiconductor company founded in 2003 that designs and manufactures amplifiers, switches, attenuators, mixers, and IoT front-end modules for wireless infrastructure, 5G, IoT, defense, and automotive customers, according to company records. The company says the invention strengthens its position in RF power amplifier design for IoT applications.

BeRex's Patent Portfolio and IoT Products

According to akta.pro company records, BeRex holds 23 patents, comprising 13 registered or granted patents with 121 claims and 10 applications with 133 claims, for 254 claims in total. The records also show a November 2020 launch of radio frequency front-end modules for IoT applications covering Sub-GHz and 2.4GHz bands and supporting ZigBee, Thread, Sigfox, and LoRaWAN protocols. In January 2020, BeRex acquired OctoTech, an IoT front-end module supplier, to expand its IoT product portfolio and capabilities.

Earlier BeRex Patent and Product Moves

In May 2026, BeRex launched four ultra-high isolation RF switches, the BSW6540, BSW6543, BSW6550, and BSW6553, PRLog reported. The SP4T and SP5T switches operate on 2.7V to 5.5V, with isolation up to 59 dB and insertion loss from 0.73 to 1.06 dB, and are available for 5G BTS and DAS applications.

In June 2026, BeRex was granted a patent for an RF MMIC amplifier architecture that improves stability and linearity, PRLog reported, with the technology intended for wireless infrastructure applications such as base stations, satellite communications, radar, and other RF systems.

In July 2026, Anglia signed a pan-European franchise agreement with BeRex to distribute BeRex's products in the UK and EU countries, Electronics Weekly reported.

What Comes Next for BeRex

BeRex's own announcement of the patent is published on its website.