Gapwaves Extends Its Multi-Layer Waveguide Technology into High-Power W-Band Applications

Swedish technology company Gapwaves is expanding its patented Multi-Layer Waveguide (MLW) technology beyond automotive radar to high-power amplifiers operating in the W-band frequency range of approximately 92–100 GHz. This development addresses significant challenges such as RF signal losses and heat dissipation at these high frequencies, crucial for radar, telecommunications, and satellite systems.

In collaboration with Gotmic, Gapwaves has introduced the PowerBlade module, a compact amplifier designed for airborne radar, UAV radar, tactical radar, and potential applications including radio links in base stations and future 6G systems. The new waveguide casing, crafted from precision-etched copper layers, integrates Gotmic's MMIC amplifiers directly, minimizing RF losses by reducing transitions and enhancing heat dissipation through the copper structure. This approach results in a thin and compact module capable of delivering high output power efficiently in space- and weight-constrained environments.

Gotmic's CEO Magnus Elovsson emphasized that the PowerBlade aims to provide customers with higher output power than single-chip solutions offer, without the bulky size and weight of conventional power combining techniques. The collaboration marks a significant new application for Gapwaves’ MLW technology, which has already achieved commercial success in automotive radar antennas, including those in Valeo's radar sensors and upcoming production with Desay SV.

The PowerBlade and the advanced waveguide casing were presented at the European Microwave Week in London from October 6-8, highlighting this innovative step in Swedish high-frequency technology.