everything RF recently interviewed Ronald Wilting, the CEO Forefront RF. Ronald is a dynamic international senior executive with proven experience of transforming early-stage technology concepts into mass-market solutions. He has held senior positions with a number of respected organizations in the semiconductor sector including Qualcomm, SemiBlocks and Ericsson and over the course of his 25-year career he has consistently achieved outstanding results. He has exceptional finance raising capabilities across multiple company stages and demonstrable expertise in product development, team leadership and successfully launching new products.
Q. Can you tell us about Forefront RF? When was the company founded and what was the objective?
Ronald Wilting: Forefront was founded in 2020 as a result of a deep recognition of the limitations and inefficiencies inherent in current day RFFE systems. Pioneering research carried out by the company’s founder demonstrated the potential of self-interference cancellation technology to overcome the limitations of fixed-frequency filters and duplexers. Apart from taking up a greater physical footprint and being expensive to deploy these components are also limited in their adaptability to the rapidly evolving demands of software defined radio (SDR) systems.
With exponential growth in global data usage, and the proliferation of communication standards (3G, 4G, and 5G), there is an urgent need for a solution that can dynamically adapt to an array of RF frequency bands without adding complexity and without compromising efficiency or performance. This realization has given rise to the development of the company’s patented Foretune™ technology, which transforms the way RF signals are processed, paving the way for a new era in SDR by delivering space and supply chain efficiencies and future proofing advantages.
Q. What is the Unique tunable duplexer technology that Forefront RF has developed?
Ronald Wilting: Forefront RF’s tunable duplexer technology transforms RF signal management through dynamic cancellation, similar to how active noise cancellation works in headsets but over wide bandwidths at RF frequencies. Conventional noise-cancelling techniques in headsets involve generating anti-noise signals to cancel out unwanted sound waves. In contrast, Foretune™ uses passive RF cancellation circuits to dynamically cancel unwanted RF signals, removing the reliance on acoustic resonator duplexing filters (e.g. SAW and BAW devices), thus enabling the system to tune across a broad range of frequencies.
Our ForetuneTM technology cancels Tx blocking signals at the transmit frequency as well as Tx noise and distortion at Rx frequencies and combines this with tunable filtering to support a wide range of frequencies within a single integrated module, reducing component count and enabling more efficient, cost-effective, and compact software-defined radio (SDR) systems. Reducing the complexity of RFFE architectures delivers exceptional scalability and adaptability, making sure our offering is future-ready for continually evolving communication standards and next-generation mobile devices where efficiency, performance and reliability are critical
Q. What advantages does the patented Foretune™ technology offer RF engineers over existing / conventional RF front-end solutions?
Ronald Wilting: ForetuneTM solves the PCB space and complexity constraints that arise in RFFEs due to the proliferation of frequency bands in cellular systems. Traditional FDD architectures require multiple fixed-frequency components causing space and complexity challenges. These issues are particularly acute in smaller devices such as cellular enabled smartwatches where conventional front-end architectures are becoming increasingly impractical. Foretune™ technology mitigates the need for multiple discrete filters by replacing them with a single, compact module capable of operating across a wider range of frequency bands. This marks a significant shift in RF front-end design, moving from fixed hardware defined signal paths to an agile software-configurable architecture.
Q. What is the architecture of the RFFE module that you have developed which incorporates this technology?
Ronald Wilting: See diagram below.
Q. Is the Foretune™ technology limited by frequency? Up to what frequency can this be used? What are the target applications for this technology?
Ronald Wilting: Our initial target application is cellular user equipment, and ForetuneTM technology has already been proven to support all frequencies currently used for FDD in cellular systems. Our first product supports all frequencies in the low band range (<1 GHz). Later iterations will also support mid band and high band frequencies. Moreover, the technology has the potential to support much higher frequencies than currently available SAW and BAW filters, opening up the possibility for FDD operation at frequencies beyond those currently supported in cellular systems.
Q. Forefront RF has developed its first product - the FFM51010. Can you tell us more about this product? What is the status of this product - Sampling, Prototype, or Production? How has the market response been so far?
Ronald Wilting: We have currently developed engineering prototypes and are planning to conduct field trials with major players in our industry for validation purposes. The FFM51010, is on track for launch in 2026 to the cellular-enabled smartwatch market, supporting all frequencies in the low-band range. As the company evolves, we will expand our portfolio to include mid- and high-band solutions for this market as well as the higher volume smartphone market.
Q. Are you looking to develop more RFFE modules or license this technology to Cellular and IoT Device manufacturers?
Ronald Wilting: Forefront RF is a fabless semiconductor company, and our focus is to become a trusted component supplier to cellular user equipment manufacturers. As our technology evolves, we will expand our product range according to market demand.
Q. Can you tell us about the team at Forefront RF? Where is your headquarters located? You recently opened a new office in the Netherlands. What made you choose the Netherlands?
Ronald Wilting: Forefront RF is a diverse multi-disciplinary team, spanning various disciplines from RF system design, IC design, test & measurement, through to algorithm development and system integration. By fostering a cross-functional knowledge-sharing culture and by providing clear objectives, we ensure that people grow professionally while contributing to the company’s mission, which is to drive innovation in software defined radio and establish a sustainable component business. Our head office is in Cambridge, UK but we have recently opened a subsidiary office in the Netherlands. The country has a strong semiconductor industry and world-class talent pool. Our new premises will help us accelerate company growth, enhance customer support, and ensure we stay on track for the 2026 launch of our first-generation product, the FFM51010.
Q. Forefront RF secured £16M in funding in November 2024. How do you plan to allocate those resources, and are there any plans for additional fundraising?
Ronald Wilting: This injection of capital will enable Forefront RF to accelerate our mission to unlock the potential of software-defined radio (SDR) in cellular-enabled mobile devices, ultimately enhancing global connectivity and performance. We will use the funding to focus on three key areas:
- Product rollout: We will advance our integrated RF solution from engineering prototypes to real world products, targeting initial deployment in cellular-enabled wearables. This includes scaling our engineering team and investing in test infrastructure to support rigorous validation and refinement of our first-generation product.
- Market Entry: Resources will be directed toward securing early deals with key customers, building a network of strategic partnerships, and preparing for market launch.
- Operational Growth: To support our transition from startup to a mature fabless semiconductor organisation we are investing in infrastructure, team growth, and go-to-market capabilities. This includes our new office and lab space.
Q. What is Forefront RF’s three-year roadmap from a product development and business perspective?
Ronald Wilting: Our first product is a single antenna solution supporting 3GPP bands below 1 GHz, targeting cellular enabled wearables. Later products will support higher frequency cellular bands, as well as adding support for MIMO and carrier aggregation. Our product road map is as follows:
Market Application | 1St Generation | 2nd Generation | 3rd Generation |
Smartwatch/wearable | Low band | Low band/Mid band | All bands |
Smartphone | | Low bands | All bands |
In the short term we are focused on bringing our first RF module to commercial acceptance by 2026. This means finalizing the product’s performance, securing early design wins, strengthening existing partnerships and forging new ones.
Longer-term, we are aiming to establish Forefront RF as a key enabler in mobile device manufacture, scaling our technology to multiple applications and making adaptive RF the new standard.
