Xinliang (XL) Wang of pSemi on Advancing RF Connectivity for Next-Generation Wireless, Satellite, and Test Systems

Our latest UltraCMOS+ RF switches, including the PE42544 and PE42429, reinforce pSemi’s leadership by addressing the increasing demands for higher linearity, wider frequency coverage, and improved reliability in next-generation RF systems. Importantly, we are extending our reach beyond traditional wireless into test & measurement and aerospace/defense, where precision and repeatability are critical. These new products position pSemi as a versatile, high-performance RF solutions provider across multiple fast-growing segments.

Q. As wireless networks become more complex with the growth of 5G, satellite communications, and future network architectures, how is pSemi collaborating with OEMs and ecosystem partners to address emerging performance requirements?

As RF systems become more complex, success depends on deep collaboration across the ecosystem. At pSemi, we work closely with:

• Leading OEMs and system integrators
• RF front-end module providers
• Test & measurement equipment manufacturers

 Our engagement typically starts early in the design cycle, where we:

• Co-develop application-specific switching architectures
• Optimize for real-world system constraints (linearity, isolation, thermal performance)
• Provide simulation models and evaluation platforms to accelerate integration

1. Signal integrity, isolation, and linearity are becoming increasingly important for modern RF systems. What customer challenges were you aiming to solve with the PE42544 and PE42429, and what market opportunities do you see resulting from these innovations?

1. Linearity under high signal density

Modern systems carry dense, high-PAPR signals across wide bandwidths. Customers need switches that maintain:

Low distortion (IMD)

Stable performance across power levels

2. Isolation in compact, multi-band designs

As RF front ends integrate more bands and paths, signal leakage and coupling become major concerns. These products deliver:

High isolation across wide frequency ranges

Improved signal fidelity in complex routing environments

3. Signal integrity in test environments

In test & measurement, accuracy is everything. Our switches help ensure:

• Minimal insertion loss variation
• High repeatability and stability

 These innovations open opportunities in:

• 5G/6G infrastructure (including massive MIMO radios)
• Satellite and phased-array systems
• High-performance test platforms.

Q. pSemi’s UltraCMOS+ and HaRP™ technologies continue to play a key role in product development. How do technology partnerships and close engagement with customers influence the company's RF product roadmap?

UltraCMOS+ and HaRP™ technologies are foundational to our innovation strategy:

• UltraCMOS+ enables CMOS-level integration with RF performance traditionally associated with III-V technologies
• HaRP™ (High-performance RF) enhances linearity, harmonic performance, and power handling

 We partner with foundries, packaging providers, and EDA ecosystems to ensure our technologies scale efficiently. Ultimately, our roadmap is not built in isolation—it is co-developed with customers to meet real system-level needs.

Q. The test and measurement sector remains a critical enabler of semiconductor and communications innovation. How is pSemi working with equipment manufacturers and industry stakeholders to support next-generation testing requirements across wireless and AI-driven infrastructure?

The test and measurement sector is becoming increasingly critical, especially with:

• AI-driven system validation
• Wideband RF testing (mmWave and beyond)
• Complex modulation schemes

pSemi supports this ecosystem by delivering RF switches that enable:

• High signal fidelity across wide frequency ranges
• Fast switching with minimal transient effects
• Repeatable performance over time and temperature

Q. Looking ahead, what are pSemi’s strategic priorities for expanding its RF portfolio, strengthening industry collaborations, and supporting the future growth of wireless infrastructure and advanced connectivity ecosystems?

Looking ahead, pSemi is focused on three strategic priorities:

• Expanding the RF portfolio
• Broader frequency coverage (including mmWave and beyond)
• Higher levels of integration and functionality
• Continued leadership in high-linearity switching solutions

Strengthening ecosystem collaboration

• Deeper partnerships with OEMs, module vendors, and test companies
• Co-innovation for emerging applications like NTN, 6G, and AI infrastructure

 Enabling future connectivity. We are committed to supporting:

• 5G Advanced and 6G evolution
• Satellite and hybrid terrestrial networks