Optimizing Military Performance with Advanced RF Interconnects

By Matthew Radicchi

Originally published with Military Embedded Systems

Modern military platforms demand increasingly sophisticated RF interconnect solutions that can perform reliably in the most challenging environments while meeting strict size, weight, and power (SWaP) requirements. With over 70 years of experience in developing mission-critical RF solutions, Times Microwave Systems continues to push the boundaries of innovation to address these evolving needs.

A Heritage of Mission-Critical Excellence

Our journey in transmission technology traces back to World War II, when critical advances in communications, RADAR, and electronic warfare drove the development of flexible coaxial cables. During the Cold War era, Times Microwave Systems emerged as a pioneer when traditional RG system performance proved insufficient for increasingly demanding military applications. Our commitment to innovation gained particular momentum in the 1970s when we became an early adopter of low-density PTFE to replace polyethylene in high-performance coaxial cables—a direct response to the advancing needs of airborne electronic warfare systems requiring extremely lightweight, low-insertion-loss solutions.

This spirit of innovation continues today as we work hand-in-hand with military contractors and system integrators to develop solutions for next-generation platforms. Our engineering-driven approach combines deep technical expertise with an unparalleled commitment to understanding customer challenges, allowing us to develop precise, tailored solutions that address the unique needs of each application.

Market-Specific Solutions for Complex Applications

Advanced Airframe Applications

Modern military aircraft present some of the most demanding requirements for RF interconnect solutions. From advanced fighter jets like the F-35 to transport aircraft such as the C-17 and A-400M, each platform presents unique challenges that require specialized solutions.

Electronic warfare systems are one of the most critical applications in modern military aircraft. High-performance cable assemblies must deliver exceptional phase stability and low insertion loss for EW system effectiveness. Modern lightweight solutions have become foundational components in legacy programs like the F-15 and next-generation platforms.

Advanced radar applications demand exceptional phase stability across wide temperature ranges. Revolutionary developments in Fluoropolymer foam technology have ensured consistent radar accuracy across all flight conditions. This advancement has proven particularly valuable in advanced fighter aircraft where precise radar performance is essential for mission success.

The proliferation of communication systems in modern military aircraft has created new challenges in antenna interconnection. Contemporary platforms often require dozens of separate antenna systems, each demanding reliable RF connectivity. Advanced multiport solutions have emerged to reduce installation complexity while ensuring reliable performance in high-vibration environments.

Rotary Wing Applications

Helicopter platforms present particularly challenging vibration environments while requiring exceptional reliability. Our solutions support platforms from attack helicopters like the AH-64 Apache to heavy-lift platforms like the CH-53.

The extreme vibration conditions common in rotary wing applications require specialized connector solutions with advanced locking mechanisms to prevent de-mating under severe conditions.

Environmental sealing represents a critical design priority for rotary wing applications, where platforms must perform reliably in environments ranging from desert heat to maritime salt spray. Advanced sealing technologies protect RF systems against these harsh conditions, maintaining optimal performance across all operational scenarios.

Maintenance efficiency is critical for rotary wing platforms, where operational readiness can directly impact mission success. Quick-disconnect solutions and replaceable front-end connectors streamline routine maintenance procedures while maintaining the robust, reliable connections essential for mission-critical systems, significantly reducing aircraft downtime and maintenance complexity since the entire assembly doesn’t need to be replaced if damaged.

Innovative Outside-the-Box Solutions

As military systems become more sophisticated, the density of RF interconnections continues to increase while available space decreases. Our innovative multiport and mini-port solutions address these challenges head-on:

• Multiple coaxial contacts integrated into a single connector module for reduced installation complexity
• High-frequency performance up to 20 GHz for multiport connectors and 40 GHz for mini-multiport connectors
• Single-point mounting reduces installation time while ensuring proper alignment
• Integrated environmental sealing prevents moisture and contaminant ingress

Advanced Inside-the-Box Solutions

Internal RF routing presents unique challenges in modern military systems. InstaBend^® and PhaseTrack ^® 047 (PT-047) cable assemblies provide innovative solutions for these demanding applications.

Addressing common design constraints, InstaBend cable assemblies offer:

• Space-Saving Design: Achieve tight bend radii directly behind connectors, minimizing footprint
• Reliable Performance: Maintain excellent phase stability even with flexure
• Versatile Sizing: Available in 047 and 086 sizes
• Broad Connector Compatibility: Supports SMP, SMA, and 2.92mm connectors for diverse needs

PT-047 cable assemblies are engineered to deliver reliable performance and flexibility in demanding environments, offering:

• Superior Phase Stability: Industry-leading phase stability over temperature for consistent performance
• Enhanced Flexibility: PT-047 offers a flexible alternative to traditional 047 semi-rigid cables, ideal for space-constrained inside-the-box applications
• Pioneering Technology: Features first-to-market Fluoropolymer foam dielectric TF4®
• Reliable Protection: Vapor sealing ensures robust moisture and contamination protection across all altitude ranges

Complete RF Signal Path Expertise

Times Microwave Systems takes a holistic approach to RF interconnect solutions, considering the entire signal path from antenna to system components. Our engineering team conducts comprehensive system-level analysis to optimize performance across the entire RF chain. This approach includes detailed evaluation of signal paths, development of application-specific solutions, and expert guidance throughout the design, installation, and maintenance phases.

As military systems continue to evolve, Times Microwave Systems remains at the forefront of RF interconnect technology development. We’re actively developing high-temperature solutions for hypersonic applications, researching advanced materials for enhanced performance, and pushing the boundaries of miniaturization while maintaining superior RF characteristics. Our ongoing work in system integration focuses on supporting increasingly complex electronic warfare and communication systems, ensuring our solutions remain ahead of emerging requirements.

Partner with Times Microwave Systems

Our comprehensive understanding of military applications, combined with seven decades of engineering excellence, makes Times Microwave Systems your ideal partner for RF interconnect solutions. Whether you’re developing next-generation capabilities or upgrading legacy platforms, we provide the expertise and solutions to ensure your success.