Introduction
In the ever-evolving landscape of radio frequency (RF) technology, connectors play a pivotal role in ensuring seamless and reliable signal transmission. Among the diverse range of RF connectors available, SMPS (SubMiniature Push-On Snap-On) connectors stand out as high-performance 50-ohm RF coaxial connectors with a remarkable frequency range of up to 100 GHz. These connectors are engineered to provide a compact and efficient solution for high-frequency applications where density is paramount. With a size that is 45% smaller than SMP connectors and 30% smaller than SMPM connectors, SMPS connectors are ideal for scenarios where space optimization is crucial.
One of the distinctive features of SMPS connectors is their blind-mate design, which allows them to be mated using a sliding or snapping action, eliminating the need for wrenches or other tools to establish a proper connection. This feature makes them highly versatile and convenient for a wide range of applications.
In this comprehensive guide, we will delve into the world of SMPS connectors, exploring their design, technical specifications, key features, applications across various industries, available configurations, and their significance in facilitating high-frequency RF connectivity.
Understanding SMPS Connectors
1. Design and Construction
SMPS connectors represent a compact and high-performance solution for RF connectivity. These connectors are engineered to meet the demands of high-frequency applications while maintaining a small footprint. The center contact or pin of an SMPS connector is typically constructed from materials like Beryllium copper or Gold, known for their electrical conductivity and reliability. The body of the SMPS connector can be composed of Beryllium Copper, Stainless Steel, or Aluminum, depending on the specific requirements of the application.
2. Technical Specifications
To gain a comprehensive understanding of SMPS connectors, it is essential to delve into their key technical specifications:
Frequency Range: Up to 100 GHz
Size: 45% smaller than SMP connectors, 30% smaller than SMPM connectors
Impedance: 50 ohms
Retention Force: Full Detent and Smooth Bore options available
Mating Cycles: Smooth Bore design offers a minimum of 500 mating cycles, Detent design capable of 100 mating cycles minimum
VSWR (Voltage Standing Wave Ratio): Typically 1.25:1 from DC to 65 GHz
Interface Height: Low interface height, ideal for board-to-board applications using a bullet design
These specifications underscore the impressive electrical performance, compact size, and versatility of SMPS connectors, making them a valuable asset in the realm of RF technology.
Key Features of SMPS Connectors
SMPS connectors offer a range of key features that set them apart as a compact and high-frequency RF connectivity solution:
1. Blind-Mate / Push-On Design
The blind-mate design of SMPS connectors enables them to be mated using a sliding or snapping action, eliminating the need for additional tools. This design simplifies the connector assembly process and ensures a secure and reliable connection.
2. Compact Size
SMPS connectors are notably compact, with a size that is 45% smaller than SMP connectors and 30% smaller than SMPM connectors. This compact form factor makes them an excellent choice for applications where space optimization is crucial.
3. High-Frequency Performance
With a remarkable frequency range of up to 100 GHz, SMPS connectors excel in high-frequency applications, ensuring the reliable transmission and reception of RF signals.
4. Full Detent and Smooth Bore Options
SMPS connectors provide flexibility with two different levels of retention force: Full Detent and Smooth Bore options. Users can choose the option that best suits the specific requirements of their application.
5. Tolerance for Misalignment
SMPS connectors have the ability to tolerate small radial and axial misalignment, allowing for multiple engagement and disengagement cycles without degradation in electrical performance. This feature enhances their durability and usability.
Applications of SMPS Connectors
SMPS connectors find applications across a diverse range of industries, owing to their compact design, high-frequency capabilities, and blind-mate functionality. Some notable applications include:
1. Aerospace
In the aerospace industry, SMPS connectors are instrumental in establishing high-frequency RF connections within complex high-performance microwave modules and systems. Their compact design and reliable performance make them ideal for scenarios where weight is a primary concern.
2. Military
The military sector relies on SMPS connectors to ensure robust RF connectivity in various applications, including communication systems, radar systems, and electronic warfare equipment.
3. Board-to-Board Connectivity
SMPS connectors are well-suited for board-to-board applications, facilitating the connection of RF components in densely packed electronic systems and devices.
4. High-Density Multiport Connectors
These connectors are commonly used in high-density multiport connectors and blocks, where space optimization and high-frequency performance are critical requirements.
5. Test Applications
SMPS connectors are employed in test applications to connect RF test and measurement equipment, ensuring precise and reliable results in research, development, and quality control processes.
Available Configurations
SMPS connectors are available in a range of configurations to meet diverse application requirements. Some of the available configurations include:
Standard
Multi-port
VITA 67
Geometries: Straight, Right Angle
Termination Styles: Push-On, PCB, End Launch, Cable
Mounting Styles: PCB, Surface Mount, Edge Mount, Snap-In, Board, Bulkhead
These configurations provide users with options to choose the ideal SMPS connector for their specific application, whether it involves standard RF connectivity, multi-port configurations, or specialized geometries and termination styles.
Conclusion
SMPS connectors, with their compact design, high-frequency capabilities, blind-mate functionality, and tolerance for misalignment, have emerged as a valuable solution in the realm of RF technology. Their significance in facilitating RF connectivity in applications ranging from aerospace and military to board-to-board connections and high-density multiport connectors is a testament to their versatility and reliability.
As the demand for compact, high-frequency RF connectors continues to grow, SMPS connectors remain at the forefront, offering a solution that addresses the challenges of space optimization without compromising on performance. In an increasingly interconnected world where RF technology plays a pivotal role, SMPS connectors serve as a vital link in ensuring seamless and dependable signal transmission across a multitude of industries and applications.
