Editor's Choice


What is an RF connector?

28 March 2024 Editor's Choice Interconnection

To understand an RF connector, we first need to look at RF signals. An RF (radio frequency) signal refers to an alternating current (AC) signal characterised by its frequency falling within the radio frequency range. This typically includes frequencies from 3 kHz to 300 GHz. RF signals are widely used in various communication systems, such as radio broadcasting, television, wireless communication, and radar.

If you look across the broader electromagnetic spectrum, the selection of the 3 kHz to 300 GHz frequency range for RF signals is a result of a balance between propagation characteristics, data transmission requirements, regulatory allocations, and the compatibility of electronic components and devices. This range effectively covers a wide array of applications, making it a standard for RF communication and technology.

What is an RF connector?

An RF connector is simply a device used to connect or terminate coaxial cables, providing a pathway for RF signals between electronic devices. These connectors play a crucial role in ensuring a reliable and efficient transfer of RF signals.

RF connectors come in various types, each designed for specific applications and frequencies. They often have a coaxial structure, consisting of a central conductor, insulating material, and an outer conductor that serves as a shield. The choice of RF connector depends on factors such as frequency, power, and environmental conditions. They are widely used in telecommunications, broadcast equipment, aerospace, medical devices, and other industries where high-frequency signal transmission is essential.

Most RF connectors are manufactured using precision machining processes. The production typically involves the use of high-quality materials like brass, stainless steel, or aluminium. Automated machining tools, including CNC machines, cut and shape the connector components to exact specifications. These CNC screw machines are where the cylindrical stock spins, as a host of cutting tools work around the central axis.


The connectors consist of a central conductor, insulating material, and an outer conductor, often in the form of a threaded outer shell. Advanced techniques such as electroplating may be employed to enhance conductivity and protect against corrosion. Tight tolerances are maintained to ensure optimal performance, and impedance matching. The result is a reliable and durable RF connector ready to facilitate the seamless transmission of high-frequency signals in various electronic applications.

The RF connectors produced by Samtec show the company’s commitment to innovation and excellence. Samtec’s contributions are propelling the industry forward, introducing new cable constructions, and pushing signal speeds beyond 100 GHz.


Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

What’s the big deal with open pin fields?
Spectrum Concepts Interconnection
The concept behind the open pin field array is that it provides many contacts that are not limited to a single role.

Read more...
From the editor's desk: Is the current AI really what we want?
Technews Publishing Editor's Choice
The companies that develop LLMs need to change direction and concentrate on freeing up our time, not so that we can have more time to do the tasks we don’t want to do in the first place, but rather to allow us more time to do what we love.

Read more...
When it comes to long-term reliability of RF amplifier ICs, focus first on die junction temperature
Altron Arrow Editor's Choice Telecoms, Datacoms, Wireless, IoT
When considering the long-term reliability of integrated circuits, a common misconception is that high package or die thermal resistance is problematic. However, high or low thermal resistance, by itself, tells an incomplete story.

Read more...
ICs vs modules: Understanding the technical trade-offs for IoT applications
NuVision Electronics Editor's Choice DSP, Micros & Memory
As the IoT continues to transform industries, design decisions around wireless connectivity components become increasingly complex with engineers often facing the dilemma of choosing between ICs and wireless modules for their IoT applications.

Read more...
Why bis means business for LTE Cat 1 IoT connections
NuVision Electronics Editor's Choice Telecoms, Datacoms, Wireless, IoT
Tomaž Petaros, product manager IoT EMEA at Quectel Wireless Solutions explains why the market for Cat 1bis IoT connections is getting busy.

Read more...
Interview with Brian Aziz, vice president of global sales, Iridium
Editor's Choice
ridium is the leading satellite IoT player. Their network consists of 66 active low Earth orbit satellites covering every inch of the globe and are used for IoT and emergency services worldwide.

Read more...
Halo mid-board optical transceiver
Spectrum Concepts Opto-Electronics
The Samtec Halo mid-board transceiver has been designed for next-generation embedded applications that require 56 and 112 Gbps PAM4 performance in low profile and ruggedised form factors.

Read more...
Innovation in high-frequency cable design
Spectrum Concepts Telecoms, Datacoms, Wireless, IoT
[Sponsored] With frequencies approaching 110 GHz, a mismatch in impedance, an increase in insertion loss, or minute phase distortion can be the difference between success and failure.

Read more...
Accelerating AI adoption in MCU manufacturing
Editor's Choice AI & ML
To gain the value of ML functionality, designers of MCU-based devices have to adopt a new development method and accept a new type of probabilistic rather than deterministic output.

Read more...
Altron Arrow: Empowering innovation with STMicroelectronics AI processors
Altron Arrow Editor's Choice AI & ML
ST’s AI processors are not only smarter and faster, but also incredibly efficient, enabling a new wave of intelligent solutions across multiple industries.

Read more...