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RF Adapter&Cable Assembly High-Frequency Test RF Adapter

High Frequency Test RF Adapter SMA Female 18GHz SMA-KKG

High Frequency Test RF Adapter SMA Female 18GHz SMA-KKG

This SMA series RF coaxial adapter is designed as a precision female-to-female interconnection device serving as an essential High Frequency Test RF Adapter for laboratory, production, and field test environments.

Featuring a compact barrel form factor with a robust stainless steel body, beryllium copper center contacts, and PTFE dielectric insulation, it delivers outstanding electrical repeatability and mechanical durability across the full DC to 18 GHz frequency range.

The 50-ohm characteristic impedance and VSWR of 1.15 or less ensure minimal signal reflection, making it ideal for vector network analyzer calibration, spectrum analysis, and high-speed digital testing applications.

  • Part Number :

    SMA-KKG
  • Product Category :

    rf adapter & cable assembly

Product Overview

The SMA-KKG is a straight female-to-female coaxial adapter engineered for precision RF and microwave interconnection. As an 18GHz SMA Female to Female High Frequency Test RF Adapter, it enables seamless inline coupling of two SMA male-terminated cables or devices.

The adapter body is machined from high-grade stainless steel for superior corrosion resistance and mechanical stability, while the inner conductor is crafted from beryllium copper with gold-plated contact surfaces to minimize insertion loss.

PTFE dielectric supports consistent 50-ohm impedance from DC to 18 GHz, and the durable construction withstands over 500 mating cycles in repeated test bench use.

 

Product Specifications / Attributes

The SMA-KKG excels as a 50 Ohm DC to 18GHz Precision High Frequency Test RF Adapter delivering consistent performance across the parameters below:

Characteristic Impedance

50 Ω

Frequency Range

DC ~ 18 GHz

VSWR (Voltage Standing Wave Ratio)

≤ 1.15

Dielectric Withstanding Voltage

1000 V (RMS, at sea level)

Insulation Resistance

≥ 5000 MΩ

Body Material

Stainless Steel

Inner Conductor Material

Beryllium Copper (Gold-Plated Contacts)

Dielectric Material

PTFE (Polytetrafluoroethylene)

Connector Interface

SMA Female to SMA Female (Inline Barrel)

Durability (Mating Cycles)

≥ 500 cycles

Operating Temperature Range

-55°C to +165°C

RoHS Compliance

Yes

 

Features&Benefits

Engineered as a premium Stainless Steel Beryllium Copper High Frequency Test RF Adapter, the SMA-KKG offers the following key features:

  • Precision 50-Ohm Matching: Maintains consistent characteristic impedance across the full DC–18 GHz band for accurate S-parameter measurements.
  • Low VSWR Performance: VSWR of 1.15 (max) minimizes signal reflection, ensuring reliable results in metrology and calibration applications.
  • Stainless Steel Body: Provides excellent corrosion resistance, mechanical rigidity, and long-term durability in both lab and field environments.
  • Gold-Plated Beryllium Copper Contacts: Deliver low contact resistance, high conductivity, and outstanding wear resistance over extended mating cycles.
  • PTFE Dielectric: Offers low dielectric loss and stable electrical properties across a wide temperature range from -55°C to +165°C.
  • Inline Female-to-Female Configuration: Simplifies test setups by directly coupling two SMA-male cables or adapters without extra cable assemblies.
  • Compact Barrel Form Factor: Space-efficient design ideal for dense instrument panels, test fixtures, and benchtop RF measurement stations.
  • RoHS Compliant: Manufactured under lead-free processes meeting international environmental standards.

 

Packing Details

If you need detailed information about our packaging specifications and requirements, please feel free to contact us directly. We will be happy to provide you with the details.

 

Applications

  • The SMA-KKG is suited for a wide range of RF and microwave applications including:
  • laboratory vector network analyzer (VNA) calibration and test setups;
  • production-line RF module testing;
  • antenna and filter characterization;
  • telecommunications base station maintenance;
  • satellite communication subsystem interconnects;
  • and high-speed digital interface development boards operating up to 18 GHz.
  • Its female-to-female inline design eliminates the need for additional cable assemblies when connecting two SMA-male devices directly.

 

Frequently Asked Questions (FAQ) 

  • Q: What is the maximum operating frequency of the SMA-KKG High Frequency Test RF Adapter?
    A: The SMA-KKG supports operation from DC to 18 GHz, making it suitable for a wide range of RF and microwave test applications including vector network analyzer calibration, antenna characterization, and high-speed signal integrity testing.
  • Q: What materials are used in the SMA-KKG adapter and how do they contribute to its performance?
    A: The adapter body is constructed from stainless steel for mechanical strength and corrosion resistance. The center conductor uses gold-plated beryllium copper for low contact resistance and excellent conductivity. The dielectric insulator is PTFE, chosen for its low loss tangent and stable electrical properties across a broad temperature and frequency range.
  • Q: Is the SMA-KKG suitable for repeated use in production test environments?
    A: Yes. The SMA-KKG is designed with heavy-duty stainless steel construction and wear-resistant gold-plated contacts, supporting over 500 mating cycles. Its low VSWR of 1.15 (max) and stable 50-ohm impedance ensure consistent measurement accuracy even after prolonged use in production line and laboratory test fixtures.

 

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