1. Catalogs
  2. Cobham
  3. Coaxial Cable Assemblies

Coaxial Cable Assemblies

Coaxial Cable Assemblies
1 / 76 PagesView full catalog

Coaxial Cable Assemblies

Product catalog summary
Introduction
Cobham Antenna Systems specializes in coaxial cable assemblies, emphasizing reliability in mission-critical military and aerospace projects. Their products are known for high quality and durability, meeting stringent performance standards.
Specifications and Standards
Cobham's products comply with ISO 9001:2000 and AS 9100:RevB certifications, along with defense standards. They employ a 'Design for Reliability' approach, integrating reliability from design through production.
Customization and Security
Cobham offers customized solutions tailored to specific requirements, ensuring timely delivery. Their facilities maintain classified clearance for confidential projects, adhering to rigorous security standards.
Product Features
The cable assemblies cover a frequency range from DC to 50 GHz, suitable for applications like electronic warfare, airborne, ground, shipboard, missiles, space, and laboratory settings. Cobham designs both cables and connectors for optimal performance.
Testing and Quality Assurance
Cobham conducts extensive testing, including flexure endurance, abrasion resistance, and RF shielding effectiveness, to meet military specifications. Their Exeter facility can perform qualification testing at full rated power, high temperature, and high altitude.
Manufacturing Capabilities
With over 50 years of experience, Cobham produces more than 10,000 cable assemblies per month, designing and manufacturing its own bulk cables and connectors to ensure high quality.
Applications and Markets
Cobham serves military, high-performance commercial, and space markets, with a catalog organized by market applications like electronic warfare, space, laboratory, and commercial aviation.
Technical Data and Formulas
The document includes technical data such as VSWR to Return Loss conversions, frequency designations, and design formulas for characteristic impedance, velocity of propagation, and capacitance.
Ordering and Customization
The catalog provides a selection guide, application notes, and ordering instructions. Cobham offers custom-designed cables for specific customer requirements, leveraging an extensive library of unique designs.
Manufacturing and Testing Capabilities
Cobham's facility is equipped with computer-controlled network analyzers for measuring VSWR, insertion loss, stability, phase, and time delay up to 50 GHz, handling high-volume measurements.
In-House Mil Spec Testing
Cobham offers a comprehensive range of in-house Mil Spec testing capabilities, including abrasion, altitude, connector retention, corona, flexure, helium leak rate, humidity, impact shock, power handling, RF leakage, temperature cycle, thermal shock, and vibration.
Services Offered
Cobham provides applications engineering, prototype capability, mockup assistance, qualification testing, and program management, performed at a secure, ITAR-protected facility.
Cable Selection and Specifications
The document includes a detailed cable selection guide, listing various cable types with specifications such as outer diameter, jacket material, weight, frequency coverage, and application codes.
Packaging and Shipment
Cable assemblies are packaged to minimize damage during shipment, ensuring the minimum bend radius is not exceeded, with durable cartons for protection.
Conclusion
Cobham's capabilities in manufacturing, testing, and additional services make it a versatile provider for high-frequency cable assemblies, catering to both defense and non-defense sectors.
Connectors
A wide range of connector interface styles is available, ensuring low VSWR and excellent cable/connector retention characteristics, crucial for maintaining performance specifications.
Construction Details
The document outlines construction details for various cable types, designed for flexibility, low loss, and improved phase stability, suitable for airborne, military, and space applications.
Cable Insertion Loss and Power Handling
Tables and graphs provide data on maximum insertion loss and power handling across different frequencies for various cable models, critical for selecting appropriate cables.
Applications
Applications include airborne and lightweight systems, military ground and shipboard, missiles and precision-guided weapons, and space applications, each with specific design features.
Multipaction Prevention
In space applications, Cobham offers MTNC connectors designed to prevent multipaction by using precision-dimensioned interlocking cones of dielectric.
General Purpose Cables
These cables offer excellent performance with low insertion loss and VSWR over a broad frequency range, designed for less demanding environments.
Specifications and Product Overview
Cobham offers a wide range of coaxial products, including cables, connectors, and adapters, with detailed specifications for different types.
High Technology Shielding
EMI hardened and EMP shielded cable assemblies provide superior shielding without compromising performance, offering significant improvements over traditional cables.
Keyed Connectors
Keyed connectors prevent erroneous connections in systems with multiple identical connectors, crucial in applications where incorrect connections can cause damage.
Special Purpose Products
Special purpose products include NBC contamination survivable cable assemblies, phase and amplitude-matched cables, and SL multi-port interconnection systems, designed for harsh environments.
Radiating Cable Antenna Systems
These systems replace conventional antennas in applications requiring wide bandwidths, using special coaxial cable construction with radiating apertures.
Waveguide Interfaces and Self Lock Connectors
Waveguide interfaces offer improved insertion loss and VSWR by eliminating coax-to-coax interfaces, while self-lock connectors provide secure connections without safety wires.
Insertion Loss and VSWR Specifications
Detailed tables and formulas for calculating insertion loss and VSWR for cable assemblies are provided, considering factors like cable type, connector style, and frequency range.
Specifications and Standards
The document outlines specifications for antenna systems, focusing on insertion loss and VSWR, with dimensions and design details for connectors complying with military standards.
Connector Types and Dimensions
Various connectors are detailed, suitable for cables with different outer diameters, with specific dimensions for planning purposes.
Power Handling Capabilities
The document discusses power handling capabilities, emphasizing proper connector selection and design to prevent breakdowns, with a maximum temperature of 400°F for high-performance cables.
Heat Removal and Derating
Heat removal is primarily through conduction, convection, and radiation, with derating curves provided to adjust power handling capabilities based on altitude and ambient temperature.
Handling and Maintenance Recommendations
Recommendations include avoiding excessive bending, maintaining a large bend radius, and ensuring proper connector engagement, with special instructions to avoid extreme temperatures and mechanical stress.
Environmental Testing
Cable assemblies undergo rigorous environmental testing to qualify for demanding applications, following military standards.
Ordering Information
Instructions for ordering cable assemblies are provided, including part number formulation and connector codes, with various cable types and corresponding codes listed for easy reference.
Overview
The document serves as a comprehensive guide for selecting and ordering antenna systems and cable assemblies, providing essential information on specifications, ordering procedures, and performance criteria.
See more

Catalog excerpts

Coaxial Cable Assemblies-1

Cobham Antenna Systems Coaxial Cable Assemblies The most important thing we build is trust The most important thing we build is trust Cobham Antenna Systems 11 Continental Drive Exeter NH 03833 (603) 775-5200

 Open the catalog to page 1
Coaxial Cable Assemblies-2

Antenna Systems Engineering Reference Table of VSWR Conversions VSWR to Return Loss VSWR Return Loss, dB Previous Cobham Antenna Systems VSWR to Return Loss VSWR Return Loss, dB That's why we bring an uncompromising commitment to quality and performance to everything we build, including our coaxial cable assemblies. • Military and aerospace experience: Cobham has been providing electronics to the Department of Defense and NASA for decades, fulfilling the most stringent requirements for performance and durability under the most extreme conditions. Our cable assemblies have flown on most military...

 Open the catalog to page 2
Coaxial Cable Assemblies-3

The export of some of the parts contained in this catalog is controlled by the U.S. Department of State and requires prior license approval. Cobham has an on-going program of product improvement: specifications and designs are subject to change without notice. Product by Market Segment Insertion Loss and VSWR Specifications Connector Outline Dimensions Power Handling Recommendations for Cable Handling Typical Environmental Tests Cable Selection Guide 17-21 Airborne / Ground and Shipboard / Missiles General Purpose / Test Bulk OEM / Lightweight Assemblies Special Purpose Products 50-54 Application...

 Open the catalog to page 3
Coaxial Cable Assemblies-4

The extruder applies the primary moisture barrier made of various polymer materials

 Open the catalog to page 4
Coaxial Cable Assemblies-5

ANTENNA SYSTEMS Cobham Cable Assemblies product line is part of Cobham Antenna Systems Microwave Components business unit, located in Exeter, New Hampshire We are a completely self-contained operation. We design and manufacture bulk cable and connectors, then assemble and test the finished products prior to shipping (for custom lengths) or for stocking in inventory (for select lengths of certain cable assemblies.) Our Exeter facility has the unique ability to perform qualification testing of cable assemblies at full rated power, high temperature, and high altitude simultaneously. We have conducted...

 Open the catalog to page 5
Coaxial Cable Assemblies-6

Cobham Antenna Systems PRODUCTS Cable Assemblies DC to 50 GHz Electronic Warfare Airborne Ground & Shipboard Missiles Space Laboratory General Purpose Test Commercial Aviation Bulk OEM Lightweight Assemblies Special Applications 500 different cable designs 5000 different connector designs Cable assemblies developed and produced by Cobham cover broad frequency ranges from DC to 50 GHz, and are associated with operational ground-based, shipboard, airborne and space equipment. Many different cable constructions have been developed including reduced loss, scuff resistant, high power, multi-conductor,...

 Open the catalog to page 6
Coaxial Cable Assemblies-7

ANTENNA SYSTEMS Smaller and lighter than MIL-DTL-17 cables, our rugged antenna mast cable assemblies are capable of continuous flexing in severe tactical environments—hot or cold. Compared to corrugated copper air-dielectric cables, our low loss, low VSWR mast cables can handle more than five times the CW power at one-half the minimum bend radius. Reelable in lengths up to several thousand feet, they can be easily unwound, deployed and rewound hundreds of times without degrading performance. Our phase-stable instrument test cable assemblies were the first to break the 40 GHz barrier. These special...

 Open the catalog to page 7
Coaxial Cable Assemblies-8

The strander produces a uniform diameter stranded metal center conductor

 Open the catalog to page 8
Coaxial Cable Assemblies-9

ANTENNA SYSTEMS CABLE HERITAGE Custom SemiRigid Cable Assemblies Electronic Warfare Airborne Ground & Shipboard Missiles Space Laboratory General Purpose Test Commercial Aviation Bulk OEM Lightweight Assemblies Special Applications 500 different cable designs 5000 different connector designs Customers around the world select Cobham cables for their exacting defense or commercial applications. To the left is a partial list of platforms and programs: 767 777 DC-9 DC-10 MD-11 MD-80 Trident II Delta III Delta IV Atlas V Sea Launch

 Open the catalog to page 9
Coaxial Cable Assemblies-10

ANTENNA SYSTEMS Cobham has supplied cable products to a wide variety of markets for more than 50 years. This Catalog is organized around cable products for the specific market applications as shown below: Our products continue to have a clear focus on military and high performance commercial applications as well as a long standing commitment to the space market. We would be pleased to provide the details of our Heritage experience upon request. Electronic Warfare • Airborne – High Performance – Very Low Loss – Lightweight • Ground and Shipboard • Missiles and Precision Guided Weapons Space Laboratory...

 Open the catalog to page 10
Coaxial Cable Assemblies-11

The round braider produces round braid over first outer conductor for mechanical strength and additional shielding

 Open the catalog to page 11
Coaxial Cable Assemblies-12

ANTENNA SYSTEMS Cobham maintains a complete in-house cable assembly manufacturing capability and has been producing quality coaxial cable assemblies for more than 50 years. To ensure high product quality, we design and manufacture our own bulk cable and connector piece parts that make up these cable assemblies. Our production department is equipped to produce more than 10,000 cable assemblies per month. The manufacturing process is closely monitored to ensure consistency of yield and to maintain the high quality that is synonymous with Cobham cables. Over the years, we have developed a complete...

 Open the catalog to page 12
Coaxial Cable Assemblies-13

We utilize precision state-of-the-art equipment to test all cable assemblies for swept VSWR and insertion loss. We have the capability to perform complete qualification testing to MIL-T-81490, MIL-DTL-87104, and customer-defined specifications. Upon request, we can provide actual measured insertion loss and VSWR data with each cable assembly. When considering different levels of acceptance testing, please be aware that the following alternatives can minimize total cable assembly costs: 1. Certification of sample testing — recorded data retained at Cobham. 2. Testing for VSWR and insertion loss...

 Open the catalog to page 13
Coaxial Cable Assemblies-14

ANTENNA SYSTEMS In-house Mil Spec Testing Capability Abrasion Altitude Concentrated Load Connector Retention Connector Torque Corona Flexure Helium Leak Rate High Potential Humidity Immersion (Altitude) Impact Shock Power Handling Propagation Velocity RF Leakage Salt Fog Temperature Cycle Temperature/Altitude Thermal Shock Vapor Leakage Vibration We have multiple high frequency, high accuracy network analyzers that operate up to 50 GHz. These computer controlled systems are used in a variety of production tests, including: • VSWR • Insertion Loss and Loss Matching • Phase and Phase Matching •...

 Open the catalog to page 14

All Cobham catalogs and brochures

  1. Model ST60

    2  Pages

  2. 2 ATI GPS

    2  Pages

  3. VMD-T

    3  Pages

  4. M2TE

    9  Pages

  5. RT-5000

    2  Pages

*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.