The most important thing we build is trust

Cobham Microwave

Europe’s premier supplier of waveguide and microwave products for Space, Defence and Industrial applications

About usCobham are world leaders with a superb track record.

With end to end avionics solutions or a ‘Cobham Cockpit’, the

requirements of a variety of airborne applications can be met through

platform specific implementation of the following core competencies:

10,000+ employees

Across five continents

Customers and partners in over 100 countries.

At the heart of systems

Cobham protects lives and livelihoods with its differentiated technology

and know-how, operating with a deep insight to customer needs and

agility.

The Group offers an innovative range of technologies and services to

solve challenging problems across commercial, defence and security

markets, from deep space to the depths of the ocean. It has market

leading positions in air-to-air refuelling; aviation services; audio, video

and data communications, including satellite communications; defence

electronics; life support and mission equipment.

Timeline Early yearsFirst specialised in rigid waveguides for ship radar systems.

Mid-1980s First space payload waveguides manufactured for Matra Espace.

Late 1980s Introduction of flexible twistable waveguides.

Early 1990s On-site customer support services for survey, planning and installation of land and naval waveguide systems introduced.

For 75 years we have been at the heart of sophisticated military and civil systems – keeping people safe, improving communications, and enhancing land, sea, air and space capability.

Cobham Microwave (Credowan Ltd.), was formed in 1947 and is now part of the Aerospace and

Communications Strategic Business Unit of Cobham Plc.

Our areas of capabilities are: waveguides, waveguide sub-systems and components such as:

Waveguide adaptors and transitions

High power loads

Microsorb: RF absorbent materials

Engineering services for outsource of

design effort

Space waveguide assemblies: silver-plating

capability and a class 10,000 clean room

Waveguide assemblies: rigids, bend,

seamless and flex/twist, hybrids

Couplers

Tuners

Horn antennas and feeds

Multi-channel rotary joints

Anechoic chambers and hoods

Magic Tees and Dividers/Combiners

Coaxial and fibre-optic channels

Filters and Multiplexers

1998 Top European expert in radar absorbent material joined Credowan’s design team and Load Division created.

1999 Credowan joined internationally recognised microwave technology group Chelton, part of high-technology aerospace company Cobham plc.

1999 Credowan made strategic acquisition of a rotary joint business from UK company EEV.

2008 All Cobham-owned business worldwide began to adopt new Cobham brand as part of Cobham’s programme to deliver unified brand identity to the global market.

The most important thing Cobham builds is trust.

We have four divisions: Avionics and

Surveillance, Defence Systems, Mission

Systems and Aviation Services.

Quality > capability > trustOur two waveguide business units in Europe

have developed a comprehensive range

of waveguide products and microwave

capabilities through many years of expertise.

They are now exploiting the opportunities

offered by emerging markets with new

product ranges and the integration of new

technologies.

All the products detailed in this brochure are

manufactured at our UK factory in Chichester,

West Sussex.

World-class Trust. Talent. Technology.

High performance, wide capability Wide range of flange options WG00

(WR2300) to WG28 (WR08)

High-performance, low-loss silver-plating

option

In House Plating: silver, nickel, copper,

gold and tin

Widest range of bend tooling in Europe

Video-Microscope endoscopic inspection

X-Ray monitored joint quality

Full 3-axis measurement capability

Electrical test

Tensile Hardness

Material Composition

Environmental testing

Qualification to specifications with

Certificates of Conformance

Project Management

Survey and installation services

Reverse engineering of obsolete products

World-class waveguide assembliesCobham Microwave is a world-class designer and manufacturer of high-quality rigid and flexible

waveguide assemblies and other passive waveguide components covering UHF to Millimetric

frequencies.

Our wide engineering and manufacturing expertise allows us to offer:

individual components to customers’ specifications

packaged and tested sub-system level assemblies ready for higher-level integration

waveguide products silver-plated using our in-house facility

optimised electrical performance across your chosen frequency band

Our proven process, craftsmanship and attention to cleanliness give each waveguide

exceptional corrosion resistance to handle extreme environments.

Waveguide sizes available span from WR975 (WG4) to WG28 (WG23) in rectangular and

WRD200 to WRD180 in double ridge.

Also available are waveguides in circular, elliptical, square and over-moded or multimodal

aspect ratio options.

Choose the best solution for you

Rigid Waveguide

Rigid waveguide components are offered as

standard in custom-specific designs. Bending is

available for both ‘E’ and ‘H’ and twists in either

clockwise or anticlockwise orientation.

Available in a full range of materials such as

copper, brass, aluminium and stainless steel.

Flexible Waveguide

Flexible waveguides have a wide range of

uses are ideal for taking up tolerances caused

by misalignment and in areas subject to

temperature variation, shock and vibration.

Manufactured from copper alloy or a brass

core which can then be silver plated and

painted or silicon jacketed; they are available

in a wide range of sizes. Ask us for details!

Seamless construction provides flexible (non-

twist) functionality. It offers higher power

handling and better electrical performance

over standard flexible/twistable waveguide.

The seamless core design makes it inherently

pressure-tight and gives excellent PIM

performance, especially when used with our

range of PIM free flanges.

If a permanent twist or bend is required, we

can form flexible or twistable waveguide into

a specific shape during the manufacturing

process, reducing the stress on the waveguide.

Rigid/Flexible Hybrid Waveguide

Reduce cost and save valuable integration time

– with the growing trend of reducing available

space for waveguide runs, plus the need to

minimize flange joints, we have combined rigid

and flexible elements into one single assembly.

We have a wide range of flange options for all

of our rigid and flexible waveguide products.

Ask us for details!

Please contact our sales office for advice

on selecting the best solution for your

requirements.

Tel: +44 1243 670711

Email: microwave.uksales@cobham.com

Industrial Scientific and Medical Trust. Talent. Technology.

Cobham Microwave is in a unique position to

offer services and products for the increasingly

cost effective use of RF and Microwave

technology for use in Industrial processing

systems utilising the ISM frequency bands.

These processes use much less energy far

more efficiently than current standards

where the carbon footprint is under increased

scrutiny.

Such as:

Microwave heating

Industrial processing of materials

Pyrolysis of carbon based materials

Drying processes

Food processing and batch cooking

Pasteurisation

The larger waveguide sizes required for high

power distribution at lower frequencies

require a specialist approach not found with

“fabrication only” vendors. High power

and high vacuum components with an

associated surface finish, bends, twists,

transitions and couplers need to be designed

and engineered for optimum propagation and

low losses.

Scientific and Medical uses Our recent program with a well known UK

academic institution in partnership with an

expert recycling company has resulted in a

high speed pyrolysis plant which is now ready

for industrial scale production. The throughput

of raw material to the finished products is

extremely fast and was previously unheard of.

Cobham Microwave designed and developed

the Microwave Generator, waveguides and

control software to enable this project to

become a reality..

WG00: aluminium and stainless steel

fabrication

Software/control

Scientific, stainless steel components

Batch feed

Continuous feed

Test equipment

Ultra High vacuum high power

ISM BandsFrequency Band Bandwidth Centre Frequency Waveguide Capabilities

433.050 MHz / 434.790 MHz 1.84 MHz 433.920 MHz

902.000 MHz / 928.000 MHz 26 MHz 915.000 MHz

2.400 GHz / 2.500 GHz 100 MHz 2.450 GHz

5.725 GHz / 5.875 GHz 150 MHz 5.800 GHz

24.000 GHz / 24.25 GHz 250 MHz 24.125 GHz

Space Applications Trust. Talent. Technology.

Proven space excellence

Flight-Approved Waveguide and Waveguide components

Over 30 years of expertise in design and

manufacture, our high-precision custom

waveguide components excel in demanding

space applications.

We have an extensive portfolio of flight-

approved components from L-Band (1GHz) to

Ka-Band (40GHz).

Maximum value for customers

We use our flight waveguide heritage and

renowned multi-disciplined engineering and

manufacturing team for all elements of the

microwave transportation and distribution

network. .

Lightweight, robust and high-performing solution Our microwave design team use high

frequency structure simulator (HFSS) and

custom fast response mode matching analysis

software.

Commitment to quality

AS EN ISO9100 Rev C/JIS Q9100:2009

accreditation

Independently assessed operators

Final integration fitting services

Class 10,000 clean room

HFSS design facilities

Video-microscope endoscopic inspection

X-Ray monitored joint quality

Full 3-axis dimensional measurement

capability

Space Applications Trust. Talent. Technology.

Products qualified for Space applications

Lightweight Rigid Waveguide

Seamless Flexible Waveguide

Couplers

Low-pass filters

PIM free flanges

Integral brackets

Waveguide windows

Transitions and tapers

Slotted array antennas

Input and output multiplexers

Magic Tee/3dB hybrid dividers/combiners

Loads (separate components or integrated)

More than 50,000 space-approved waveguides manufactured over 30 years, for flight and terrestrial applications – clients trust Cobham Microwave’s space heritage.

Processes qualified for space applications

Chromate conversion

Dip brazing

Flame brazing

Induction brazing

Silver plating

Silver soft soldering

Painting (Aeroglaze Z306)

Thin wall (0.4mm) waveguide tuning

Right at the forefront

Cobham Microwave is recognised as the

industry leader and is at the forefront of

flight-approved waveguide manufacturing

for current and future generations of satellite

platforms, due to:

Our commitment to quality

Our continuous investment in innovative

manufacturing technologies

Our committed and skilled workforce

Our investment in training and development

Our focus on best practises and processes

Our advanced designs for manufacture

Our heritage and experience

Payload Heritage

ALTILKA AM 4 AMAZONAS 2

AMOS 3 AM3 AM4

AMC 23 ANIK F1 AM33

AMAZONAS 1 AMOS 2 ANIK F1R

ANIK F3 ARABSAT4B ASTRA 1K

ASTRA 3B EURASIASAT EXPRESS

GE2 - I GSAT 3 HISPASAT 1C

HORIZON 2 HOTBIRD 4 HOTBIRD 7

HOTBIRD 10 INSAT 4A INSTAR

INTELSAT 10-2 KOREASAT 1 MABUHAY

NILESAT 102 OSAT 2 SATELCOM

SICRAL 3 SKYNET 5 STELLSAT

TDF 2 THAICOM 5 TURKSAT 3A

ARABSAT 1B ARTEMIS ASTRA 1A

CHINASAT EUROPSTAR GALAXY

GE5-I HELLAS SAT HISPASAT 1D

HOTBIRD 2 HOTBIRD 5 HOTBIRD 8

HYLAS INSAT 4B INTELSAT 9

JWST KOREASAT 5 METOP

NIMIQ 2 PLANCK SESAT

SINOSAT SPOT STENTOR

TELECOM 1 TURKSAT W2A

ARABSAT 4A ASIASTAR ASTRA 1N

CIEL 2 EUTELSAT 2 GE1-I

GLOBALSTAR HISPASAT 1A HORIZON 1

HOTBIRD 3 HOTBIRD 6 HOTBIRD 9

INMARSAT INSAT 4C INTELSAT 10-1

KASAT KTV NILESAT 101

NIMIQ 4 ROSETTA SICRAL 1B

SKYNET 4 STARONE SYRACUSE

TELECOM 2 TURKSAT 2 W2M

W3A W4 W7

WORLDSTAR XM RADIO YAMAL 200

World-class Trust. Talent. Technology.

Waveguide components – an unparalleled pedigree

Cobham Microwave develops, delivers and supports advanced

technology waveguide products for space, land, sea and air.

Our products are sold with an unparalleled proven pedigree for quality

and performance – so commercial organisations and governments

around the world know they can rely on us.

We offer a comprehensive range of waveguide components covering

UHF to Millimetric frequencies.

Our components and sub-systems are integrated into a vast range

of applications including:

RADARs

Broadcast and communication satellites

Electronic countermeasures

ISM applications:

Microwave recycling and pyrolysis technologies

Scientific and Industrial

Industrial heating and processing

Linear particle accelerators (Linacs)

Medical diagnostic and treatment equipment

Global standing

Cobham Microwave is globally competitive

with a product quality our competitors cannot

match. We are very proud that this success is

a result of our:

Our commitment to quality

Our continuous investment in innovative

manufacturing technologies

Our committed and skilled workforce

Our investment in training and development

Our focus on best practises and processes

Our advanced designs for manufacture

Attention to detail

Transitions

Waveguide to Coaxial

Waveguide to Waveguide

Coaxial Transitions are available in all

waveguide sizes and can be supplied as either

end-launch or right-angle coaxial connections.

Coaxial connection options: N-type, SMA,

2.9mm, TNC, 7/16” or 2.4mm.

Waveguide to waveguide transitions are

available for size reduction or shape changing;

as stepped or in taper form.

We offer these in full band or electrically

optimised for your specific frequency

requirements.

Pressure-tight, hermetically-sealed, ultra high

vacuum and high power options are also

available.

Couplers

Loop Coupler

Broadwall Coupler

Sidewall Coupler

Cross Coupler

Cobham Microwave offers a complete range

of couplers from compact Loop couplers.

Available as multiple port devices with a range

of coupling values.

Power Dividers/Combiners

Cobham Microwave offers a wide range of

power dividers/combiners, using a variety of RF

technologies including the magic tee.

Filters

All our filters are made to specific

requirements. We have a wealth of experience

in the design and manufacture of a wide range

of high-performance absorptive and reflective

filters or multiplexers in waveguide or coaxial

standard interfaces

Tuners

Our series of waveguide tuners have been

designed for precision impedance matching

in high power ISM applications. Unlike many

other designs currently on the market, we have

integrated a reactive choke feature to each

tuning rod, making these tuners ideal for use in

EMI-sensitive environments.

World-class Trust. Talent. Technology.

Loads

Our experience in the design and manufacture of high-performance

loads and our ability to accurately predict thermal conditions has led us

to develop a number of high power air-cooled and water-cooled high

power devices.

Loads – Air Cooled

We offer a vast range of air-cooled loads that range in power from a few

watts up to 10kW (mean) and up to 70MW (peak). Our experience in this

specialist area has allowed us to develop many new products including

our coil load that allows high powers to be terminated without the

need for liquid cooling. Many of our loads can be easily adapted for

forced air cooling.

Loads – Liquid cooled

These are available in two technologies.

Our Liquid Dielectric range offer excellent power-handling

capabilities up to 50kW (mean).

Our Jacketed range runs at a much lower temperature than a similar

rated air cooled load, is smaller and is ideal for terminating power up

to 10kW (mean).

These loads are also suitable for alternative coolants.

Loads – Inserts and absorber material

The proprietary materials used in these designs are generally based

upon silicon carbide, mica, epoxy resin or silicon rubber.

Your choice:

We have many existing designs for broadband and narrowband

applications.

We also offer custom designs that meet your specific frequency

requirements and space envelope.

Our mould tooling for our low-cost silicon rubber-based options

is generally very economical and the design can be adapted to

incorporate a number of fixing options.

Anechoic hoods and chambers

Cobham Microwave has considerable experience in designing and

fabricating custom absorber hoods, anechoic chambers and TEM cells.

Typical applications include: missile head testing, EW transmitter testing,

antenna characterization and MW telemetry link testing. We are able to

incorporate RX sampling ports, signal injection ports, mode stirrers and

safety interlocks.

Outstanding services and facilities

Dedicated workforce of 90 employees

in the UK

AS EN ISO9100 Rev C/JIS Q9100:2009

accreditation

ISO 9001: 2008

Microwave consultancy services

Survey and installation services

Integrated microwave assemblies

Thermal & mechanical design facilities

CoSHH compliant

EM design facilities

Environmental testing

Electrical Testing

Project management

Quality Management

Creo-Parametric (Pro-Engineer)

Design software

Engineering services – expertise and innovation

Our knowledge and staff have evolved with

our business to meet the expectations of our

customers.

Our engineering department has grown

to include a full team of design engineers

and CAD operators who have the talent, innovation and forward-thinking ability to

match our customers’ demands for improved

performance and new product lines.

Customers can use our team’s expertise to:

outsource the critical design stage

to their own specifications, interact with

these engineers and discuss any options and

improvements before the final designs are

completed and drawn.

The customer team and the Cobham team

form a coherent entity where everyone has

a stake in the successful outcome of each

project.

use our in-house capability for

on-site surveys and installations.

This has proved to be a great benefit for many

customers who do not have the time, in-house

expertise or resources to undertake these

time-consuming tasks themselves.

Fully insured and compliant with S|H|E|W

regulations and requirements.

Designed and produced by The Graphic Design House T: +44 (0)23 9233 4971 E: studio@tgdh.co.uk W: thegraphicdesignhouse.co.uk Photography by Peter Langdown.

Whilst every effort is made to ensure the accuracy of the information contained in this brochure, no responsibility can be accepted

for any errors or omissions.

All photography is copyright and is used with thanks to the respective owners.

CRW0413

The most important thing we build is trust

This paper contains 50% recycled fibres and is bleached in a totally chlorine free process. The virgin fibre content of this paper is elemental chlorine free and comes from managed forests.

Quality and confidence: contact us for more information

Credowan Ltd: Trading as Cobham Microwave Stocks Lane, Bracklesham Bay, Chichester, West Sussex, UK PO20 8NT

T: +44 1243 670711 E: microwave.uksales@cobham.com

@cobhammwuk

www.cobham.com/chichester

Waveguide Bends Twists Flexible Jacketed

Waveguide components Couplers Dividers/combiners Transitions

Waveguide size Eliptical, round, rectangular Coaxial Loads Filters and Multiplexers Tuners Calibration kits

Rotary Joints Naval and ground based RADAR Air traffic control High power coaxial Commercial sat com Airborne equipment

Engineering services On-site survey Installation services Design and development consultancy Project management