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Smiths Interconnect
SpaceNXT™ Ku Series

SpaceNXT™ Ku Series

Product catalog summary

Overview: The SpaceNXT™ Ku Series WR75 High Power Waveguide Circulators and Loads are part of Smiths Interconnect's product line designed for critical space applications. These components offer reliable technology with a lower cost of ownership, aiding operators in overcoming market entry barriers.

Product Features:

Low and stable insertion loss: Circulators have 0.11 dB insertion loss with a minimum return loss of 20 dB over -25˚C to +125˚C. Loads have a minimum return loss of 20 dB over -25˚C to +135˚C.
Lightweight aluminum housing with chromate finish.
Tested for multipaction and corona effects.
Proven design with circulators tested to 350 Watts CW power and loads to 267 Watts average CW power.
Compliant with Electro Magnetic Compatibility (EMC) specifications to -80 dBi.
40 years of space heritage.

Applications: Suitable for satellite payloads, GEO, and MEO satellites.

Technical Specifications:

WR75 Circulator: Frequency range of 10.70 - 12.75 GHz, 20 dB isolation, 275 Watts CW power, and tested to 350 Watts CW. Operating temperature from -25˚C to +125˚C.
WR75 Termination (Load): Frequency range of 10.70 – 12.75 GHz, 21 dB return loss, 212 Watts CW power, and tested to 267 Watts CW. Operating temperature from -25˚C to +135˚C.

Qualification and Testing:

Random and sine vibration tests conducted across various frequencies and levels.
Mechanical shock tests with specific g-levels at different frequencies.
Multipactor and corona tests conducted under specified conditions.
Thermal vacuum testing (TVAC) performed at operational temperature extremes.

Graphical Data: The document includes graphs showing insertion loss and return loss versus time during thermal vacuum testing, indicating stable performance under specified conditions.

Catalog excerpts

bringing technology to life Ku-Band WR75 High Power Waveguide Circulators & Loads

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SpaceNXT ™ Ku Series Ku-Band WR75 High Power Waveguide Circulators & Loads Specifically designed and tested for Space applications. Features and Benefits Smiths Interconnect’s SpaceNXT™ product portfolio is specifically designed and tested for critical space applications. It provides customers with a combination of highly reliable technology and lower cost of ownership that enables operators to overcome potential market entry barriers while enjoying the benefits of an established technology partner. The SpaceNXT™ Ku-Band High Power family of passive waveguide components are part of Smiths Interconnect’s...

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bringing technology to life Ku Series Technical CharacteristicsWR75 Circulator Specifications Electrical For more information on this product please contact our Dundee, UK Office +44 1382 427 200 email: [email protected]

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Ku Series smiths interconnect bringing technology to life Technical Characteristics WR75 Circulator Qualification Corona Test For more information on this product please contact our Dundee, UK Office +44 1382 427 200 email: [email protected]

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Technical Characteristics Test Results Power in Thermal Vacuum Ku-Band WR75 Circulator Thermal Vacuum Testing (TVAC), 1 x 10-6 Torr Insertion Loss & Power vs Time 0.20 Elapsed Time (Hours) Insertion Loss Insertion Loss Specification (dB) Insertion Loss Versus Time, Power Applied J1 to J2, J3 terminated to a matched load Ku-Band WR75 Circulator Thermal Vacuum Testing (TVAC), 1 x 10-6 Torr Return Loss & Power Applied vs Time 25.00 Elapsed Time (Hours) Return Loss Return Loss Specification (dB) Return Loss J1 Versus Time, Power Applied J1 to J3, J2 5 For more information on this product please contact...

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bringing technology to life Ku Series 10.70 - 12.75 GHz 21 dB min 212 Watts CW (tested to +1 dB 267 Watts CW) -80 dBi 121g (4.30 ounce) Aluminum housing, clear chromate or low emissivity paint Technical Characteristics WR75 Termination (Load) Specifications Electrical Frequency Return Loss Power EMC Mass Material / Finish Environmental For more information on this product please contact our Dundee, UK Office +44 1382 427 200 email: [email protected]

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Technical Characteristics WR75 Termination (Load) Qualification Corona Test Pressure Five pressure cycles in the range 0.26-26 mbar Seeding Source Test Temperature Pulse Repetition Frequency Pulse Width Duty Cycle Max. RF Power (Peak) Thermal Analysis Low Power TVAC Test at Operational Min. Temperature, -25˚C Pressure in TVAC chamber to Low Power Baseplate Temperature High Power TVAC Test at Operational Max. Temperature, +135˚C Pressure in TVAC chamber to High Power Baseplate Temperature High Power Thermal Cycle (Non-Operating Temperature Limits) Conditions -45˚C to +150˚C 1 Hour at each temperature...

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UK Headquarters ■ London, UK + 44 20 7004 1600 [email protected] •- US Headquarters ■ Stuart, FL + 1 772 286 9300 [email protected] ■ Costa Mesa, CA + 1 714 371 1100 [email protected] ■ Milpitas, CA + 1 408 957 9607 x-1125 [email protected] ■ Stuart, FL +1 772 286 9300 [email protected] ■ Hudson, MA + 1 978 568 0451 [email protected] ■ Northampton, MA +1 413 582 9620 [email protected] ■ Tampa, FL + 1 813 901 7200 [email protected] ■ Kansas City, KS +1 913 342 5544 [email protected]...

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