RF & microwave interconnect manufacturer

Precision RF interconnects for mission-critical defense systems.

We build RF coaxial cable, connectors and cable assemblies for radar, electronic warfare and military communication systems — engineered to hold their specification in extreme conditions.

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KL-830A coaxial cable cutaway showing center conductor, dielectric, inner and outer shield, and jacket

Fig. 1 — KL-830A, low-loss phase-stable coaxial cable, cutaway construction

AS9100D

Aerospace & defense QMS

MIL-DTL-17

Coaxial cable standard

100% sweep tested

VSWR, insertion loss, phase

Gyeonggi-do, South Korea

Manufacturing facility

Built for signals that can't fail.

Founded in 2013, Kaelen Microwave Technologies designs and manufactures RF, microwave and millimeter-wave interconnects — coaxial cable assemblies, connectors from standard bands to 110 GHz, precision attenuators and passive components — for defense, aerospace and telecommunications customers worldwide.

Every assembly follows a zero-defect policy: 100% sweep testing for VSWR, insertion loss and phase matching, with individual serialization and a test report per unit. Certified to ISO 9001:2015 and AS9100D, compliant with MIL-DTL-17, MIL-STD-202 and MIL-STD-810H.

678 Buk-ri, Namsa-eup, Cheoin-gu,
Yongin-si, Gyeonggi-do, Building 1
South Korea

Extreme environments

Qualified to MIL-STD-202 and MIL-STD-810H for temperature extremes, shock and vibration.

Phase & amplitude stability

Tight-tolerance construction for phased-array and coherent systems, where drift isn't an option.

Full traceability

Serialized units and an individual test report on every custom cable assembly we ship.

DC to 110 GHz

From SMA and N-Type through 1.0mm precision interconnects for mmWave systems.

Cable, connectors & assemblies

Four product lines, from flexible coaxial cable through millimeter-wave connectors. Full datasheet library →

Coaxial cable

Low-loss, phase-stable flexible coaxial cable for radar, airborne electronics and EW. A/AW/B/C/CA/E series, DC–110 GHz depending on size, with armored and custom-jacket variants.

50 cable + 8 assembly + 4 armor datasheets published →

Millimeter-wave & precision

1.0mm, 1.85mm, 2.4mm, 2.92mm & 3.5mm connectorized assemblies for satcom and airborne radar, up to 40 GHz. Full range of adapters and gender combinations available.

10 datasheets published →

Standard & high-power defense

SMA, N-Type, TNC and DIN 7/16 connectors for ground and naval systems, with IP68 and PIM-suppressed options, panel-mount and cable-mount versions.

5 datasheets published →

Compact & specialty

SMP, SMPM, QMA, BNC and MCX blind-mate connectors for dense, high-vibration modular enclosures.

Specification in progress

Precision attenuators

Fixed coaxial attenuators from 2 W to 200 W across SMA, N-Type, QMA, 4.3-10, 7/16 DIN and 2.92mm interfaces, including finned heatsink high-power units.

12 datasheets published →

Assemblies built to your spec, not pulled from a catalog

Send your frequency plan, connector interface and mechanical constraints. Our engineers respond directly with a construction proposal.

Spec review

Frequency, power, connector interface and environmental requirements.

Construction design

Cable selection, shielding and connector termination plan.

Prototype

First-article build for electrical and mechanical validation.

Qualification

MIL-STD-202 / 810H environmental and mechanical testing as required.

Production

Serialized production with a 100% sweep test and report per unit.

Send us your spec.

Whether it's a standard part or a fully custom assembly, our engineers respond directly with next steps.

Sales & engineering

sales@kaelenmicrowave.com

Manufacturing facility

678 Buk-ri, Namsa-eup, Cheoin-gu, Yongin-si, Gyeonggi-do, Building 1, South Korea

Web

kaelenmicrowave.com