Defense Components
RF and microwave components for radar, electronic warfare and tactical communications.
bq-microwave supplies European defense customers—system integrators, research institutions and manufacturers of radar and EW systems—with RF, microwave and millimeter-wave components for all relevant bands up to 1700 GHz.
Our focus is on ITAR-free alternatives available in Europe without export restrictions. For radar applications (X-band, Ku-band, Ka-band, W-band) we supply highly reliable components such as circulators, isolators, power amplifiers and limiters. For electronic warfare (EW) we offer broadband components, fast switches and digitally controlled attenuators.
For tactical communications we supply high-linearity amplifiers, mixers and frequency-agile oscillators. Many products are available with mil-spec qualification.
Manufacturing Partners








Product Categories



Typical Applications
Naval Radar X- & Ku-Band
Rugged waveguide and coaxial components for naval radar, surface search, navigation and fire control systems in the 8–18 GHz range.
RCS Measurement W- & J-Band
High-frequency mmWave and sub-THz components for radar cross section measurements, stealth research and low-observable analysis.
Counter-UAS Ka-Band
Components for drone detection and defeat in Ka-band—imaging radar, tracking and jamming systems.
Electronic Warfare & SIGINT
Broadband components and WRD double-ridge waveguide for signals intelligence, spectrum surveillance and electronic countermeasures.
Defense Bands
| Application | Frequency | Standard / Notes |
|---|---|---|
| Naval Radar (X-Band) | 8 – 12 GHz | WR-90, surface search |
| Naval Radar (Ku-Band) | 12 – 18 GHz | WR-62, fire control |
| Counter-UAS (Ka-Band) | 26.5 – 40 GHz | WR-28 |
| RCS Measurement (W-Band) | 75 – 110 GHz | WR-10 |
| Sub-THz Imaging (J-Band) | 220 – 330 GHz | WR-3.4 |
Defense & Security
What frequencies are used for naval radar?+
Naval radar typically operates in X-band (8–12 GHz, WR-90) for surface search and navigation, and in Ku-band (12–18 GHz, WR-62) for fire control systems and high-resolution tracking. We supply rugged WR-90 and WR-62 components—filters, amplifiers, isolators and waveguide adapters.
What is RCS measurement and which frequencies are used?+
RCS (Radar Cross Section) measures the radar reflectivity of an object and is central to stealth research. Classic RCS measurements occur in X- to Ka-band; modern sub-THz research uses W-band (75–110 GHz, WR-10) and J-band (220–330 GHz, WR-3.4) for high-resolution imaging techniques.
Do you offer components for counter-UAS systems?+
Yes. For counter-UAS and drone detection we supply components in Ka-band (26.5–40 GHz, WR-28)—imaging radar modules, tracking antennas and fast switches for phased-array detection. For longer range we complement with X-band and Ku-band components.
More answers in our FAQ.
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bq-microwave – your specialist for RF and millimeter-wave components in Europe since 2011.