Coaxial Circulators up to 40 GHz for Signal Isolation and Directional Control
Coaxial circulators are essential passive RF components that route signal energy in a preferred direction while suppressing reflections. Operating across frequency bands up to 40 GHz, these ferrite-based devices protect sensitive amplifier stages from damaging return signals in modern communication systems, radar applications, and high-frequency test environments.
As three- or four-port devices, circulators enable effective transmit/receive isolation in terrestrial and satellite communication architectures, ensuring stable system performance and component longevity.
Technical Specifications
- Frequency Range: Up to 40 GHz
- Single Junction Circulators: Optimized for narrowband applications with compact form factors and minimal insertion loss
- Dual Junction Circulators: Enhanced isolation characteristics for demanding RF environments
- Broadband Circulators: Extended frequency coverage across octave or multi-octave bandwidths
- Drop-In Circulators: Up to 26.5 GHz with standard mounting interfaces for rapid system integration
- SMT Variants: Miniaturized surface mount designs up to 15 GHz for space-constrained PCB layouts
- Insertion Loss: Typically <0.5 dB across operating bands
- Isolation: 15–25 dB depending on configuration
- Connectors: SMA, N-type, and customer-specific interfaces
Applications
- 5G/6G & Telecommunications: Base station amplifier protection and infrastructure signal routing
- SATCOM: Uplink/downlink isolation and satellite ground terminal equipment
- Defense & Radar: Electronic warfare systems and radar transceiver chains
- Test & Measurement: Stable source-load interaction in laboratory setups
- Amplifier Protection: LNA and HPA stage isolation in RF transceivers
The availability of multiple topologies—from single-junction narrowband designs to broadband variants—enables system engineers to optimize performance against specific insertion loss, isolation, and frequency response requirements. Whether deployed in compact consumer 5G architectures or large-scale SATCOM ground infrastructure, these ferrite circulators deliver proven reliability and consistent electromagnetic behavior.
bq-microwave offers these coaxial circulators as a European distributor, combining AT Microwave manufacturing expertise with comprehensive technical support. For detailed performance data, connector specifications, and availability across your target frequency band, contact our technical team.