Broadband Coaxial Circulator

Product Introduction

Broadband Coaxial Circulator is engineered to address the demand for efficient, low-loss, and high-isolation signal direction control in broadband coaxial transmission scenarios. Unlike narrowband circulators that only work within a limited frequency range, this product adopts advanced ferrite material technology and optimized coaxial cavity design, achieving ultra-wide frequency coverage while maintaining excellent electrical performance. It typically supports 3-port or 4-port configurations, with frequency ranges covering DC to 40GHz and power handling capabilities from 0.5W to 500W，meeting the needs of both low-signal RF communication and high-power microwave applications. The device is available in three main form factors: inline coaxial type, bench-top type, and surface-mount type, adapting to diverse installation and application scenarios.

Product Specifications

Product Benefits

• Ultra-wide frequency coverage: Covers DC to 40GHz, eliminating the need to replace devices when switching between different frequency bands in broadband applications.
• Low insertion loss & high isolation: Minimizes signal attenuation during transmission and suppresses reverse signal leakage, ensuring high-fidelity signal transmission and system stability.
• Broad power adaptability: Supports power handling from 0.5W to 500W, suitable for both low-signal communication and high-power scenarios.
• Strong environmental robustness: Industrial/aerospace-grade models feature high-temperature resistance, anti-vibration, and moisture-proof designs, maintaining performance in harsh outdoor, industrial, or aerospace environments.
• Easy system integration: Compatible with standard coaxial interfaces and multiple form factors, enabling quick integration into existing coaxial circuits without complex modifications.
• Long service life: Adopts high-quality ferrite cores and gold-plated contact pins, reducing wear and signal degradation caused by oxidation or corrosion, ensuring stable operation for over 10,000 hours.

Technical Features

• Advanced ferrite material design: Uses low-loss, high-saturation magnetic flux density ferrite cores, combined with precise magnetic field calibration, to achieve wide bandwidth and stable electrical performance across the entire frequency range.
• Optimized coaxial cavity structure: The cavity is precision-machined from oxygen-free copper (OFC) to minimize conductor loss and impedance mismatch, ensuring low insertion loss and high return loss.
• High-power heat dissipation technology: High-power models integrate copper heat sinks or ceramic heat-conducting layers, effectively dissipating heat generated by high-power signals and preventing performance degradation due to overheating.
• Magnetic field stability control: Built-in permanent magnet assemblies with temperature compensation materials, maintaining a stable magnetic field under temperature fluctuations and ensuring consistent isolation and insertion loss.
• EMI shielding design: The outer shell adopts double-layer metal shielding, reducing external electromagnetic interference and preventing internal signal leakage, suitable for high-noise environments.
• RoHS-compliant manufacturing: Uses lead-free solders and environmentally friendly materials, meeting international environmental standards and adapting to global market requirements.

Product Applications

• 5G communication systems: Used in base station RF front-ends to isolate transmit (Tx) and receive (Rx) signals in coaxial lines, preventing Tx signal leakage from interfering with Rx sensitivity and ensuring stable signal transmission.
• Radar and satellite systems: Applied in radar transmit-receive modules and satellite ground stations to route high-power microwave signals unidirectionally, avoiding damage to sensitive receive components caused by reverse signals.
• Test & measurement setups: Integrated into RF test benches to separate test signals and reflected signals in coaxial test lines, improving the accuracy of power measurement, frequency response, and impedance testing.
• Industrial RF equipment: Used in microwave heating systems, RF plasma generators, and industrial IoT devices to control signal direction, reducing interference between multiple coaxial modules and ensuring equipment reliability.
• Medical RF devices: Applied in RF ablation machines and medical imaging equipment to isolate high-power therapeutic signals from low-power monitoring signals, preventing signal crosstalk and ensuring treatment safety.
• Broadcast and cable TV systems: Used in 75Ω coaxial cable networks to separate upstream and downstream signals, avoiding mutual interference and improving signal quality for TV transmission and internet access.

OEM

We provide professional OEM services for Broadband Coaxial Circulator to meet the personalized needs of different industries and customers:

• Parameter customization: Tailor frequency range, power handling, and impedance according to customer application scenarios.
• Interface & form factor customization: Design non-standard coaxial interfaces or special form factors; optimize size for space-constrained environments.
• Performance optimization: Adjust isolation, insertion loss, or temperature stability for special scenarios.
• Branding & packaging customization: Print customer logos on the shell, customize product labels with specific parameters, and design branded packaging and user manuals to align with the customer's brand image.
• Technical collaboration & support: Provide pre-sales electromagnetic simulation for system integration, post-sales on-site installation guidance, and performance testing training to ensure customers fully utilize the customized Broadband Coaxial Circulator.

FAQ

Q: What is the difference between Broadband Coaxial Circulator and a coaxial isolator?

A: A coaxial isolator is a 2-port device that only allows signal transmission in one direction and absorbs reverse signals. In contrast, Broadband Coaxial Circulator is a 3-port or 4-port device that routes signals in a cyclic direction and provides isolation between non-adjacent ports. The circulator offers more flexible signal routing for multi-port systems, while the isolator is simpler and more cost-effective for 2-port isolation scenarios.

Q: Can Broadband Coaxial Circulator be used in high-humidity environments?

A: Yes. Our industrial-grade Broadband Coaxial Circulator adopts IP65-rated waterproof and moisture-proof designs, which can work stably in environments with relative humidity up to 95%. For marine or coastal applications, we also provide customized anti-salt spray versions to resist corrosion from saltwater vapor.

Contact Us

If you need a high-isolation, low-loss Broadband Coaxial Circulator to solve signal routing, interference, or isolation challenges in your coaxial system, contact us now to get customized solutions tailored to your project requirements!

📧 Email: [sales@admicrowave.com]