Product Description

Microwave Ferrite Technology, Inc.

Leading Manufacturer of Microwave Ferrite Materials in China

We specialize in microwave ferrite materials for the wireless industry, offering a range of products from high-volume garnets for wireless infrastructure to specialized materials for radar applications.

Application Range

Our materials are suited for devices operating:

• Above resonance: 100 MHz to 3 GHz

• Below resonance: 1 GHz to 40 GHz or more

• High-power applications and phase-shifting applications

Ferrites & Magnetic Materials

Our product line includes:

• Narrow Linewidth Ferrites

• Aluminum & Aluminum-Gadolinium Substituted Garnets

• Gadolinium Substituted Garnets

• Cobalt & Holmium Doped Garnets

• Magnesium Spinels

• Nickel Spinels

• Lithium Spinels

• YIG Film on GGG Substrate

• Permanent Magnets

Material Characteristics

High-frequency microwave ferrites exhibit:

1. High electrical resistivity (>10 6 cm) Low dielectric losses

2. Dielectric permittivity ( 1015)

3. Thermal stability across a wide temperature range

4. High activity, defined by minimal bias requirements

5. Saturation magnetization (4Ms = 4005000 Gs)

6. Narrow resonance linewidth (YIG monocrystals: 2H = 0.30.5 Oe; polycrystalline ferrites: 2H = 340 to 8001000 Oe)

Shapes & Configurations

We produce microwave ferrites and ceramics using pressed powder sintered at high temperatures, followed by smoothing and polishing. Standard shapes include:

Disk	Diameter: 1-100 mm
Plate	Max size: 50.8 x 50.8mm Thickness: 0.3-3 mm
Triangle	Max diameter: 12mm
Rod	Max length: 200 mm
Composition	Ferrites and dielectric materials

Material Base

We manufacture ferrites and ceramics based on garnet & spinel structures, including:

Garnet-Based Materials

Yttrium Iron Garnets (YIG) are widely used due to their:

• Narrow ferromagnetic resonance absorption linewidth

• Low magnetic losses & high magnetization

• High thermal stability

• Enhanced power stability via Cobalt & Rare-earth ion (Dy, Gd) doping

Spinel-Based Materials

• Magnesium Spinel Low coercive field strength, low dielectric losses (ideal for applications away from resonance)

• Nickel Spinel High magnetization range, excellent thermal stability (optimal for applications near resonance)

• Lithium Spinel Used in discrete phase shifters, featuring low coercive field strength & high saturation magnetization

Quality Control & Advantages

• Expert-led quality control team ensuring high standards

• Every ferrite magnet undergoes rigorous testing before sale

• Designed for isolators & circulators used in radio-communication systems

• Low H (deltaH) values minimize IMD in applications

By combining ferrites with dielectric materials, we miniaturize isolator/circulator designs, achieving optimal performance.

Surface Treatments

We offer a variety of protective coatings, including:

• Ni-Cu-Ni, Zn, Au, Ag, Sn, Ti, TiN, Cr

• Customized surface treatments tailored to client requirements

Maintenance Guidelines

To prevent rust and performance degradation, avoid exposure to:

1. Acid or Alkali Liquor

2. Organic Solvent

3. Electrolytes

4. Water or Oil

5. Hydrogen

6. Active gases (Chlorine, Ammonia, Oxynitride)

7. Radiation or Radioactive Rays

Applications

• Garnet & Spinel Ferrites Space/Defense/Telecommunications

• Ferrite-Dielectric Assembly Telecommunications

Microwave Ferrite Material Series

• Li Ferrite Low loss, high temperature stability, high dielectric coefficient

• Ni Ferrite Well temperature stability, small ferromagnetic resonance linewidth, high spin-wave width

• Ni High-Power Ferrite Low loss, excellent surface density & compactness

• General Garnet Ferrite Low losses, high temperature stability, superior compatibility

• Narrow Linewidth Garnet Small resonance linewidth, excellent thermal stability

• High Power & Low Temp-Co Garnet Withstands high peak power

• Microwave High-Q Ferrite Resonator Stable parameter control, no static wave oscillation

Contact Information

For further details, reach out to:

E-mail: magnet886@gmail.com

WhatsApp: +8615867408815

Website:www.microwaveferrite.com

Exceptional Frequency Adaptability

This microwave ferrite operates seamlessly across an extensive frequency spectrum from 0.3 to 300 GHz. Its broad compatibility renders it highly versatile for complex RF and microwave solutions, making it suitable for isolators, circulators, and phase shifters in both commercial and research environments.


Tailored to Diverse Specifications

Clients can request customized dimensions and specifications, allowing integration into existing or novel systems. Whether for prototyping or large-scale manufacturing, flexibility in composition and size ensures optimal performance regardless of the applications unique demands.