Narrow linewidth series microwave ferrite materials
Narrow linewidth series microwave ferrite materials
Narrow Linewidth Ferrites: Precision Engineered for High-Fidelity RF Systems
Why Linewidth Matters?
Ferromagnetic resonance (FMR) linewidth (ΔH) directly determines microwave device performance:
· ΔH <20 Oe: Enables ultra-low loss phase shifters (Insertion loss <0.1dB @ Ka-band)
· ΔH <15 Oe: Critical for quantum radar receivers (Reduction of noise coefficient 40%)
· ΔH <10 Oe: Essential in superconducting RF cavities (Q value >10⁶)
Our proprietary coprecipitation synthesis achieves ΔH=12-18 Oe with ±0.5 Oe batch consistency.
Six Technological Breakthroughs
1. Atomic-Level Doping
o Bi³⁺/La³⁺ Ion substitution control (Lattice distortion <0.02Å)
o Anisotropy field H<sub>a</sub> 3000-5000 Oe adjustale
2. Nano-Grain Structure
o Average grain size 0.3-0.8μm (1/5 of traditional craftsmanship)
o Density ≥95% (theoretical value)
3. Frequency Customization
o Working frequency band 2-110GHz (Support Sub-6G to THz)
o Dielectric constant ε=10-14 ±0.2
4. Extreme Stability
o Temperature coefficient TCμ <1×10⁻⁴/°C (-196°C to +200°C)
o Aging rate <0.1%/decade
5. Mass Production Capability
o Monthly production capacity 5,000 pcs (Φ100mm wafer)
o Cpk value ≥1.67 (Six Sigma Process)
6. High-Grade Reliability
o MIL-F-15733 Radiation Resistance Certification
o 100% HIP densification treatment
Performance Benchmarking
Parameter | Our NW Series | Industry Average | Improvement |
Linewidth (ΔH) | 14.5 Oe | 25-35 Oe | 45%↓ |
Insertion Loss | 0.08dB/cm | 0.25dB/cm | 68%↓ |
Power Handling | 1kW/cm² | 300W/cm² | 3.3×↑ |
Cost per GHz | $12 | $18 | 33%↓ |
Enabling Cutting-Edge Applications
1. Low Earth Orbit Satellite Payload
· Interstellar laser communication magneto-optical isolator (extinction ratio>40dB)
· Multi beamforming network (phase error<1 °)
2. Millimeter wave base station
· 64T64R Massive MIMO Phase Shifter (Delay<0.5ps)
· DPD Linearization Loop (Third Order Intermodulation<-70dBc)
3. Quantum computing
· Superconducting qubit reading resonant cavity
· Magnetic flux pump isolation component
4. Electronic countermeasure
· Core material of DRFM digital RF memory
· Cognitive interference machine reconfigurable filter
Typical technical indicators and foreign reference brands
TYPES | SATURATION MAGNETIZATION 4πMs (Gauss） ±5% | CURIE TEMPERATURE Tc ℃ | LINE WIDTH ΔH (Oe)
| SPIN WAVE LINE WIDTH ΔHk(Oe) ±20% | DIELECTRIC CONSTANT ε’ ±5% | DIELECTRIC LOSS TANGENT tanδ
|
19G3 | 1950 | 250 | ≤16 | 2 | 14.6 | ≤0.0002 |
18G32 | 1850 | 260 | ≤16 | 2 | 14.1 | ≤0.0002 |
18G20 | 1800 | 280 | ≤22 | 2 | 14.1 | ≤0.0002 |
Y1801 | 1650 | 250 | ≤16 | 2 | 14.1 | ≤0.0002 |
16G3 | 1600 | 240 | ≤16 | 2 | 14.0 | ≤0.0002 |
14G34 | 1400 | 220 | ≤16 | 2 | 13.8 | ≤0.0002 |
12G32 | 1200 | 210 | ≤16 | 2 | 13.6 | ≤0.0002 |
10G3 | 1000 | 200 | ≤16 | 2 | 13.4 | ≤0.0002 |
8G4 | 800 | 180 | ≤16 | 2 | 13.1 | ≤0.0002 |
14V | 1400 | 230 | ≤16 | 2 | 13.5 | ≤0.0002 |
12V | 1200 | 220 | ≤16 | 2 | 13.3 | ≤0.0002 |
FAQ Section:
Q: How to measure ferrite linewidth accurately?
A: We provide VNA-based ΔH test kits with ±0.2 Oe uncertainty. [Watch Measurement Demo]
Q: Can narrow ΔH ferrites reduce phase noise?
A: Yes! NW-315 grade lowers VCO phase noise by 6dBc/Hz @10kHz offset.