Microwave Ferrites and Ceramics, Grantes – HSMAG New Products !
In recent years due to success in the field of microwave electronics a lot of devices of different applications were produced. The prospects for future development of microwave systems with predetermined characteristics are mainly assigned by ferrite choise. However the choise of a material for a concrete application in microwave technique is a complicated task, as there are different requirements to different parts of microwave band Microwave Ferrites.
Among main characteristics of frrites esuitable for high frequencies are:
At the expense of high specific electrical resistivity (ρ >106 Ом·sm) ferrites are characterised by low dielectric losses at high frequencies tgδ=10-2÷10-4).
Dielectric permittivity ε’ (about 10-15)
Thermal stability in a wide temperature range
The high activity is being determined by the value of minimal bias which is essential for required nominal parameters providing.
Saturation magnetization, M s; 4πMs (400-5000 G)
Microwave Ferrites – The width of resonance curve 2ΔH is one of the main parameters characterising properties of ferrites applied in high-frequency band. The yttrium-iron monocrystals exhibit the minimal value 2ΔH =0.3-0.5 Oe. The width of resonanse curve of polycrystalline ferrites varies from 30…40 to 800-1000 Oe.
Microwave Ferrites – The technical performance of devices on the base of ferrites mainly depends on operating principle, application, frequency band and power level. This years HangSeng Magnetech Inc. is a new one of the China leaders in the field of high frequency materials development and manufacturing. ferrites are being produced on the base of pressed powder sintered at high temperatures. After thermal sintering the items can be smoothed and/or polished. Company produces items with different forms. Microwave Ferrites Dimensional allowance at mechanical treatment is ±0,025 mm. In spite of standard variants of performance it is possible to produce cores in accoradance with sizes and customers drawings.
Cobalt & Holmium Doped Garnets – Microwave Ferrite, Ferrites & Magnetic Materials, Garnet & Ferrite (Microwave) Garnets with enhanced power handling, with useful switching properties. Microwave ferrite magnets can generate constant magnetic field to control electric current so that microwave signal is amplified and information can be smoothly transmitted. Microwave magnets are widely used in magnetrons, cathode-ray tubes, […]
Narrow Linewidth Garnet Material Series – Microwave Ferrite, Narrow Linewidth Garnet Ferrites, Heat-resisting with narrow frequency band, Narrow Linewidth materials for above resonance applications Characteristics 1.Small ferromagnetic resonance linewidth 2.Good stability of temperature 3.Excellent surface density and well compactability Applications Coaxial, stip-line, microstrip circulator, isolator; Small type, wide frequency device. HSMAG manufactures ferrites on the base of compounds […]
General Garnet Material Series – Microwave Ferrite, Garnet & Ferrite Material (Microwave), Y-Gd (Yttrium-Gadolinium), Y-Gd-Al (Yttrium-Gadolinium-Aluminium), Y-Al (Yttrium-Aluminium), CVG (Сalcium-Vanadium), Y-Gd-Al Co or Dy(Yttrium-Gadolinium-Aluminium with Co and Dy additives) Characteristics 1. Low magnetic loss and dielectric loss 2. Good stability of temperature 3. Excellent surface density and well compactability Applications Coaxial,strip-line,microstrip circulator and isolator. General Garnets: Yttrium Cobalt Doped Calcium, Vanadium […]
Ni (Nickel Spinels) Ferrite Material Series – Microwave Ferrite and Ceramic, Nickel Ferrite Material Microwave Ferrite For Microstrip Isolators and Circulators Characteristics 1. Well temperature stability 2. Small ferromagnetic resonance linewidth 3. High spinwave widthline 4. Low dielectric loss Applications High power microwave circulators, isolators and duplexers. Ferrite materials on the base of Mg spinel are characterised by small […]
Ni (Nickel Spinels) Ferrite High Power Material Series – Microwave Ferrite and Ceramic, Nickel Ferrites Serie Microwave Ferrite Characteristics 1. Low magnetic and dielectric loss 2. Well temperature stability 3. Excellent surface density and compactness Applications Coaxial, microstrip, stripline isolators and circulator Nickel Spinels for below resonance applications requiring 4PiMs in the range 500 to 5000 Gauss, […]
Li (Lithium-Titanium-Zink) Ferrite Material Series – Microwave Ferrite and Ceramic, Microwave Ferrite For Strip-line Isolators and Circulators Characteristics 1. Low magnetic loss and dielectric loss 2. Good stability of temperature 3. High dielectric coefficient Applications Low power loss coaxial, power electronics, strip-line circulator and isolator. These materials are used when manufacturing thermallly stable components operating in […]