99% 99.5% Alumina Ceramic flat plate plank
Reputation depends on quality, quality comes from Hard!
Alumina Ceramics:
Antennas have changed the way of communication all over the world. With antennas, we can now develop our mobile terminal; with antennas, we can communicate conveniently now. Otherwise, we are still in an era of communication. According to the nature of work can be divided into antennas and receiving antennas. Can be divided into communication antennas, broadcast antennas, TV antennas, radar antennas, etc. According to the directivity, it can be divided into omnidirectional antenna and directional antenna. According to the working wavelength, it can be divided into ultra long wave antenna, long wave antenna, medium wave antenna, short wave antenna, ultra short wave antenna, microwave antenna and so on. But let ’s not talk about it that complicated today, let ’s make it simple. Today I will talk about ceramic antennas. With the development of communication technology, more and more ceramic antennas have entered the lives of ordinary people, such as cars, mobile phones, wearable watches, and so on. Let ’s take a look at ceramic ceramic antennas. Make everyone sought after.
Working band width
The electrical parameters of ceramic antennas are generally related to the operating frequency. Ensure that the frequency range allowed by the electrical parameter indicators is the working frequency bandwidth of the ceramic antenna. Generally, the working bandwidth of an omnidirectional ceramic antenna can reach 3-5% of the operating frequency range, and the directional working bandwidth can reach 5-10% of the operating frequency.
Gain
Gain is one of the main indicators of ceramic antennas. It is the product of direction coefficient and efficiency. It is the performance of ceramic antennas radiating or receiving radio waves. The choice of gain depends on the requirements of the system design on the coverage area of the radio wave. Simply put, under the same conditions, the higher the gain, the longer the distance the radio wave travels.
properties: High hardness, high strength, wear resistance, corrosion resistance, high temperacture (1600°), good thermal diffusivity, good insulativity, low cost etc.
Data Sheet↓
Color: White/Ivory Density: 3.9g/cm3 Alumina Content: 96% 99% 99.5% Gas permeability: 0 Water Absorption: 0 MONS' Hardness: 82 Vickers Hardness (Hv50): 15.7(1600) Gpa(Kg/mm²) Flexural Strength(20°C): 330Mpa Compressive Strength(20°C): 2000Mpa Fracture Toughness (20°C): 4 MPam1/2 Thermal Conductivity(20°C): 27.5W(m.K) Thermal Expansion Coefficient: 7.6 10-6/°C Thermal Shock Resistance: 200 △T°C
Maximum use temperature 1650°C
Dielectric Strength: >10 KV/mm
Dielectric Constant: 9.1er
Dielectric Loss Angle(1MHz): 0.0002-0.0003
Volume Resistivity(20°C): >1014Ω.cm
Application industry: Machinery, electronic, chemical, petroleum etc. Specific application: Electrical ceramic substrate, plunger, sealing ring etc.
Why Choose Us? 1.12 years of professional production industrial ceramics factory 2.High quality products with low price 3.High precision parts with lowest tolerance 4.Short time for production 5.Has a group of experienced, professional and efficient R&D team 6.Has a good reputation in China and abroad. 7.MOQ is not limited, small quantity is welcome.
8.Vigorous team and good after-sales service
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