RF

Thin Film Metallized Substrates

Thin Film Metallized Substrates

Submounts have been developed by combining metallization and ceramic material technologies which MARUWA has cultivated for many years. The materials can be customized with various pattern technologies, such as wraparound metallization. This product is used in circuit substrates for optical storage, optical communication, RF application, and various other uses.

High Temperature Co-fired Substrates (HTCC)

High Temperature Co-fired Substrates (HTCC)

This product achieves a variety of products with high reliability, high density, and multifunction. It is used in ceramic heater, optical/power element package, and sensor package.

Antenna Blocks and Plates

Antenna Blocks and Plates

These product are used in anntenas for mobile phone/car navigation and Bluetooth®. Plates for GPS antennas in car navigation systems are available in 25mm square and 20mm square. Boards for GPS antennas in mobile phones are available from 12 to 9mm square. Plates for capacitors in isolators are available in 50mm square with various types of material.

Low-noise Amplifiers (TE Mode)

Low-noise Amplifiers (TE Mode)

In a system that requires amplification of multi-stage very weak signals, such as those of satellite broadcasting and satellite communication, the entire noise is affected by the firststage noise. Therefore, that portion requires very low noise design. For this reason, a high Q is required and a resonator of TE mode is used. Those produced by MARUWA are in the frequency range of 4GHz to 20GHz. There are two types; support attached type and resonator only. The size differs depending on the frequency. Materials of various temperature characteristics are available. Please contact us for further information.

Coaxial Resonators (TEM Mode)

Coaxial Resonators (TEM Mode)

Coaxial resonators are mainly used for band pass filter (BPF). Stable frequency with high quality dry pressing technology and precision machining technology.

FC Series

FC Series

This capacitor has low impedance, high frequency and high Q. It is suitable for communication appliances and medical equipments.

Feed Through Ceramic Capacitors (SMD) CTH Series

Feed Through Ceramic Capacitors (SMD) CTH Series

Feed through Capacitors are ideal for high frequency noise reduction of large current circuits. The structure is simple; multilayer electrodes which are low resistance are formed on dielectric ceramics. The structure will hardly allow residual inductance, and the self resonant frequency extends to the microwave band. The multilayer electrode structure excels in solder heat resistance and solderability.

Feed Through Ceramic Capacitors PLE Series

Feed Through Ceramic Capacitors PLE Series

These feed through type ceramic capacitors consist of dielectrc ceramics and multilayer electrodes. Therefore, they have very low residual inductance. Their resonance frequency reach the microwave band, and offer superior performance in removing unnecessary high frequency noise. There is only a minimum change of characteristics by soldering and severe thermal cycles. When they are assembled into shield cases, both shielding and filtering can be achieved. Therefore, they will be very effective for superior EMC control. Suitable to be assembled into connectors due to the small size.

Screw Type EMI Filters FTA Series

Screw Type EMI Filters FTA Series

For this series, a feed through type ceramic capacitor with an extremely high self-resonating frequency is soldered into a shielded case with screw, and sealed with resin. They are extremely small, and highly reliable. They are suitable for preventing high frequency wrap and unnessesary radiation.

Band Pass Filters

Band Pass Filters

MARUWA has developed the Band Pass Filters (BPF) by applying the ceramic technologies which we have cultivated for many years. Our advantage is that we have integrated production processes from raw material process by using own dielectric ceramics (coaxial resonators). They can be customized.

Voltage Controlled Oscillators

Voltage Controlled Oscillators

MARUWA has developed the Voltage Controlled Oscillators (VCO) by applying the ceramic technologies which we have cultivated for many years. Our advantage is that we have integrated production processes from raw material process by using own dielectric ceramics (coaxial resonators). VCO can be customized, such as extremely small size model, high CN model (using own coaxial resonator), etc.

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