Background Morgan Electro Ceramics is a leader in the design and manufacture of advanced ceramic products with over 50 years experience in the manufacture of electroceramic materials and components for the RF industry. Multilayer Capacitors | | | Ship to shore radios for transmitting and receiving | Radios operating over medium range at power levels around one kilowatt and frequencies in the 10 to 60 MHz region for distress signalling and message communications. | | Military Radios - Back Pack Type (walkie-talkie radios) As Ship to Shore Radios | | | Magnetic Resonance lmaging – MRI | In Medical Body Scanners the capacitors are used to resonate at a particular frequency (10 to 64 MHz) which in turn gives an excitation resonance in the particular nuclei in the body. | | RF Power - Plasma Generators (1 to 5kW) used in Semiconductor Manufacture. | RF Power used to ionise gas thus generating RF plasma used in various deposition 1 etching 1 cleaning processes. | | High Power Matching Networks in Plasma Generators. | Matching network used to tune Plasma Chamber impedance to a constant load. | How and why these capacitors are used • These capacitors have relatively high capacitance values due to the ceramic dielectric and the series/parallel internal structure used. • They have small size and low weight due to the high breakdown strength of the dielectric used. • They handle high RF power and high peak current levels due to the low loss / high Q of the ceramic dielectric. • They exhibit low equivalent series resistance (ESR) resulting in the high RF current carrying capability. • They exhibit low equivalent series inductance (ESL) extending the upper limit to their high frequency use. |