FILTRONETICS, Inc. designs and manufactures a complete array of filters, oscillators and crystals. |
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Ceramic FilterClick here to search our filters product database A ceramic filter is distinguished from other filters by the discrete ceramic structures that form each resonator. Each element introduces a transmission zero in the pass band of the filter. Coupling between the resonators is achieved by using fringe-field etched capacitors on an alumina substrate. This topology allows for narrow band structures with low insertion loss. However, only bandpass and bandstop filters are available. The entire ceramic filter resembles a microwave combline filter with 90 degrees resonators. The term 90 degrees refers to the electrical length of the device at the operating frequency. For example, in a resonator, with a dielectric constant of 1, at a frequency of 1000 MHz, the electrical length is about 1 foot. Thus, 90 degrees is 3 inches. However, if the dielectric is changed to 36 the length scales by the inverse square root, resulting in a length of 0.5 inches. The advantage of a ceramic substrate is the reduction of length. Filtronetics, Inc. offers ceramic filters of custom center frequency and bandwidth. The typical range for the center frequency is from 200 MHz to 3 GHz. Moreover, pass bandwidth can be from 1% to 15% of the center frequency. Ceramic filters are used principally in commercial, low cost applications. However, military and hi-reliability units are available. Ceramic filters are available in surface mount (SMD), through hole, and custom packages. |
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FILTRONETICS, Inc. located in Kansas City, Missouri was established in 1970. Over the past 35 years, Filtronetics, Inc. has developed a broad line of frequency products for diverse applications ranging from communications to instrumentation for commercial, industrial and military applications. Filtronetics, Inc. is known for the ability to consistently provide the highest quality custom LC, Microwave, Ceramic, SAW and Crystal filters available. Filter types include bandpass, low pass, high pass, notch diplexer and dual band. The company’s mission is to become a valued supplier for all customers, which range from University researchers to Fortune 500 Companies. In addition to custom filters, a broad line of crystals, monolithic filters and oscillators are offered. Filtronetics, Inc. works with our customers to guide them through the development process with technical support for critical filter and oscillator applications such as PCS, GSM, E-GSM, WLL, B-WLL, LMR, ISM 915, ITM 2000, GPS, TRS, LMR, CT-2,E-TACS, SAT COM ATM, SONET, LAN, data processing and high reliability applications. Filtronetics, Inc. offers various alternatives and related pros and cons to optimize the cost benefit rational. Filtronetics, Inc. continually updates its Kansas City facility and equipment with the latest technology.
Quality
Team:
Quality is the
foundation of Filtronetics, Inc. success. The Quality Control
department combines more than 35 years of experience. Current quality
standards are based on and registered to ISO-9000. Customer or project
specific requirements are also available, as well as conformance to IPC-610,
MIL-STD-202, MIL-STD-883 and many other standards.
Hi-Reliability:
Filtronetics, Inc. is
responsible for the design and production of numerous high reliability
filters used by the United States government and government related
programs.
Filtronetics, Inc. has participated by providing electronic components and electrical engineering expertise in many leading government sponsored electrical component testing programs.
Filtronetics Inc • 6010 Parretta Drive • Kansas City, Missouri MO (USA) 64120 • Tel: 816-231-7375 Fax: 816-241-0368 Email: filtro@filtro.net
