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Lumped Element (LC) Filters

From Anatech Electronics, Inc.
 

 

LC filters can be specified in lowpass, bandpass, bandstop, or highpass configurations and in diplexers and duplexers as well. Their task, like all types of electrical filters, is to modify the frequency- or time-domain characteristics of a transmission path to reject interference arising from various external sources. LC filters are useful over a frequency range of below 100 kHz to slightly above 3 GHz.


Products & Services
RF band pass filters are active or passive circuits that pass signals from a specific frequency band and reject signals from out-of-band frequencies. Surface acoustic wave (SAW) filters, crystal filters, and cavity filters are types of band pass filters. Search by Specification | Learn more about RF Band Pass Filters
RF power dividers and RF power combiners are circuits that accept input signals and deliver multiple outputs that are equal in phase and amplitude. There are two basic product categories: passive and active. Search by Specification | Learn more about RF Power Dividers and RF Power Combiners
RF diplexers are three-port frequency-dependent devices that may be used as a separator or a combiner of signals. RF duplexers allow a transmitter operating on one frequency and a receiver operating on a different frequency to share a common antenna with a minimum of interaction and degradation of the different RF signals. Search by Specification | Learn more about RF Diplexers and Duplexers
RF filters and microwave filters are devices that pass or reject signals by frequency. Basic types include bandpass filters, band reject filters, low pass filters, and high pass filters. Search by Specification | Learn more about RF Filters and Microwave Filters
RF terminators are used to absorb energy and prevent RF signals from reflecting back from open-ended or unused ports. Search by Specification | Learn more about RF Terminators

Product Announcements
Anatech Electronics, Inc. - Lumped Elements (LC) Filters custom...
Anatech Electronics Lumped Elements filters covers the frequency range from 300 KHz to 15 GHz. The Lumped Elements filters are available in 2 to 15 sections, with power handling as high as 2Kwatts. (read more)
Anatech Electronics, Inc. - Filters & Products for commercial & Military Apps.
Anatech Electronics provides a variety of RF and Microwave filters, and products for the communication, and wireless industry. Type of filters offered are Bandpass, Duplexers, Lowpass, Highpass, and... (read more)
Micro Metalsmiths - RF Filters and Microwave Filters
Optimum filter design is achieved through the use of specially produced in-house software, HFSS software and, most importantly, Micro Metalsmiths extensive design database. These tools allow detailed... (read more)
Anatech Microwave Company - 256.5 MHz LC Bandpass Filter
Anatech's 256.5 MHz LC Bandpass Filter used in Aerospace applications. (read more)
Anatech Electronics, Inc. - 420 MHz Lowpass Filter ...
Find out what we can do for you. Anatech specializes in providing reliable filters built for Aerospace and Military applications. (read more)
Spectrum Advanced Specialty Products - Surface Mount EMI Filters
Spectrum Control, Inc.'s new MSM series of surface mount EMI filters offers a footprint of 0.078 inches by 0.049 inches. (read more)
Anatech Microwave Company - 6-GHz LC Highpass Filter...
This LC highpass filter has a cutoff frequency of 6 GHz, passband of 6 to 18 GHz, insertion loss in the passband of less than 1 dB... (read more)
Spectrum Advanced Specialty Products - High Current/High Voltage Resin Sealed Filters
Spectrum Control, Inc. introduces a full line of high current/high voltage resin sealed EMI/RFI filters with current ratings to 100 Amps. (read more)
Spectrum Sensors and Controls - Rugged Temp Sensor Made for Difficult Environments
Spectrum Sensors and Controls introduces a ruggedized sensor for monitoring temperature in challenging applications, such as high moisture environments where the sensor is subject to continuous... (read more)
 

Topics of Interest
4.1 Introduction The lumped lowpass prototype filters discussed so far are restricted to a 1 ? impedance level and a cut-off frequency of ? c = 1 rad/s. In reality we would like to design filters... (Read More)
2.1 Linear Passive Time-Invariant Networks This book is concerned with the design of passive RF and microwave filters. These devices are manufactured using a variety of technologies, e.g. coaxial... (Read More)
6.3 Filter architectures and design methods As we have seen in Section 6.2, the most common types of filter response required are lowpass and bandpass, but occasionally a demand arises for other... (Read More)
Find (by hand) what the signals and would be for the filter bank in Figure 9.11. Let , , and . Be sure to show your work. With a two-channel filter bank, such as in Figure 9.12, we found... (Read More)
3.1 Introduction A lowpass prototype is a passive, reciprocal, normally lossless two-port network which is designed to operate from a 1 ? generator into a 1 ? load. The network response has a... (Read More)