The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Rejection Filter

an electric filter that prevents the passage of oscillations in a certain frequency band but permits the passage of oscillations outside of this band.

Rejection filters are used to reduce the interference generated by a powerful radio station (usually nearby) and affecting the reception of other radio stations (suppression filter), or to suppress interference generated by the audio frequencies of the sound track on a television screen (notching filter).

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References in periodicals archive

A full-aperture energy rejection filter is recommended for use with Schmidt-Cassegrain or Maksutov telescopes.

Solar H-Alpha

The reason for the decline is the stronger rejection filter that prevents suspicious returns from being processed.

Roundup of tax-related identity theft resources

This paper aims to explore the total effect of the bandpass filter (BPF) and rejection filter (RF) on the ECG signal recorded by a high-resolution electrocardiograph based on nanoelectrodes without filters in the band from 0 to 150 Hz [2].

The effect of parameters of electrocardiograph measuring channel on recordings of micropotentials of the heart

The nonlinear characteristics of diodes generate unwanted harmonic signals that propagate backward to the antenna and forward to the load; therefore, a harmonic rejection filter, a DC-pass filter, and a matching circuit for the diode impedance should be carefully designed to obtain an optimized [[eta].sub.RF-DC] [7-11].

A Compact and Wideband Circularly Polarized Rectenna with High Efficiency at X-Band

The network functions as a harmonic rejection filter and dc feed inductors in the class E amplifier.

A class E power amplifier with coupling coils for a wireless power transfer system

The output of the differential CMOS LNA is connected to a balun and passes through an image rejection filter to the single-ended mixer.

5.7 GHz 0.25 [micro]m CMOS RF front-end circuits for an IEEE 802.11a WLAN receiver

We investigated various parameters for potential rejection filters. The criteria used to select the filters are that a valid and efficient rejection filter should not generate any false negatives and should be able to significantly reduce the number of chemicals for experimental evaluation.

Prediction of estrogen receptor binding for 58,000 chemicals using an integrated system of a tree-based model with structural alerts. (Articles)