image reject mixer

image reject mixer

[′im·ij ′rē‚jekt ‚mik·sər]
(electronics)
Combination of two balanced mixers and associated hybrid circuits designed to separate the image channel from the signal channels normally present in a conventional mixer; the arrangement gives image rejection up to 30 decibels without the use of filters.
References in periodicals archive ?
A PLL synthesizer and image reject mixer further reduce external component count to simplify integration.
AMMC-6550: Image reject mixer, 15-50 GHz, supports a wide range of radio bands with 20 dBm image rejection ratio.
The device integrates an Image Reject Mixer (IRM), Low Noise Amplifier (LNAs) and Reference-VCXO to reduce external component count and system costs.
The product's key innovations comprise integration of a tri-band Image Reject Mixer (IRM) with Low Noise Amplifiers (LNAs) for the receiver front end architecture combined with an integrated Reference-VCXO (Voltage Controlled Crystal Oscillator) reducing external component count and cost.
Hybrid junctions are often used as part of more complex divider/coupler, balance mixers, image reject mixers, single sideband modulators, phased array and smart antenna feed network assemblies.
External filter requirements are reduced through the use of image reject mixers and on-chip filters, thereby further reducing system cost.