superheterodyne receiver

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superheterodyne receiver

(ˌsuːpəˈhɛtərəˌdaɪn)
n
(Telecommunications) a radio receiver that combines two radio-frequency signals by heterodyne action, to produce a signal above the audible frequency limit. This signal is amplified and demodulated to give the desired audio-frequency signal. Sometimes shortened to: superhet
[C20: from super(sonic) + heterodyne]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.superheterodyne receiver - a radio receiver that combines a locally generated frequency with the carrier frequency to produce a supersonic signal that is demodulated and amplified
heterodyne oscillator, local oscillator - an oscillator whose output heterodynes with the incoming radio signal to produce sum and difference tones
radio receiver, radio set, receiving set, tuner, radio, wireless - an electronic receiver that detects and demodulates and amplifies transmitted signals
References in periodicals archive ?
Because the behaviors of the mixer exhibit relatively high isolation and low power consumption, the proposed mixer is suitable for direct conversion receiver applications.
The system susceptibility to interference in a direct conversion receiver, both from adjacent or alternative adjacent channel signals, can be severely degraded due to the poor second nonlinearity distortion.
7 GHz dual-band WLAN receiver, a direct conversion receiver (DCR) is more suitable for integrated circuit design than a heterodyne receiver, since an external image-reject filter is no longer required.
Fast sampling oscilloscopes, direct conversion receivers in radios, radar or electronic warfare systems, demand wider-bandwidth and higher sample rate analog-to-digital conversion.
For a direct conversion receiver, second-order nonlinearity causes any large blocking signal to result in an unwanted DC output.
Increased pressure for low power, small form factor, low cost and reduced bill of materials in such radio applications as mobile communications has driven academia and industry to resurrect the direct conversion receiver Long abandoned in favor of the mature superheterodyne receiver, direct conversion has emerged over the last decade or so thanks to improved semiconductor process technologies and astute design techniques.
Skyworks' CDMA radio system is a two chip solution that includes a direct conversion transmitter (SKY74068), low-noise amplifier (SKY74092), direct conversion receiver (SKY74100), power amplifier, SAW filters and various passive components.
Halonen, "An Analog Baseband Circuitry for a WCDMA Direct Conversion Receiver," Proceedings of the 25th European Solid-state Circuits Conference (ESSCIRC), Duisburg, Germany, September 1999, pp.
Sequoia Communications' proprietary technology delivers the highest level of integration to the multi-mode mobile device market with a polar modulation transmitter and a direct conversion receiver.