Components in a receiver that process the signal at the original incoming radio frequency
Block diagram of a superheterodyne receiver. The RF front end consists of the components on the left colored red.
In a radio receiver circuit, the RF front end, short for radio frequency front end, is a generic term for all the circuitry between a receiver's antenna input up to and including the mixer stage.[1] It consists of all the components in the receiver that process the signal at the original incoming radio frequency (RF), before it is converted to a lower intermediate frequency (IF). In microwave and satellite receivers it is often called the low-noise block downconverter (LNB) and is often located at the antenna, so that the signal from the antenna can be transferred to the rest of the receiver at the more easily handled intermediate frequency.
^Carr, Joseph J. (2001). The Technician's Radio Receiver Handbook: Wireless and Telecommunication Technology. Newnes. p. 23. ISBN 0750673192.
In a radio receiver circuit, the RFfrontend, short for radio frequency frontend, is a generic term for all the circuitry between a receiver's antenna...
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in the field of radio frequency (RF). It focuses on RFfrontend design for RF switches, RF low-noise amplifiers and RF filters. Maxscend was founded in...
control solutions used in mobile phones (including smartphones), WiFi RFfront-ends and components used in wireless infrastructure equipment. The company...
subarrays that individually resemble PESAs, where each subarray has its own RFfrontend. Using a hybrid approach, the benefits of AESAs (e.g., multiple independent...
subarrays that individually resemble PESAs, where each subarray has its own RFfrontend. Using a hybrid approach, the benefits of AESA (e.g., multiple independent...
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receivers using a single IF frequency, the RF stage includes at least one tuned circuit in the RFfrontend whose tuning is performed in tandem with the...
microwave antennas often have the output stage of the transmitter or the RFfrontend of the receiver located at the antenna, and the signal is fed to or from...
The Rhodesian Front (RF) was a conservative political party in Southern Rhodesia, subsequently known as Rhodesia. Formed in March 1962 by white Rhodesians...
causing the differences in audio performance called "valve sound". The front-endRF amps of radio receivers are particularly susceptible to this phenomenon...
in many microwave antennas the output stage of the transmitter or the RFfrontend of the receiver is located at the antenna. The term microwave also has...
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extremely sensitive radio receivers similar to radio telescopes. The RFfrontend of the receiver is often cryogenically cooled to −195.79 °C (−320 °F)...
satellite communication antennas, thermal noise is reduced by cooling the RFfrontend of the receiver to cryogenic temperatures. Cosmic background noise is...
the modern superheterodyne receiver that must only tune the receiver's RFfrontend and local oscillator to the desired frequencies; all the following stages...
reduces the gain. It is usually disadvantageous to reduce the gain of the RFfrontend of the receiver on weaker signals as low gain can worsen signal-to-noise...
housing containing a part of the reception electronics (also called the "RFfrontend"). This LNB converts the high satellite microwave downlink frequencies...
000 ft) in diameter to collect enough radio wave energy to study. The RFfrontend electronics of the receiver is often cooled by liquid nitrogen to reduce...
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architecture with interchangeable daughterboard modules that serve as the RFfrontend. Several classes of daughterboard modules exist: Receivers, Transmitters...
a conventional receiver front-end, must be eliminated. The basic concept of this photonic-assisted all-dielectric RFfront-end technology is shown in Fig...
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