10-500 MHz Wideband RF Amplifier

This RF amplifier circuit is suitable for the frequencies between 10MHz and 500MHz. These kind of amplifiers are called wide band amplifiers. Wideband amplifiers are used in communication receivers, RF measuring equipment and tons of other devices. The RF power amplifier circuit described here uses a state of the art transistor to get maximum performance at high frequencies. It can be used as a low noise pre-amplifier due to his low noise characteristics. This is a classical RF amplifi [...]

28/10/2008 | RF Transmitter Circuit Resource | Tecnologia | rf power amplifier

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General Purpose Wide Band Amplifier 50 Hz-100 MHz

Here is a general purpose wide band amplifier with a wide bandwidth of 50 Hz to 100 MHz. Typical frequencies are 5 and 10 MHz, but any frequency from 50 Hz to 100 MHz can be used. Output levels of this wide band amplifier are +35 dB at 100 kHz, +30 dB at 10 MHz, +17 dB at 100 MHz noise smaller than 10 uV across 50 ohms with RF input -30 dBm MAX. Wide band Amplifier Schematic

28/10/2008 | Build Your Own Radio Station RF Transmitter Technical Guide | wide

RF Amplifier Broadband 88-108 MHz 8W

This RF amplifier for FM 88-108 MHz with no tune (broadband) needed to cover all the FM Band. You need the 2N3866 driver stage to boost properly the BLV10 transitor. All the impedance networks (Input-Output) of this RF amplifier have been determined by using the softwares: Mimp.EXE - Genesys. RF FM Power Amplifier Schematic-PCB Due to the good harmonic rejection of the RF amplifier design, a low pass filter is not necessary. Or you can download RF Filter Design AADE and RF Filter Desig [...]

28/10/2008 | RF Transmitter Circuit Resource | rf amplifier

RF Amplifier Broadband 88-108 MHz 20W

This RF amplifier for FM 88-108 MHz with no tune (broadband) needed to cover all the FM Band. This RF Power amplifier is equiped with two Philips bipolar transistors : the BLV10 & BLW87. All the impedance networks (Input-Output) of this RF amplifier have been determined by using the softwares: Mimp.EXE. This RF Amplifier need a 9 elements low pass filter ensures that its harmonic frequency meet at least a 60 dB rejection from the carrier.(RF Simulation with RFSIM99) This RF FM ampl [...]

28/10/2008 | RF Transmitter Circuit Resource | rf amplifier

25W Broadband RF Amplifier 88-108 MHz

This RF amplifier for FM 88-108 MHz with no tune (broadband) needed to cover all the FM Band. This RF Power amplifier is equiped with the famous Mosfet transistor the BLF245. Depending on the output power level you are able to provide with your FM synthesizer, you can use or not the 2N3866 driver stage included in this amplifier design. Impedance matching network file(PDF) All the impedance networks (Input-Output) of this RF amplifier have been determined by using the softwares: Mimp.E [...]

28/10/2008 | Electronic Transmitter Guide | power amplifier

20W UHF RF Amplifier for 430-470 MHz

This UHF RF Amplifier circuit uses MH720A1 hybrid power module from Mitsubishi that operates between 430MHz and 470MHz and will output approximately 20 Watts of RF power from a 10mW input source. This amplifier can be used as part of a 457MHz pager transmitter. This hybrid power modules amplifier are offered by various manufacturers and can often be obtained second hand of amateur rallies. Most hybrid modules require an input power of 20dBm. Therefore, a driver stage before the hybrid [...]

28/10/2008 | RF Transmitter Circuit Resource | amplifier