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Amplifier Circuits:  RF (Radio Frequency)
RF (Radio Frequency):  #-C       D-N       M-R      S-Z

Amplifier -- Main Page
Last Updated on:
Wednesday, October 28, 2009 04:37 AM



Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:
Determining Maximum RF Output Power Rating - Application Note Microsemi-formerly Advanced Power Technology APT0401  ( app note added 2/07)
Digital wireless for the bench top ATtiny12   - This section describes an experimental low power, low bandwidth data signaling system that was initially made to operate at 55 MHz (television channel 2 in the U.S.). Before operating a radio transmitter, find out what kind of transmitter operation, if any, is permitted in your locality. Radio transmitter operation is a serious legal matter. This design ....(added 6/07)
Experiments with Detector Diodes - When building crystal radios or other simple receivers, the experimenter often wonders about the relative performance of the different diodes in the junk box. Here are the results of several experiments using the typical ….(added 04/05/06)
First Demonstration of 4H-SiC RF Bipolar Junction Transistors on a Semi-insulating Substrate with fT/fMAX of 7/5.2 GHz Semi-insulating Substrate with fT/fMAX of 7/5.2 GHz  - Application Note Microsemi MTTS05 (added 2/07)
Frequency Meter with 100 MHz RF desktop channel  - This basically the frequency meter section of the frequency meter/pulse generator based on the AT90S2313 described elsewhere on this site, combined with the 100 MHz RF interface described in the page about the RS-232 to 100 MHz RF desktop channel adapter. Built and align this is the same manner as the 100 MHz RF desktop channel adapter. The frequency meter ...(electronic design added 6/07)
Frequency Meter with Minimum Mass Wireless Coupler  - A 0 to 2 MHz ferquency meter with a Minimum Mass Wireless Coupler, based on the ATMega8.Range to the Minimum Mass Base Unit is 10 to 15 cm. Since the frequency meter is battery operated, it can be floated from ground, making life in and around the test bench a lot simpler. No need to connect it to the computer or LCD display...(schematic added 6/07)
Frequency meter with wireless Data Channel - This basically the frequency meter section of the frequency meter/pulse generator based on the AT90S2313 described elsewhere on this site, combined with the 100 MHz RF interface described in the page about the RS-232 to 100 MHz RF desktop channel adapter. Built and align this is the same manner as the 100 MHz RF desktop channel adapter. The frequency meter ....(electronic design added 6/07)
General Purpose Power Supply - National Semiconductor Application Note  (app note added 6/06)
General Purpose RF Amplifier - (circuit / schematic design added 6/06)
Generic VHF Power Amplifier - (electronic circuit added 7/03)
High Quality, All-Digital RF Frequency Modulation Generation with the ADSP-2181 & the AD9850 DDS - AN-543-Analog Device Application Notes  (app note added 6/06) 
High Voltage, High Efficiency MOSFET RF Amplifiers - Application Note Microsemi-formerly Advanced Power Technology APT0001  ( app note added 2/07)
High-Efficiency 400 Watt 13.56 MHz RF Power Amplifier - Application Note Microsemi formerly Advanced Power APT9501(added 1/07)
Improved 3 Transistor Audio Amp 80 milliwatt - This circuit is similar to the one above but uses positive feedback to get a little more amplitude to the speaker. I copied it from a small 5 transistor radio that uses a 25 ohm speaker. In the circuit above, the load resistor for the driver transistor is tied directly to the + supply. This has a disadvantage...(circuit diagram added 6/07)
LCD Display with Minimum Mass Wireless Coupler - Its an adaption of the 2X 16 LCD project, by adding a fettite loop antenna, two resistors, and a capacitor. Here the display shows the output of the 10 bit scanning voltmeter with Minimum Mass Wireless Coupler.  (ATtiny2313, AT90S2313)….(schematic added 6/07)
Low Cost 1000 Watt 300 Volt RF Power Amplifier for 27.12MHz - Application Note Microsemi-formerly Advanced Power Technology APT9701  ( app note added 2/07)
Low cost RF for simple data link & remote control - This section describes an experimental low power, low bandwidth data signaling system that was initially made to operate at 55 MHz (television channel 2 in the U.S.). Before operating a radio transmitter, find out what kind of transmitter operation, if any, is permitted in your ....(added 6/07)
Low Frequency Sine Wave Generator - The two circuits below illustrate generating low frequency sine waves by shifting the phase of the signal through an RC network so that oscillation occurs where the total phase shift is360 degrees. (added 2/03)
 

RF (Radio Frequency):  #-C       D-N       M-R      S-Z

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