RF Circuits |
This list of circuits are related to Radio frequency (RF), that deals with circuits that are designed to operate in the radio frequency spectrum. These circuits are set to operate within the range of about 3 kHz up to 300 GHz.
These circuits are incorporated with everything that transmits or receives radio waves, like mobile phones, radios, Wi-Fi, two-way radios, gps circuits, jammer ciruits, transmitters, rf amplifiers, RF oscillators, PLLs, Voltage-controlled oscillators, Transmitters, Transmission lines, RF connectors, Antennas, Receivers, Tuners, Modulators, demodulators, detectors, RF filters, RF shielding, Ground plane, DSSS, Digital radio, etc.
Electric currents that oscillate at radio frequencies have special properties not shared by direct current or alternating current of lower frequencies. The energy in an RF current can radiate off a conductor into space as electromagnetic waves (radio waves); this is the basis of radio technology. RF current does not penetrate deeply into electrical conductors but flows along their surfaces; this is known as the skin effect. For this reason, when the human body comes in contact with high power RF currents it can cause superficial but serious burns called RF burns. In order to receive radio signals an antenna must be used. However, since the antenna will pick up thousands of radio signals at a time, a radio tuner is necessary to tune in to a particular frequency (or frequency range). This is typically done via a resonator in its simplest form, a circuit with a capacitor and an inductor forming a tuned circuit. Radio frequency (RF) energy has been used in medical treatments for over 80 years, generally for minimally invasive surgeries, using radiofrequency ablation and coagulation, including the treatment of sleep apnea. Magnetic resonance imaging (MRI) uses radio frequency waves to generate images of the human body.
People are requesting walkie-talkie and RF remote control schematics, so here are some. Building these circuits needs special equipment and expertise in RF circuits. If you have no experience in RF, I suggest that you choose the easy way and buy a ready-made RF module. Otherwise you can realize you have an exact copy of a circuit in your hand, still it doesn't work the way it should.
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Circuits
Audio Circuits- Audio Filters
- Stereo Circuits
- Ultrasonic Circuits
- Amplifiers
- Audio Oscillators
- Preamplifiers
- Audio Mixers
- Equalizers
- Tone Balance
- Beeper Buzzer
- Vacuum Tubes Valves
- Musical & effects
- Microphone Circuits
- RF Circuits
- PLL Circuits
- UHF circuits
- VHF Circuits
- FM radio
- GPS Circuits
- Jammer Circuits
- RF Transmitters
- RF Receivers
- RF Amplifiers
- AM radio
- FM Transmitter
- Transceiver Circuits
- Antenna Circuits
- Active Antennas
- Antenna Tuners
- Yagi Uda Antennas
- Antenna projects
- Loop Antennas
- Other Circuits
- Demodulators
- Buffer Circuits
- Triac Circuits
- Mosfet Circuits
- Sequencer
- 555 Timer Circuits
- Doorbell Circuits
- Switching Circuits
- Remote Control Toy
- H Bridge Circuit
- Game Circuits
- Keypad Circuits
- Sensors Detectors
- Metal Detector Circuits
- Liquid Sensing Circuits
- Light Sensing Circuits
- Voltage Detector Circuits
- Air-Gas Detection Circuits
- Human Sensing Circuits
- RF & Radiation
- Medical Circuits
- Sensor Circuits
- Magnetic circuits
- Optical Sensing Circuits
- Hall Effect
- Oscillator Circuits
- Varius Circuits
- Astable
- Colpitts
- Crystal
- Hartley
- RF
- Sine wave
- Square wave
- Volt controlled
- Wein Bridge
- Monostable Circuits
- Pierce
- Power Supplies
- Tesla Circuits
- Inverter Circuits
- Free Energy Circuits
- Chargers
- AC to DC & DC to DC
- Solar Cell Circuits
- Current Limiting
- Micro Power Circuits
- High Voltage
- Switching Power Supplies
- Meters Counters
- Timer Circuits
- Voltmeters
- Frequency meter
- Meters Circuits
- Counters
- Clock Circuits
- Checker Circuits
- Delay Circuits
- Thermometer Circuits
- VU Meters
- Light Laser LED
- Infrared
- Xenon
- Lighting
- Light Sensing
- Laser
- Led circuits
- Fluorescent Circuits
- LCD circuits
- Light Dimmers
- Digital Circuits
- Readout Circuits
- Logic Circuits
- Digital to Analog
- Display Circuits
- Analog to Digital
- Data Logging
- Data Bus Circuits
- Decoder Circuits
- Converter Circuits
- Voltage to Pulse
- Current to Voltage
- Frequency to Voltage
- RF Converter Circuits
- Sine to Square Wave
- Voltage to Current
- voltage to frequency
- Period to Voltage
- Video Circuits
- Video Mixer
- Video Wall circuits
- TV Video Circuits
- Modulator
- Camera Circuits
- Television
- Photo Flash
- Video Amplifier
- Automation
- Stepper Motor
- Remote Control
- Servo Circuits
- Robotics
- Direction Finder
- Power Control
- Relay Circuits
- Motor Control Circuits
- Microcontrollers
- Arduino projects
- PIC Microcontroller
- AVR Microcontroller
- Programmers
- 68HC11 Microcontroller
- 8051 / 8052
- MCU Circuits
- Security Circuits
- Design Software
- Computer Circuits
- Automotive
- Telephone Circuits
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Tutorials
