Wireless smart sensor with small spiral antenna on Si-substrate
#sensor
#spiral antenna
#Si-substrate
#smart sensor
#RF
#wireless communication
#antenna design
#embedded
#IoT
#low-power
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Simple RF Power Meter
Many beginners trying out their skill with QRP TX for the first time have to overcome many problems before they are able to come on the air. One usual complaint is that everything is working fine, but the signal is...
RF Circuitry Links
The 7th overtone of 18 MHz (17m) is 144 MHz (2m) directly within the CW region. Icarus is a high-altitude balloon (HAB) project funded by advertising revenue, which has successfully launched numerous balloons that captured impressive photographs. Robert Harrison is...
Single injector-tracer
In the "Trace" mode, the non-linear operation of the amplifier will detect modulated RF signals, which will be filtered by the 0.001 µF capacitor and heard in the headphones. In the "Inject" mode, this circuit will provide a nominal square...
RF Wireless Data Transfer communication Circuit diagram
RF Wireless Data Transfer communication circuit diagram. A wireless communication interface was implemented to facilitate data transfer from one point to another using RF technology.
The RF Wireless Data Transfer communication circuit utilizes radio frequency (RF) technology to establish a wireless...
SENSITIVE RF VOLTMETER
This schematic illustrates a peak-reading diode voltmeter that is powered by two amplification stages. A 100 µF capacitor is utilized to create a substantial time constant, which ensures effective damping of the meter. The restricted differential output voltage, combined with...
Pots water alarm circuit
The flowers in pots require watering, as relying solely on the observation of moist soil surfaces can be unreliable. To address this issue, a flower watering indicator has been developed. This circuit includes a field effect transistor (VT1), a second...
GBPPR 1 GHz RF Spectrum Analyzer
An RF spectrum analyzer is an essential tool for experimenters. The spectrum analyzer project described here is an enhancement of the "Spectrum Analyzer for the Radio Amateur" (Part 2) project by Wes Hayward (W7ZOI) and Terry White (K7TAU), which appeared...
RF Decibel Meter
This is a zine dedicated to electronics circuit diagrams, DIY (do it yourself) electronics projects, electrical electronics data sheets, and microcontroller projects for hobbyists, students, consultants, and product designers.
The zine serves as a comprehensive resource for individuals interested in electronics,...
RF Remote Control Switch Rx-Tx circuits
This circuit includes a 2048 radio remote control transmitter and a corresponding wireless receiver that features high reception sensitivity and low power consumption. The combination of these two components provides a highly reliable remote control system, suitable for various applications...