Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
Klaus -- thank you very much for the clarification. I was thinking about sweeping the frequency range on the line and looking at the frequencies that resonate as the signal should build at those frequencies to some detectable threshold. Since I design the resonators, I know which frequencies to...
Hi Klaus,
I found several RFID-NFC microcontroller readers on ST Microelectronics website, such as CR95HF and ST25DV04K-IER6S3 as well. I basically need a microprocessor to generate a frequency at 13.56 MHz, that's it. I hope those will help me with my application. By the way, thanks much for...
Hi Everyone,
If I had a string of resonators (let's say 24), on a parallel circuit with a switch before each resonator, would we know a robust circuit in which could determine which of the switches were closed? Any one or any combination, or even all may be switched on. Would each resonator...
Hi,
I have to design a RF Power Amplifier that supports Near Field Communication (NFC - 13.56 MHz). Does anybody has recommendation for this kind of design? I really appreciate it.
Many thanks in advance.
Hi Everyone,
I have a project in which I need to measure the temperature and send the data through bluetooth connectivity. So, somebody can suggest a smart sensor in which it can measure the temperature (with good accuracy) through IR and that there is bluetooth connectivity?
Many thanks...
Yeah, I need to identify if there is a tag in the field or not. I have a TI reader and signal back from the antenna needs to be less than 5V and clear (no noise).
It is a RF application. Actually, when I say "high resolution" I mean that the sine wave between the range 0-5 V needs to be clear (no noise). Like I said, it is a RF application, the TI microcontroller receives an analog signal, I do not need to pay attention on A/D converter or something like...
Hello everyone,
I have a 13.56 MHz signal value between 80-100 V. I need to translate these voltages to 0-5 V for my microcontroller with the highest resolution. I understand that I can step down the voltage using a transformer. However, I would like to know an analog circuit example in which I...
How can I know the location of a UHF passive tag?
Hello Everyone,
I have a UHF system in which there is a reader with a fixed antenna. So I have to read many UHF passive tags and to know where they are, the exactly location. So how can I know the location? Also, I would like to know if...
Hello Everyone,
I have a NFC system (Reader -> Power Amplifier -> Antenna <-> NFC Tag) in which I can generate a H-field strength from 1.5 A/m to 7.5 A/m. So I would like to know how I can measure the Side-Band Amplitude (SBA) as well as lower sideband (@lsb) and upper sideband (@usb)...
Sure. As you know there is communication between the reader and tag by an antenna. So when I need to receive the signal from the tag it will be high voltage, because my system can generate over 90 V to the antenna. It is high enough to blow up the reader. Are you with me? Thanks much for you...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
