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Recent content by mmohdnor

  1. M

    Build loop PCB antenna for EM4095 RFID Reader

    calculate pcb antenna mdusan, are u using any simulation software for the antenna? (e.g : ADS/Momentum, HFSS, CST, etc) what is ur current solution as of now? i mean, what have u done so far? could u tell me more about ur application? (e.g: antenna size, dimension, range, etc) actually i'm...
  2. M

    Build loop PCB antenna for EM4095 RFID Reader

    rfid loop antenna mdusan, what is the freq of the RFID? have u found any solution yet? i'm also trying to design a loop antenna, but it is for remote car key at 433.92mhz.
  3. M

    how to limit LNA input to be <0dbm (choosing pin diode)

    rx input limiter what kind of mistakes are there in the app notes do u mean ?
  4. M

    how to limit LNA input to be <0dbm (choosing pin diode)

    pin diode application thanks a lot vfone & mazz, seems like this is what I'm looking for ... maybe i can grab something from the pinhandbook ...let me browse thru the handbook a little bit by the way, the antenna for my band is different (e.g not sharing the same antenna) .... few more...
  5. M

    how to limit LNA input to be <0dbm (choosing pin diode)

    lna limiter Hi guys, thanks for taking the time. here's the path for my receiver : Antennna > Limiter > Pre-selector Filter > LNA input (initially i put the limiter after the filter) my transmitter is transmitting at 433.92mhz (ISM band) with a max of 13dbm. And there's another RF...
  6. M

    how to limit LNA input to be <0dbm (choosing pin diode)

    pin diode limiter Hi, can somebody help me? I would like to limit the RF power coming into my LNA input. The maximum input it can receive is 0 dBm (1mW). I want to protect it from a nearby RF signal that is 20 to 30dBm (1 watt). The operating freq range is 430-450mhz. I'm not familiar with...
  7. M

    microstrip antenna gain range?

    anybody knows what is the microstrip antenna gain of remote car keys? i wonder how they fit a practically short microstrip antenna to radiate at 315/433mhz freq inside remote car keys .... any ideas? (sorry might be out of topic already)
  8. M

    help !!! increase the bandwith of mirostrip antenna

    wow .. if only i have enough points ...*sigh*
  9. M

    Links to various HFSS tutorials

    Re: HFSS TUTORIALS Tutorial is available on the Ansoft website? where ? ** sorry, i'm a noob in hfss ... just started using it for a few days... currently trying to do simulation on microstrip antenna at uhf (short range)
  10. M

    All topics related to AD7758

    ade7758 meter calibration I'm interested to know more about your project. I've been wanting to build one for myself too. Anyway, I found this website which posts some stuff on DIY watt meter. I don't know if that helps...

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