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Recent content by angie-filt

  1. A

    h**p://www.microstripes.com/closed ?

    Hi Web site is open, try at http://www.flomerics.com/ Angelo
  2. A

    Help me build a motion detector using pyroelectric sensor

    Re: motion detector Hi Fresnel lens are usually selled with infrared security sensors because they are parts of them. Angelo.
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    How to build a small radar?

    Hi Try this one, from Ham radio. Angelo.
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    Flat Band Output Noise & White Gaussian Noise

    Hi The term gaussian is related to the probability distribution of noise voltage level that it's described by a gaussian curve. This kind of noise is generated by thermal effect in resistor, attenuation and other passive devices. If you connect a scope to the output of any circuit you will...
  5. A

    I want to design a GPS LNA, who can help me?

    Hi you can design a circuit with two MAAM12021 ic preamplifier by Macom. This is an eccellent high gain low noise amplifier and it just needs some external bypass capacity to work, you can ask to Macom for free samples. Angelo
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    Bessel bandpass design

    Hi You can find Bessel and others kind of response on "Microwave,filters,impedance matching, network and coupled structure" by Matthaei, Young, Jones. Mc Grave Hill On this book you can find also other books referencies about signal filtering. Angelo
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    TDS1002 Digital oscilloscopes

    Hi I think it's a good scope but, of course, you have to consider your need. Price is interesting. Angelo
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    3-dimensional radiation pattern drawer for antennas

    Re: radiation pattern drawer Hi do you need plotter from simulation or from E,H plane measurements? Try www.aldena.it Angelo
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    Questions about antenna radiation and terms in antenna field

    Re: questions about antenna HI backward radiation and forward radiation are related to main antenna lobe, forward radiation is the region were directivity (or gain) has its max value; "backfire","endfire" and "broadside" are also related to the maximal value of directivity; in particular...
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    Help me with designing a s band VCO

    Re: s band vco Hi try this one, from Alphaind application notes https://www.skyworksinc.com/ Angelo
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    Why broadband antennas are so important?

    Re: Broadband antennas Another situation you need a broadband antenna is in commercial FM broadcasting. Here in Italy trasmitting frequencies are assigned by government and rules are different between two different city, so you need to buy a TX and antenna for covering all FM radio band (88-108...
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    Bandpass Coupled Line Filters

    Hi Another good book on coupled lines is : RF and Microwave coupled-line circuits by R. Mongia, I. Bahl, P. Bhartia Artech House ISBN 0-89006-830-5 Angelo
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    software eznec - looking for some info

    eznec antenna Hi EZNEC is a commercial sw. You can download a demo at **broken link removed** it' s a HAM program so I think it's not so expensive. Angelo
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    Patch Antennas in WinNec

    Hi what kind of antenna is fix antennas ? I'm using WinNEC for my work and I think it can simulates every antenna you can build with lines; of course if the antenna is particular or more complex you need a lot of time for making it, but you can find on internet some utilities which help you in...
  15. A

    Can somebody give me some advice about ESD simulation?

    Hi, you can find an equivalent generator model for ESD on ETSI rules (CE mark). You can try to found ETSI EN 61000-4-5 (or EN 1000-4-5 that's older, but is alreday the same paper) on ESD protection or ETSI EN 300-386 to view all normatives on CE marking. I hope it will help you. Angelo.
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