Shahriar Posted October 31, 2005 Report Share Posted October 31, 2005 HiToday when I was looking at my TV Antenna mixer PCB, I saw that some of thetracks have been made in a shape like Two Comb. you can see such shapes in PC Motherboard's Tracks too.What I guess is that they want the two tracks have a same condition likeTwisted Wires to remove the Common Mode Interference. Am I right?Here's the pictureThanXShahriar Quote Link to comment Share on other sites More sharing options...
Staigen Posted October 31, 2005 Report Share Posted October 31, 2005 Hi ShahriarI dont think so, i belive it is some kind of tuning cap or impedance matching, what is it on the other side of the PCB?//Staigen Quote Link to comment Share on other sites More sharing options...
audioguru Posted October 31, 2005 Report Share Posted October 31, 2005 It looks like a cheap but very accurate low value capacitor. ;D Quote Link to comment Share on other sites More sharing options...
Shahriar Posted October 31, 2005 Author Report Share Posted October 31, 2005 Dear StaigenIf you mean the Component side of PCB, In the Antenna Board, I should say nothing, but in PC motherboard, I should say I don't know because the Motherboard as you know is a 4 or more layer PCB.Dear AudioguruMaybe It is as you said. ??? Quote Link to comment Share on other sites More sharing options...
Staigen Posted November 1, 2005 Report Share Posted November 1, 2005 HiOf course i mean the TV Antenna mixer PCB, i hope the PC motherboard dont have something to do with your Antenna Board! ;D//Staigen Quote Link to comment Share on other sites More sharing options...
Shahriar Posted November 1, 2005 Author Report Share Posted November 1, 2005 Dear Staigen [shadow=red,left][/shadow] If you mean the Component side of PCB, In the Antenna Board, I should say nothingI think you misunderstood my meaning, There is nothing on the Component side because it is a single layer board ;DThanXShahriar Quote Link to comment Share on other sites More sharing options...
Staigen Posted November 2, 2005 Report Share Posted November 2, 2005 Ok, then it is a cap :)//Staigen Quote Link to comment Share on other sites More sharing options...
boombar Posted November 3, 2005 Report Share Posted November 3, 2005 It's a small CAPACITOR.I don't believe it's even a calculated one. It stands just to cancel verry small noise. Goes before active component so the noise doesn't get amplified to the level that effects signal quality.Think of it as twisted pair, only on PCB level.To be an inductor, it has to be single track in zig-zag, so it defenetly is NOT an INDUCTOR.Bye. Quote Link to comment Share on other sites More sharing options...
Guest Decade Posted November 3, 2005 Report Share Posted November 3, 2005 zig-zag and straight traces are conductors, a short trace could be a tuned circuit shorted or open at the end it will form band pass or notch filter, this is probably a capacitor as stated before or it may as well be part a tuned circuit Quote Link to comment Share on other sites More sharing options...
Guest Alun Posted November 3, 2005 Report Share Posted November 3, 2005 I agree with boombar, it can't be an inductor because there is a separation between the conductors, and inductors are often spirals instead of zigzags. Quote Link to comment Share on other sites More sharing options...
Guest Decade Posted November 3, 2005 Report Share Posted November 3, 2005 It depends on frequency wether i'ts a straight line or spirals, a track looking like a single comb could theoretically be a stacked filter ;D Quote Link to comment Share on other sites More sharing options...
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