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#1
December 5th 06, 05:15 PM
posted to rec.radio.amateur.antenna
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I have a doubt in smith chart
"money" wrote in message ps.com... I have a circuit in which there is a series capacitance of value 680 pF. The characteristic impedance of the line is 50 ohms. Can any suggest how do i plot the capacitance in the smith chart. If suppoe it was a parallel capacitance, how do i do it? Try the free Smith Chart demo at: http://fritz.dellsperger.net/. Probably the best electronic version I have seen. 73, Frank (VE6CB) |
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#2
December 5th 06, 07:57 PM
posted to rec.radio.amateur.antenna
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I have a doubt in smith chart
Frank's wrote: "money" wrote in message ps.com... I have a circuit in which there is a series capacitance of value 680 pF. The characteristic impedance of the line is 50 ohms. Can any suggest how do i plot the capacitance in the smith chart. If suppoe it was a parallel capacitance, how do i do it? Try the free Smith Chart demo at: http://fritz.dellsperger.net/. Probably the best electronic version I have seen. 73, Frank (VE6CB) Yeah frank i just downloaded the smith chart demo..... I am looking into it. It is great & is surely helping me a lot. Thanks a ton frank... :-) |
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#3
December 5th 06, 09:46 PM
posted to rec.radio.amateur.antenna
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I have a doubt in smith chart
Try the free Smith Chart demo at: http://fritz.dellsperger.net/.
Probably the best electronic version I have seen. 73, Frank (VE6CB) Yeah frank i just downloaded the smith chart demo..... I am looking into it. It is great & is surely helping me a lot. Thanks a ton frank... :-) Glad you found it interesting. If you need to know more of the theory behind the Smith Chart I would recommend "RF Circuit Design" by Christopher Bowick. It is available on www.amazon.com for $26.37. The treatment is fairly non- mathematical, but it does give great insight into how the Smith Chart works. Frank |
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#4
December 5th 06, 08:04 PM
posted to rec.radio.amateur.antenna
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I have a doubt in smith chart
"Frank's" wrote in message news:YOhdh.17285$YV4.7275@edtnps89... "money" wrote in message ps.com... I have a circuit in which there is a series capacitance of value 680 pF. The characteristic impedance of the line is 50 ohms. Can any suggest how do i plot the capacitance in the smith chart. If suppoe it was a parallel capacitance, how do i do it? Try the free Smith Chart demo at: http://fritz.dellsperger.net/. Probably the best electronic version I have seen. 73, Frank (VE6CB) That is a good Smith Chart program. I have been looking for one. |
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#5
December 5th 06, 09:57 PM
posted to rec.radio.amateur.antenna
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I have a doubt in smith chart
On Tue, 05 Dec 2006 17:15:36 GMT, "Frank's"
wrote: "money" wrote in message ups.com... I have a circuit in which there is a series capacitance of value 680 pF. The characteristic impedance of the line is 50 ohms. Can any suggest how do i plot the capacitance in the smith chart. If suppoe it was a parallel capacitance, how do i do it? Try the free Smith Chart demo at: http://fritz.dellsperger.net/. Probably the best electronic version I have seen. Hi Frank, Why is it that when people develop electronic implementations of the Smith Chart (like this one) that they don't implement things like complex Zo and attenuation in transmission line elements, complex reference impedance (incorrectly termed Zo in this prog)? Owen -- |
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#6
December 5th 06, 10:43 PM
posted to rec.radio.amateur.antenna
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I have a doubt in smith chart
Hi Frank,
Why is it that when people develop electronic implementations of the Smith Chart (like this one) that they don't implement things like complex Zo and attenuation in transmission line elements, complex reference impedance (incorrectly termed Zo in this prog)? Owen Hi Owen, Yes that has always bugged me. Not so much a complex Zo, but transmission line losses would be nice. Frank |
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