Hi, can somebody explain this RLC circuit to me?

  • #1
434
19
Hello to everbody can you help me how come C6 to be 10p and c5 13.5 and and l1 to be 190n and L6 240n
i start with 100Meghz, with one circuits 50/XL or 50/XC now become three different thanks
i understand the first circuit, i understand the second circuit, but now they make three circuits
how come
those
how come C6 to be 10p and c5 13.5 and and l1 to be 190n and L6 240n



rlc.gif
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tutorial....
It is very interesting to check the effects of this modifications on the
filter response in Fig.7
The response show that while the filter with
series inductor and capacitor has a symmetrical
response (blue trace), the two inductor filters has
steeper response at higher frequencies (red
trace), this network is normally referred as low
pass coupling
. The two capacitor filter has
steeper response at low frequencies (green
trace), this type of coupling is referred as high
pass coupling
.
Fig. 7
Note that in the two coupling capacitor filter, the
value of resonant capacitor C5 has been
decreased in order to compensate the frequency
shift caused by the two coupling capacitors, in
the two inductor filter inductance L1 has been
increased to compensate for the frequency shift
caused by the two inductors
 

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Answers and Replies

  • #2
berkeman
Mentor
58,776
8,903
It is very interesting to check the effects of this modifications on the
filter response in Fig.7
Can you Upload the gain plots too please? Thanks.
 
  • #4
NascentOxygen
Staff Emeritus
Science Advisor
9,244
1,072
the two inductor filters has
steeper response at higher frequencies (red
trace)
I may be colorblind. Is it the red plot that looks steeper at higher frequencies to everyone else?
 
  • #5
Merlin3189
Homework Helper
Gold Member
1,653
769
Not to me. Red falls off steeper on the left (low freq.)

But perhaps he doesn't mean steeper and just chose the wrong word?
 
  • #6
NascentOxygen
Staff Emeritus
Science Advisor
9,244
1,072
@michael1978 please indicate which output (OUT1, etc) corresponds to which co!or.
 
  • #7
434
19
Not to me. Red falls off steeper on the left (low freq.)

But perhaps he doesn't mean steeper and just chose the wrong word?
greetings
 
  • #8
434
19
thnx to everbody i solved
 

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