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LC Ladder Bandpass Filter Design | Elliptic (Cauer) Response - 3rd Order | Example 4 

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In this video, we will discuss the LC ladder filter design having an Elliptic (Cauer) response characteristics. Elliptic (Cauer) Response have ripple both in the passband and stopband region, and is the most efficient filter response in terms of filter order. So, you can achieve the same filtering performance with a lower order filter compared to other filter responses.
The designed filter is a passive third-order LC bandpass filter. We will make the transformation from the lowpass filter circuit into the bandpass filter circuit. We will workout the design step by step and verify our calculations using simulations in TINA-TI SPICE.
👉 More LC Ladder Filter Design: • LC Ladder Filter Design
📚 Resources 👇
[1] Analog Filter Design, M. E. van Valkenburg
[2] Handbook Of Filter Synthesis, A.I. Zverev
[3] Electronic Filter Design Handbook, Arthur B. Williams
🔗 RF Filter Design: my.ece.utah.ed...
🔗 Analog Filter Design using MATLAB: nl.mathworks.c...
🔗 RF Filter Design using MATLAB: nl.mathworks.c...
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#Elliptic #bandpass #Filter #Design #Ladder #Analog #Inductor #Capacitor #frequency #bodeplot #Cauer #electriccircuits
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15 окт 2024

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Комментарии : 2   
@kenpeter3767
@kenpeter3767 Месяц назад
Markimicrowave's 3rd order elliptic calculator exports to LTSpice with -6dB lost in passband as you also note. 50/50 terminations give same loss for straight wire. Can fix by changing AC 1 0 to AC 2 0 at the input. Now wire shows 0dB as it should, or as Marki calculates before export. I still don't quite get the math, but this style filter is strangely not difficult to coil on a screwdriver and tune with NanoVNA. Four near-identical LC series filters meet in the middle. Don't interact much, tune grounded notches to either side, tune SMA passes for minimum loss. Marki calculates a stop tank in series with another stop tank to make notches. You calculate a stop tank with series pass LC across the top to spoil one big notch and make like two. Seems to be where you are shaping passband ripple? I might build both tank versions to compare practical differences to the all series-pass I built earlier. Wish comments allowed to attach photo or drawing.
@CanBijles
@CanBijles Месяц назад
Thanks for your message.I received your mail too. I will get back to this next week.
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