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- DCF-77 Synthesizer. With Arduino. Aka "TimeDuino"
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- Power Supply Designer : Rectification
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- Yet another LM317 Calculator
- Feedback Voltage Divider Finder (LM2576 e.a.)
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- VB 408 Replacement
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- Sungmod - A 270 V / 1 mA Power Supply
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- Thormod, a Power Supply for Photodiodes
- PETH-6 Power Supply • ± 15 V, 100 mA
- PETH-6 Power Supply • +7.5 V, for Arduino / Genuino
- PETH-20 Power Supply • ± 15 V, 600 mA
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- Amplifiers • Calculations
- BJT Buffer Amplifier Designer (Collector Feedback Bias)
- BJT Buffer Amplifier Designer (Base Bias Network)
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- Broadband VHF Power Amplifier, 3 ... 540 MHz, 1.5 W
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- Broadband Power Amplifier, 1 Watt from 2 - 2500 MHz
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- VHF Power Amplifier with the M57762 - 1.2 ... 1.35 GHz, 1 W+
- VHF Power Amplifier with the TAT8888 - 50 ... 1000 MHz, 1 W
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- Sojamod, a 20 dB RF Amplifier up to more than 1.5 GHz
- Sojamod-AF, a 20 dB AF Amplifier Class-D
- Opamp Circuits • Knowledge
- Cascading OPAMPs For Increased Bandwidth
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- Bipolar Voltage to Unipolar Voltage ADC Driver
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- Differential Amplifier
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- Remembering Robert A. Pease, aka "RAP"
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- Antenna Selection Guide
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- ADF 4350 Module
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- MEMS Oscillators - SiT8008/SiT8208/SiT8209
- The Mobile Emitter
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- 4046 VCO Calculator
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- Transmod, shifts 6.8±1 GHz to 1.0±1 GHz.
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- Noise • Introduction
- Calibrate your Noise Source. ENR calculator.
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- DIY Noise Source with 2 x GVA-81+ - ENR : 21.43 dB @ 1.0 GHz
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เราจะทำแบบวิศวกรผู้ยิ่งใหญ่
25. December 2024
YOU RATED THIS ...
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bandpass_filter_designer.php 5522 Bytes 12-02-2018 11:22:57
Bandpass Filter Designer
When designing Bandpass Filters, it is sometimes
more convenient to have a Lowpass / Highpass combination instead of a 'true Bandpass'.
This tool let's you decide, when to use which approach. The decision is derived from
the relative Bandwidth.
NOTE:
• If the rel. Bandwidth is less then ~ 90 % it is wise to use a true Bandbass.
• If the rel. Bandwidth is larger than ~ 90 % it is wise to use a Highpass + Lowpass.
• If the rel. Bandwidth is 90% you have a problem :-) just kidding - choose by yourself.
Information based on 'Das AKTIV-FILTER Kochbuch',
by Don Lancaster, ISBN 3-88322-007-8
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