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Contents
• Projects
• Eprom Wave Player
• CETH-60 Counter
• Preamplifier
• Prescaler : 1000 / 1.5 GHz
• Prescaler : 1000 / 12 GHz
• 10 MHz OCXO
• Function Generator (with XR2206)
• DDS Generator (with AD9851)
• VHF Airband Receiver with DDS
• HF Receiver with DDS
• Curve Tracer (simple)
• Curve Tracer (advanced)
• DCF-77 Signal Generator
• Homebrew Geiger Müller Counter
• Power Supply
• PETH-20 Power Supply
• PETH-30 Power Supply
• PETH-40-HAM Power Supply
• PETH-49 Power Supply
• Power Supply Designer
• VB 408 Replacement
• Artificial Ground
• Amplifier Design
• MAR, ERA Amplifier Bias Calculator
• BJT Buffer Amplifier Designer
• BJT Amplifier Bias Calc.
• FET Amplifier Bias Calc.
• Opamp Calculations
• Slew-Rate Considerations
• Antenna Design
• Bi-Quad Antenna Designer
• Cantenna Calculator
• Discone Antenna Designer
• HB9CV Antenna Calculator
• Helix Antenna Calculator
• Helix Antenna with Match Calculator
• Lambda/4 Groundplane designer
• Logarithmic Periodic Dipole Antenna Calculator
• Yagi Uda Antenna Designer
• J-Pole Antenna
• Wokatenna Design
• Dipole Construction
• Filter Design (AUDIO)
• Sallen-Key Lowpass
• Sallen-Key Highpass
• Bandpass Filter Design Guide
• Sallen-Key Bandpass
• Active Bessel Bandpass Filter 4th order
• Active Butterworth Bandpass Filter 4th order
• Active Chebyshev Bandpass Filter 4th order
• Simple Bandpass Filter
• Narrow Bandpass Filter
• Notch Filter
• Filter Design (RADIO)
• Butterworth Lowpass Filter
• Butterworth Highpass Filter
• Butterworth Bandpass Filter
• Butterworth Bandstop (Notch) Filter
• Chebyshev Lowpass Filter
• Chebyshev Highpass Filter
• Chebyshev Bandpass Filter
• Chebyshev Bandstop (Notch) Filter
• Combline Bandpass Filter Design
• Constant K Lowpass Filter
• Constant K Highpass Filter
• Constant K Bandpass Filter
• Crystal Filter Design
• Interdigital Bandpass Filter
• Components
• Attenuator
• Coax Calculator
• Diel. Coax Resonator
• Helical Coil Calculator
• Wire inductance Calculator
• Iron Powder Toroidal Coil
• Ferrite Toroidal Coil
• Heatsink Calculator
• Diplexer Bandpass
• Diplexer Lowpass
• Matching Network
• Broadband Impedance Matching with Transformer
• Wilkinson Power Split
• Coaxial Power Split
• Resistive Power Split
• Power Transformer Design :: EI • M Core
• Resistor Colour Code (Decoder:-) :: 4 RINGS
• Resistor Colour Code (Decoder:-) :: 5 RINGS
• Resistor Colour Code (Decoder:-) :: 6 RINGS
• Software
• RFSim99
• AppCad
• Mini Ring Core Calculator
• Datasheets, Manuals
• Datasheet Collection of our Projects
• HP Service Manuals
• Papers of Changpuak
• Engineering Formula Collections / Goodies
• PLL, VCO, Oscillator
• 4046 VCO Dimension
• PLL Loopfilter Designer
• PLL Loopfilter Designer V2
• NE 555 Oscillator
• NE 555 Monoflop
• RC HCT Inverter Oscillator
• Circuit Collection : Oscillators
• Tutorials
• Klirrfaktor
• PLL Seminar
• PLL Seminar #1 - Theory
• PLL Seminar #2 - Loop Filter Calculations
• PLL Seminar #3 - Simulations with LTSpice
• Engineering Formula Collections / Goodies
• Conversions
• Noise Figure • Temp.
• Power Conversion
• AWG • Metric Conversion
• VSWR • Return Loss
• Phase Noise to Phase Jitter Converter
• misc. Calculations
• Cascaded Noise Figure
• Find parallel Resistor
• Pathloss / RSSI
• Missmatch Loss
• IP3 / SFDR Calculator
Statistics
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Your IP is 38.107.179.224
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MORE INFORMATION
ขอวิศวกรผู้ยิ่งใหญ่ทรงพระเจริญ
further reading
The
ARRL Antenna book
has an interesting article about 'HF Discone Antennas' including some historical facts.
Your valuable opinion :
Avg. 4 from 25 votes.
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Info
www.changpuak.ch
\
electronics
\ calc_11.php - December 09 2011 21:18:09
Discone Antenna Calculator
min. Freq. [MHz]
Π [°]
L
s
[mm]
L
v
[mm]
C
max
[mm]
C
min
[mm]
D [mm]
S [mm]
Your valuable comment :
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