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ELECTRICAL FORMULAS

Air Coil Winding Chart
Complete from inductance in microhenries, Number of Turns etc.

Antenna Introduction Basic
Antennas formulae with problem and solution. Real antennas are different, however, and do not
have an ideal radiation distribution. Energy varies with
angular displacement and losses occur due to sidelobes.


Antenna Formulas
With terms and calculations. This terms is traditionally tied to the recieve antenna factor, the
ratio of field strength at the location of the antenna to the output voltage across the load connected to the antenna.


Standard Antenna
Terms and Related Formulas, A surface, near or on an
antenna, on which it is convenient to make
assumptions regarding the field values for the
purpose of computing fields at external points.


BJT Formula Summary
For the pnp device, reverse the directions of all current labels and reverse
the order of subscripts involving node


Cable Design Equations—Coaxial Cable Formulae
Coax cable capacitance, coax cable velocity of propagation, time delay, impedance, cut off frequency,


Coaxial Transmission Lines
Electrical Properties, Relative propagation velocity, Capacitance, Maximum operating frequency, Peak power rating, RF peak voltage


Electromagnetic Relationships and Formulas
Impedance (for an inductor), Core Constant, Inductance L, Attentuation, Magnetic Field Intensity (H), Magnetic Flux Density (B), Inductance (L), Quality Factor (Q)


Inductance Calculation Techniques
Approximations and Handbook, In the second part of this two parts series on inductance calculation techniques, approximation techniques and handbook methods


Antenna Circuit Design for RFID Applications
Passive RFID tags utilize an induced antenna coil
voltage for operation. This induced AC voltage is
rectified to provide a voltage source for the device. As
the DC voltage reaches a certain level, the device
starts operating.


Microstrip Line Impedances
Dielectric Constant, Effective Dielectric Constant.


Complete electronics Formulas and fundamentals
Antenna,Radar Equations, Radar and receiver characteristics and test, Microwave rf components, Electro optics and IR, Aircraft dynamics considerations,
Data transfer busse.


Engineering Reference - Equations
Voltage Reflection Coefficient, Effective Aperature Related to Gain of Antenna, Characteristic Impedance of Free Space, Friis Transmission Equation.


Voltage Standing Wave Ratio
When a transmission line is terminated with an impedance, ZL, that is not equal to the characteristic impedance of
the transmission line, ZO, not all of the incident power is absorbed by the termination.