HAM Radio 1/HamRadio.cdr/tech/rf3/abstract

Text File | 1986-08-23 | 5.6 KB | 118 lines

AMPCALC   S parameter circuit design program which calculates from a set of S
parameters: input and output impedance, voltage gain, available gain and
transduced gain (both unilateral and actual gain), unilateral constant gain
circles, stability constant, optimum source and load impedances for
unconditionally stable amplifiers, stability circles (when gamma opt data is
available). The program also permits the source and load impedances to be
varied in an interactive manner which allows  the optimum transducer gain to
be determined for a conditionally stable amplifier and S parameter files to
be saved and read from disk.

TCAP - Trenton Circuit analysis Program, a general purpose circuit analysis
program wwhich performs DC and AC circuit analysis on a N node circuit.
This program is similar to classical Fortran ECAP. Possible elements include
resistors, capacitors, inductors, voltage sources, current sources,
transistors (NPN and PNP) and operational amplifiers. Both frequency and
component value can be varied.

L- MATCH - L matching network design program. Specify L network configuration,
unloaded Q, complex source and load impedances, and this program calculates
the element values required for a match, loaded Q and loss in db.

Q-MATCH  - This program is an extension of L-MATCH to common 3 and 4 element
matching networks (i.e. PI,T,PI-L). The program allows the loaded Q to be
independently specified and provides the element values necessary for both
match and required Q. The impedance of the source is limited to 50 ohms real.
The load may be any complex impedance.

S-MATCH - Single stub matching program. The position from the load and length
of a shorted stub is calculated for a specified complex load and line Z0.
Stub and line characteristic impedance are assumed to be the same.
(Program may require work to improve accuracy for some points.)

MS - Microstrip design program. Allows analysis and synthesis of both
coupled and single microstrip transmission lines. The program also
calculates wavelength on the basis of effective permitivity at a specified
frequency.

SAT - Satellite system design program. Calculates SNR for different system
parameters.Both up link and down link parameters are considered.

FILTER - Allows the synthesis if LP, HP and BP filters of Butterworth or
Tchebychev type - up to 10 sections. Specify pass band frequency limits,
stop band frequency limits, required attenuation, and terminal impedance.
The program calculates the number of sections necessary for a given filter
type and the required component values. The program allows the choice of 7
different prototype configurations. This feature facilitates the realization
of a filter with practical component values. The program also allows
individual parameters to be varied (as terminal impedance) until satisfactory
values are achieved.

IND-CALC - Inductor design and analysis program. This program allows the
analysis and synthesis of inductors composed of strap, straight wire, or
wire wound in a coil.

COMB - Microstrip comb line filter design program. Calculates the dimensions
of bandpass microstrip combline filters. Normalized low pass prototype
element values for the desired filter type are required.





FILT-ELE - Low pass prototype filter element program. This program is usually
used in conjunction with COMB to determine equivalent LPF elements. Data
required is identical to that of FILTER except normalized prototype element
values are provided.

YZHT-S  - Two port conversion program converts either Y, Z, H, or T (ABCD)
two port parameters to their equivalent S parameters.

S-YZHT - Reverse of YZHT-S,converts S to either Y, Z, H, or T parameters.

SPUR - Calculates N x M products of local oscillator multiplier chain.
Considers both clean and dirty L.O. cases. Allows range of N X M products to
be taylored to specific special needs.

T-PI - T and PI network two port parameter program. the Z parameters of a
generalized T or the Y parameter of a PI network are calculated. Resultant
two port parameters may be saved as a disk file.

T-NET - T network S parameter program which calculates the S parameters of a
generalized T network.

MAT - Two port arithmetic program which adds or multiplies 2 two port matrices.
Read and saves two port files.

WAVE-G - Rectangular waveguide design program which calculates the cut-off
frequencies for different modes, characteristic impedance and wavelength in
the guide for a specified operating frequency.

FOURIER - Fourier series program which calculates the fourier spectrum of a
waveform. (A square wave specified in the program) Program must be modified
for other waveforms.

FFT - Fast fourier program similar to FOURIER but uses fast fourier algorithm.

BESSEL - Bessel function evaluation program which calculates the value of any
order Bessel function of the 1st kind. (Only accurate for arguments < 20.)

DC-BIAS - Bias calculation program which performs analysis or synthesis of
common bipolar transistor circuits.

BESS-T - An extension of BESSEL program which prints out a table of Bessel
values and their corresponding db value for a given order Bessel function.

POL-REC - Polar to rectangular conversion program which is just like a
calculator.

REFCOEF - The reflection coefficient corresponding to a given complex
impedance is calculated.

Z-INVT - Impedance inversion program which calculates the parallel equivalent
of a circuit of a given complex impedance.

TRANSLIN - Transmission line attenuation simulation program which calculates
the voltage standing wave pattern along a transmission line.