Pcaad 6

System Requirements 6 B. By definition, an antenna is a device used to transform an RF signal, traveling on a conductor, into an electromagnetic. Click the Compute width button to compute and print the required line width, and the effective dielectric constant for the line. The feed point is at the apex of the wire arms.

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Two different solutions are available for probe-fed rectangular patches, as well as solutions for a microstrip line fed rectangular patch, a proximity coupled rectangular patch, an aperture coupled rectangular patch, and a probe-fed circular patch. The surface roughness dimension has a default value of zero. Validation Consider a element linear H-plane dipole array.

Your selections on this window can be saved as default values by clicking the Pcwad Defaults button. Another routine uses numerical aperture integration to compute the secondary radiation patterns and directivity for prime focus reflectors with arbitrary feed patterns. In Print A simple guide Work areas Communicate: The data must be in sequence, in order of increasing angle.

The real part, the imaginary part, and the frequency up to five characters should be delimited with commas or spaces. Various parts of the display are labelled in red, with arrows, to define the terms used in the remainder of this overview. Entering this value in the VSWR box of the calculator routine and pressing Enter shows that the input reflection coefficient magnitude isthe input return loss is 9.

The geometry of the V-dipole may be viewed in three dimensions by clicking the Show Geometry button.

General wire antenna analysis. A user-friendly Windows interface Full bit compiled software Very simple and intuitive operation Fast results for first-cut designs Graphic illustrations of each antenna geometry Polar, rectangular, and 3-D pattern plots Smith chart, VSWR, and return loss plots for input impedance Data file output pcxad patterns and impedance matrices On-line help Validation examples for each analysis routine A.

Click the Compute button, and the routine will compute and print the cutoff frequencies of the 1,02,00,11,1and 0,2 modes; if the mode is propagating at the specified frequency, the propagation constant pcaaf also be printed, otherwise it is listed as cut-off.

Click the Compute button to print out the normalized to k 0 propagation constant for each propagating surface wave mode. The choice of E-plane or H-plane horn is made from the Aperture antenna menu. It is assumed that the coupling slot is centered under the patch, the feed line is centered across the slot, and that pccaad feed line is terminated with an open-circuited stub.

PCAAD 2.1 Personal Computer Aided Antenna Design

The Aperture Antennas Menu This set of routines are used for the analysis of various aperture antennas. Specify no ground plane by setting the ground plane spacing to zero. This first picture was obtained through Graph Plot.

The routines also compute patterns and directivity. Reference [2] gives a beam maximum angle of When computing characteristic impedance, you will enter the dielectric constant, the substrate spacing, and the line width. Rectangular Pattern Plot This routine plots up to two planar antenna radiation patterns in rectangular form.

The solution uses the piecewise sinusoidal expansion PWS Galerkin method, with the exact exponential integral expressions used for the impedance matrix elements, as detailed in references [11]-[12].

PCAAD Personal Computer Aided Antenna Design

The program can also be closed by clicking the box at the top right of pcqad main window. Generally you will not have to modify this file, and, like most. The element type is selected by clicking the small Select button to the right of the text box for element type. This lobe is often higher than nearby sidelobes, especially when a small number of phase shifter bits are used. Cpaad this is a problem, interpolation may be turned off in the Plot Options window. Uniform Rectangular Array Pcaa and Analysis This routine is used to plot patterns and compute the directivity of a rectangular planar array antenna.

You can specify the radius of the array, element spacing center-to-centera radial amplitude taper, and the element type.

Begin by entering the E-plane narrow wall and H-plane broad wall inside dimensions of the guide, the dielectric constant of the material filling the guide, and the operating frequency.

Note that this is a residual sidelobe level caused by errors, in contrast to the design sidelobe level that is determined by the amplitude taper. If the dipole is center-fed, the number of expansion modes should be odd, and the mode number of the generator should be the middle mode this mode number is automatically selected as the default mode number for the generator.

Next enter the width pfaad the microstrip feed line, and the loss tangent of the substrate material.

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