P01

The p01 file is the input file for the ASERIS-BE solver elfipole as well as the calcvp and modes modules for waveguides.

A p01 file is also used as input for PoR with some slight modifications explained in this page.

General syntax

A p01 file is made of unordered embedded blocs.

BLOC
    SUBBLOC
    [..] # comments
    END
    # Commented bloc
    #SUBBLOC
    # [..]
    #END
END

Note

Indentation is free

Content is usually provided by:

  • keywords without expected data

BLOC
    KEYWORD
END

  • keywords with expected data of given format

BLOC
    KEYWORD FORMAT data
END

  • variables with expected data of given format

BLOC
    ID VARIABLE FORMAT data
END

Note

ID and VARIABLE are provided in the d01_h[.xml] file produced by anadel or metanadel.

Data is either:

  • a numerical data

value

  • a file

file.ext

If the unit of a numerical value is not given, then the quantity is normalized (no dimension):

name[unit]

normalized

A complex data z has a real part noted _r and an imaginary part noted _i:

z_r z_i

Warning

Unless explicitely specified, all complex data are provided in the \(e^{-i\omega t}\) time convention. Hence imaginary part of lossy materials must be positive.

Warning

Complex permittivities and permeabilities are always given as relative values with respect to vacuum properties.

Main blocs

DESCRIPTION

DESCRIPTION
I can write whatever...
...I want here
This bloc is optional.
END

SOFTWARE:ASERIS_BE

Input BEM model

SOFTWARE:ASERIS_BE
    FILES
        DIRECTORY:DATA ./
        FILE:DATA basename.d01        ELECTROMAGNETISM MAIN
        FILE:DATA basename_BF_ALL.d01 ELECTROMAGNETISM MAIN_BF
        FILE:DATA basename_Mob1.d01   ELECTROMAGNETISM MOBIL
        FILE:DATA basename_Mob2.d01   ELECTROMAGNETISM MOBIL
        FILE:DATA basename_H_EXT.d01  ELECTROMAGNETISM MODAL
    END
END
Syntax:
DIRECTORY:DATA <d01 relative or absolute directory>

FILE:DATA <d01 file> ELECTROMAGNETISM D01_KEYWORD

D01 keywords:

  • MAIN is used for the main model (exactly one)

  • MAIN_BF for the main low frequency model (at most one)

  • MOBIL is used for mobile models (one file per position)

  • MODAL is used for each modal surface

  • COUPLING is used for a coupling surface (at most one)

Input for PoR

SOFTWARE:ASERIS_BE
    FILES
        DIRECTORY:DATA ./
        FILE:DATA target.d01        ELECTROMAGNETISM MAIN
        FILE:DATA source_1.d01      ELECTROMAGNETISM MAIN
        FILE:DATA source_2.d01      ELECTROMAGNETISM MAIN
        FILE:DATA source_3.d01      ELECTROMAGNETISM MAIN
        FILE:DATA source_4.d01      ELECTROMAGNETISM MAIN
    END
END
Syntax:
DIRECTORY:DATA <d01 relative or absolute directory>

FILE:DATA <d01 file> ELECTROMAGNETISM MAIN

Warning

In a PoR computation there is only one target d01 and several sources. There should as many res files as sources defined as binary sources in the ILLUMINATION section. They must be defined in the very same order.

Warning

The D01 keyword is ignored: we use only MAIN.

ELECTROMAGNETISM

Homogenous volumic materials

ELECTROMAGNETISM
    MATERIALS:VOLUMICS_HOMOGENEOUS
        1 D1   COMPLEX 3.2 0.1 100. 0.
        2 DIEL COND    1. 0. 1. 0. 1e-1
        3 DOM2 FILE    d1.txt
        4 EXT  COMPLEX 1 0 1 0
    END
END
Syntax:
DOMAIN_ID DOMAIN_NAME COMPLEX eps_r eps_i mu_r mu_i

DOMAIN_ID DOMAIN_NAME COND eps_r eps_i mu_r mu_i sigma[S/m]

DOMAIN_ID DOMAIN_NAME FILE <frequency dependent file>

Volumic FILE file format.

Warning

EXT is the reserved domain name for the exterior unbounded domain and is always the last one (greatest ID).

Warning

Except for EXT, names of dielectric domains must start with D.

Thin resistive surfacic materials

Resistive materials names start with CR_.

ELECTROMAGNETISM
    MATERIALS:SURFACICS
        1 CR_EXT_1  RESISTIVE 50. 20.
        2 CR_D1     SIGMA_D_EPSILON 1e5 1e-3 2.0 0.0
        3 CR_EXT_2  RESISTIVE:MULTILAYER_FILE layers.txt
    END
END
Syntax:
SURFACE_ID SURFACE_NAME  RESISTIVE Z_r[Ohm] Z_i[Ohm]

SURFACE_ID SURFACE_NAME  SIGMA_D_EPSILON sigma[S/m] d[m] eps_r eps_i

SURFACE_ID SURFACE_NAME  RESISTIVE:MULTILAYER_FILE <file with several layers of sigma/d/epsilon>

RESISTIVE:MULTILAYER_FILE file format.

Thin conductive surfacic materials

Conductive surfacic materials names start with CS_.

ELECTROMAGNETISM
    MATERIALS:SURFACICS
        1 CS_EXT_1  IMPEDANCE:COMPLEX 50.0 0.0 # single impedance Z- = Z+
        2 CS_EXT_2  IMPEDANCE:COMPLEX 376.991e-3 0.0 376.991 0.0 # dual impedance Z- != Z+
        3 CS_EXT_3  COMPOSITE:EPSILON_MU_SIGMA_D 1.0 0.0 1.0 1e5 1e-3
        4 CS_EXT_4  COMPOSITE:MULTILAYER_FILE layers.txt
        5 CS_EXT_5  IMPEDANCE:FREQUENCY_FILE impedance.txt
        6 CS_EXT_6  COMPOSITE:FREQUENCY_FILE dual_impedance.txt
        # these last 2 are for layer formulation only
        7 CS_D1_EXT TRANSPARENT:EPSILON_MU_SIGMA 1.0 0.0 1.0 1e0
        8 CS_D1_EXT TRANSPARENT
    END
END
Syntax:
SURFACE_ID SURFACE_NAME IMPEDANCE:COMPLEX Z_r[Ohm] Z_i[Ohm]

SURFACE_ID SURFACE_NAME IMPEDANCE:COMPLEX Z+_r[Ohm] Z+_i[Ohm] Z-_r[Ohm] Z-_i[Ohm]

Note

Dual impedance depends on the mesh orientation where \(\hat n_-\) is the normal of the mesh and points outside domain \(\Omega_-\).

SURFACE_ID SURFACE_NAME COMPOSITE:EPSILON_MU_SIGMA_D eps_r eps_i mu_r sigma[S/m] d[m]

Note

The permeability is real, that is, mu_i=0 implicitely.

SURFACE_ID SURFACE_NAME COMPOSITE:MULTILAYER_FILE <file with several layers of epsilon/mu/sigma/d>

COMPOSITE:MULTILAYER_FILE file format.

SURFACE_ID SURFACE_NAME IMPEDANCE:FREQUENCY_FILE <frequency dependent impedance file>

IMPEDANCE:FREQUENCY_FILE file format.

SURFACE_ID SURFACE_NAME COMPOSITE:FREQUENCY_FILE <frequency dependent dual impedance file>

COMPOSITE:FREQUENCY_FILE file format.

SURFACE_ID SURFACE_NAME TRANSPARENT:EPSILON_MU_SIGMA eps_r eps_i mu_r sigma[S/m]

SURFACE_ID SURFACE_NAME TRANSPARENT

Thick conductive surfacic materials

The name of an imperfect conductive surfacic material on a thick metallic domain MET starts with IS_MET_. Such materials are defined similarly to thin conductive sheets materials except for dual impedance and layer materials which are invalid in that case. Conversely, LEONTOVITCH boundary condition is only available for imperfect thick conductive materials.

ELECTROMAGNETISM
    MATERIALS:SURFACICS
        1 IS_MET_EXT_1  IMPEDANCE:COMPLEX 50.0 0.0 # single impedance Z- = Z+
        2 IS_MET_EXT_3  COMPOSITE:EPSILON_MU_SIGMA_D 1.0 0.0 1.0 1e5 1e-3
        3 IS_MET_EXT_4  COMPOSITE:MULTILAYER_FILE layers.txt
        4 IS_MET_EXT_5  IMPEDANCE:FREQUENCY_FILE impedance.txt
        5 IS_MET_DV1_6  LEONTOVITCH:EPSILON_MU_SIGMA 1.0 0.0 1.0 1e5
        6 IS_MET_DV2_7  LEONTOVITCH:MU_SIGMA 1.0 1e5
    END
END
Syntax:
SURFACE_ID SURFACE_NAME LEONTOVITCH:EPSILON_MU_SIGMA_D eps_r eps_i mu_r sigma[S/m]

SURFACE_ID SURFACE_NAME LEONTOVITCH:MU_SIGMA_D mu_r sigma[S/m]

Note

The permeability is real, that is, mu_i=0 implicitely.

Layer surfacic materials

Layer materials names start with LR_, LS_ or LT_. It is always attached to some surfacic material: CS_.

ELECTROMAGNETISM
    MATERIALS:VOLUMICS_HOMOGENEOUS
        1 D1   COMPLEX 1.0 0.0 1.0 0.0
        2 D2   COMPLEX 3.2 0.0 1.0 0.0
        3 EXT  COMPLEX 1.0 0.0 1.0 0.0
    END
    MATERIALS:SURFACICS
        1 CS_D1_EXT   SIGMA_D_EPSILON 1e5 1e-3 2.0 0.0
        2 CS_D1_D2    COMPOSITE:EPSILON_MU_SIGMA_D 1.0 0.0 1.0 1e5 1e-3
        3 CS_D2_EXT_1 TRANSPARENT:EPSILON_MU_SIGMA 1.0 0.0 1.0 1e0
        4 CS_D2_EXT_2 TRANSPARENT
    END
    MATERIALS:LAYERS
        1 LR_D1_EXT   RESISTIVE   1 1 3
        2 LS_D1_D2    COMPOSITE   2 1 2
        3 LT_D2_EXT_1 TRANSPARENT 3 2 3
        4 LT_D2_EXT_2 TRANSPARENT 4 2 3
    END
END
Syntax:
LAYER_ID LAYER_NAME (RESISTIVE|COMPOSITE|TRANSPARENT) SURFACE_ID DOMAIN1_ID DOMAIN2_ID

Warning

RESISTIVE layers are deprecated.

Lineic materials

Wire materials names start with CF_.

ELECTROMAGNETISM
    MATERIALS:LINEICS
        1 CF_EXT_1 REAL 2e-3 0.0 1e-20 1e-3
        2 CF_EXT_2 COMPLEX 2e-3 0.0 1e-3
        3 CF_EXT_3 COATED 2e-3 0.0 1e-3 2.0 0.01 2e-3
    END
END
Syntax:
WIRE_ID WIRE_NAME REAL R[Ohm/m] L[H/m] C[C/m] radius[m]

WIRE_ID WIRE_NAME COMPLEX Z_r[Ohm/m] Z_i[Ohm/m] radius[m]

WIRE_ID WIRE_NAME COATED Z_r[Ohm/m] Z_i[Ohm/m] inner_radius[m] eps_r eps_i outer_radius[m]

Warning

The wire model is a thin cylindrical wire model. Some assumptions on radius \(a\) must hold for this model to apply:

  • \(a\) must be smaller than the size of the lineic elements \(h\): \(a \lt \frac{h}{10}\)

  • \(a\) must be smaller than the wavelength \(\lambda\): \(a \lt \frac{\lambda}{10}\)

  • \(a\) must not be too small either for numerical reasons: \(\frac{\lambda}{10^{5}} \lt a\)

ILLUMINATION

Frequency

ILLUMINATION
    FUNCTION:SINUS 1.0 1e9
    #FUNCTION:STEP 1.0 1e9 2e9 1e8
    #FUNCTION:10EXPSTEP 1.0 0 9 3
    #FUNCTION:FILE 1.0 frequencies.txt
END
Syntax:
FUNCTION:SINUS amplitude frequency[Hz]

FUNCTION:STEP amplitude frequency_min[Hz] frequency_max[Hz] frequency_step[Hz]

FUNCTION:10EXPSTEP amplitude exponent_min exponent_max number_per_decade

FUNCTION:FILE amplitude <list of frequencies file>

FUNCTION:FILE file format.

Warning

There can only be only one FUNCTION keyword.

Note

Amplitude is real and only used for plane waves only. It is recommended to keep this value to 1.0 and scale solutions during post-processing stages.

Plane Wave

ILLUMINATION
    PLANE_WAVE:LINEAR
        THETA 90. 135. 1.
        PHI   0. 10. 1.
        POLARIZATION:VERTICAL
    END
END
Syntax:
PLANE_WAVE:LINEAR
    THETA theta_min[°] theta_max[°] theta_step[°]
    PHI   phi_min[°]   phi_max[°]   phi_step[°]
    POLARIZATION:(VERTICAL|HORIZONTAL|VERTICAL&HORIZONTAL)
END

Note

Each PLANE_WAVE:LINEAR bloc defines a window which is made of the cartesian product of THETA and PHI angles. Each angle and polarization defines a RHS. A window thus defines \(N_{\text{polarization}} * N_\theta * N_\phi\) RHS.

Note

There can be several PLANE_WAVE:LINEAR blocs, defining as many windows.

Warning

Angle step should be strictly positive, even if angle_min = angle_max.

Punctual source

ILLUMINATION
    SPHERICAL_WAVE
        CENTER   1. 0. 0.
        VECTOR:1 0. 0. 1.
        VECTOR:2 1. 0. 0.
        DIRECTORY:SPHERICAL_WAVE ./
        FILE:SPHERICAL_WAVE farfield.diag
    END
END
Syntax:
SPHERICAL_WAVE
    CENTER   x[m]   y[m]   z[m]
    VECTOR:1 u_x[m] u_y[m] u_z[m]
    VECTOR:2 v_x[m] v_y[m] v_z[m]
    DIRECTORY:SPHERICAL_WAVE <diagram file repository>
    FILE:SPHERICAL_WAVE <diagram file>
END

FILE:SPHERICAL_WAVE file format.

Warning

The vectors VECTOR:1 and VECTOR:2 must be orthonormal.

Warning

For multiple frequencies the diagram file must contains as many diagram blocks as frequencies.

Note

Diagram files can be generated by anten.

Note

A punctual sources defines 1 RHS. There can be several SPHERICAL_WAVE blocs, defining as many RHS.

Binary file

ILLUMINATION
    FILE fileName.res 1. 0.
END

Warning

The binary files correspond to the d01 files defined in SOFTWARE:ASERIS_BE.

  • For the solver the binary files are the RHS for all the d01 files.

  • For PoR the binary files correspond to the sources d01, that is, all except the first one.

In both cases the order of the d01/res files must be respected.

Syntax:
FILE <binary res file> a_r a_i # a = complex amplitude

Elementary Dipole

ILLUMINATION
    DIPOLE:ELECTRIC
        CENTER 0.0 0. 0.
        VECTOR:1 0. 0. 1.
        AMPLITUDE -6.60948125e-07 2.27161875e-05
        MEDIUM 1
    END
END
Syntax:
DIPOLE:(ELECTRIC|MAGNETIC)
    CENTER   x[m]   y[m]   z[m]
    VECTOR:1 u_x[m] u_y[m] u_z[m] # moment
    AMPLITUDE a_r a_i # [Am] (electric) or [Vm] (magnetic) complex amplitude
    MEDIUM DOMAIN_ID # this line is optional: default is EXT domain
END

Warning

Make sure CENTER lies in the proper medium (see volumic domains).

Note

An elementary dipole defines 1 RHS. There can be several DIPOLE: blocs, defining as many RHS.

Dipoles array antenna

ILLUMINATION
    DIPOLE:FILE
        CENTER 5.0000E-01 5.0000E-01 5.0000E-01
        VECTOR:1 0. 1. 0.
        VECTOR:2 0. 0. 1.
        AMPLITUDE 1.0 0.0
        FILE list.dat
        MEDIUM 2
    END
END
Syntax:
DIPOLE:FILE
    CENTER   x[m]   y[m]   z[m]   # Center and vectors define a
    VECTOR:1 u_x[m] u_y[m] u_z[m] # transformation operator of
    VECTOR:2 u_x[m] u_y[m] u_z[m] # dipoles positions and moments
    AMPLITUDE a_r a_i # Scaling factor of all amplitudes
    FILE <list of elementary dipoles file>
    MEDIUM DOMAIN_ID # this line is optional: default is EXT domain
END

DIPOLE:FILE file format.

Warning

The vectors VECTOR:1 and VECTOR:2 must be orthonormal.

Warning

Make sure CENTER lies in the proper medium (see volumic domains).

Note

This defines a single RHS (the contributions of all dipoles are summed up).

Note

There can be several DIPOLE:FILE blocs defining as many RHS.

List of electric dipoles

ILLUMINATION
    DIPOLE:FILE_LIST
        FILE localization.txt
    END
END
Syntax:
DIPOLE:FILE_LIST
    FILE <list of electric dipole positions file>
END

DIPOLE:FILE_LIST file format.

Note

Each position in the file defines 3 electric dipoles, one for each moment along \(e_x\) \(ey\) and \(ez\), and had a 1 Am amplitude.

Note

Contrary to other DIPOLE: keywords, this yields many RHS. This is useful to compute the monostatic near field.

WAVEGUIDE

Rectangular waveguide

WAVESGUIDE
    TYPE:RECT
        CORNER 2. 0. 0.
        VECTOR:1 -2.0 0. 0.
        VECTOR:2 0.0 1.0 0.
        DIFFRACTED
            THRESHOLD 110%
        END
        INCIDENT
            MODE:TE 1 1
        END
        GENERIC_NAME msil500Hz_H_EXT_1
    END
END
Syntax:
TYPE:RECT
    CORNER   x[m] y[m] z[m] # corner/origin of the modal surface
    VECTOR:1 u_x[m] u_y[m] u_z[m] # modal surface basis vector 1
    VECTOR:2 v_x[m] v_y[m] v_z[m] # modal surface basis vector 2
    # waveguide can be either DIFFRACTED, INCIDENT or both
    DIFFRACTED
        # either
        THRESHOLD percentage% # w.r.t. waveguide cut-off frequency
        # or
        MODE:(TE|TM) M NMAX
        MODE:(TE|TM) M NMAX
        [..]
    END
    INCIDENT
        # same as DIFFRACTED sub-bloc
        [..]
    END
    GENERIC_NAME <basename of MODAL d01 file>
    FILE_VP spectre.dat # literally "spectre.dat", automatically filled by calcvp
END

Warning

The vectors VECTOR:1, \(\vec{v_1}=\vec{OA}\), and VECTOR:2, \(\vec{v_2}=\vec{OB}\), where \(O\) is the origin and \(A\) and \(B\) are other two corner points, must be orthogonal (not orthonormal) and such that \(\vec{e_1}\wedge\vec{e_2} = \vec{n}\) with \(\vec{e_1}\) and \(\vec{e_1}\) beeing the unit vectors of \(\vec{v_1}\) and \(\vec{v_2}\).

Warning

For a MODE:TE mode \(M \ge 0\) whereas for a MODE:TM mode \(M \gt 0\). We consider \(N\) from \(1\) to \(N_{\max}\) if \(M=0\) (mode (0,0) is discarded) else from \(0\) to \(N_{\max}-1\) if \(M\gt 0\).

Examples:

  • MODE:TE 0 4: (0, 1) (0, 2), (0, 3), (0, 4)

  • MODE:TE 1 1: (1, 0)

  • MODE:TE 3 2: (3, 0) (3, 1)

  • MODE:TM 1 4: (1, 0) (1, 1), (1, 2), (1, 3)

Warning

The mode index M refers to \(\vec{v_1}\) direction and N refers to \(\vec{v_2}\) direction.

Warning

The calcvp stage will automatically replace THRESHOLD by a list of MODE: lines in the file as well as the FILE_VP spectre.dat line. It will also produce the spectre.dat file.

Note

See input BEM model section to find GENERIC_NAME.

Coaxial waveguide

WAVESGUIDE
    TYPE:COAX
        CENTER 0.0 0.0 0.0
        INCIDENT
        DIFFRACTED
        GENERIC_NAME guideCoax_H_EXT_1
        INTENSITY:VALUE 1.0 0.0
    END
END
Syntax:
TYPE:COAX
    # waveguide used as emission and reception port
    CENTER x[m] y[m] z[m] # center of the modal surface
    INCIDENT
    DIFFRACTED
    GENERIC_NAME <basename of MODAL d01 file>
    INTENSITY:VALUE a_r a_i # complex scaling amplitude for the incident mode
END

TYPE:COAX
    # waveguide used as emission port only
    CENTER x[m] y[m] z[m] # center of the modal surface
    INCIDENT
    GENERIC_NAME <basename of MODAL d01 file>
    INTENSITY:VALUE a_r a_i # complex scaling amplitude for the incident mode
END

TYPE:COAX
    # waveguide used as reception port only
    CENTER x[m] y[m] z[m] # center of the modal surface
    DIFFRACTED
    GENERIC_NAME <basename of MODAL d01 file>
END

Note

There is only one implicit TEM mode for a coaxial waveguide, hence INCIDENT and DIFFRACTED are just keywords.

LOCAL_VALUES

A local value name starts with G_. It is a local model attached to a degree of freedom. A local value is also called a generator.

LOCALS_VALUES
    VOLTAGE_SOURCES:PASSIVES
        1 G_1
    END
    VOLTAGE_SOURCES:OPENED
        2 G_2
    END
    VOLTAGE_SOURCES:ACTIVES
        3 G_3      REAL                          0.00E+00 0.00E+00 1.00E+20   1.00 0.00
        4 G_PORT_4 COMPLEX                       5.00E+01 0.00E+00            1.00 0.00
        7 G_7      IMPEDANCE:FREQUENCY_FILE      imp.txt                      1.00 0.00
        8 G_8      FEM:FREQUENCY_FILE            50.0 0.0                     emf.txt
        9 G_9      IMPEDANCE_FEM:FREQUENCY_FILE  imp.txt                      emf.txt
    END
    IMPEDANCES:LOCALS
        5  G_5  REAL                      0.00E+00 0.00E+00 1.00E+20
        6  G_6  COMPLEX                   5.00E+00 0.00E+00
        10 G_10 IMPEDANCE:FREQUENCY_FILE  imp.txt
    END
 END
Syntax:
VOLTAGE_SOURCES:(PASSIVES|OPENED)
    LV_ID LV_NAME
END

VOLTAGE_SOURCES:ACTIVES
    LV_ID LV_NAME REAL R[Ohm] L[H] C[C] E_r[V] E_i[V]
END

VOLTAGE_SOURCES:ACTIVES
    LV_ID LV_NAME COMPLEX Zg_r[Ohm] Zg_i[Ohm] E_r[V] E_i[V]
END

VOLTAGE_SOURCES:ACTIVES
    LV_ID LV_NAME IMPEDANCE:FREQUENCY_FILE <frequency dependent impedance file> E_r[V] E_i[V]
END

IMPEDANCE:FREQUENCY_FILE file format.

VOLTAGE_SOURCES:ACTIVES
    LV_ID LV_NAME FEM:FREQUENCY_FILE Zg_r[Ohm] Zg_i[Ohm] <frequency dependent electromotive force file>
END

FEM:FREQUENCY_FILE file format.

VOLTAGE_SOURCES:ACTIVES
    LV_ID LV_NAME IMPEDANCE_FEM:FREQUENCY_FILE <frequency dependent impedance file> <frequency dependent electromotive force file>
END

IMPEDANCES:LOCALS
    LV_ID LV_NAME REAL R[Ohm] L[H] C[C]
END

IMPEDANCES:LOCALS
    LV_ID LV_NAME COMPLEX Zg_r[Ohm] Zg_i[Ohm]
END

IMPEDANCES:LOCALS
    LV_ID LV_NAME IMPEDANCE:FREQUENCY_FILE <frequency dependent impedance file>
END

Warning

A port is a generator containing _PORT_ in its name (e.g. G_PORT_4). It must be declared as an active source in the VOLTAGE_SOURCES:ACTIVES bloc and have a non 0 electromotive force |E|>0. Use COMPLEX format in that case as impedance and electromotive force will be changed by post-processing stages.

OBSERVATION

Monostatic RCS

OBSERVATION
    FAR_FIELD
        POSITIONS:MONOSTATIC
        INFORMATIONS
            NORM:LOGARITHMIC
        END
    END
END
Syntax:
FAR_FIELD
    POSITIONS:MONOSTATIC
    INFORMATIONS
        (NORM:LOGARITHMIC|NORM:LINEAR|COMPLEX)
    END
END

Note

RCS is defined by \(\sigma := 4\pi|E_s^\infty|^2\) assuming normalized incidence.

Warning

The plane wave bloc must be defined.

Warning

NORM: format provide RCS \(\sigma\) while COMPLEX format provides far field \(E_s^\infty\).

Bistatic RCS

OBSERVATION
    FAR_FIELD
        POSITIONS:BISTATIC
            THETA 90.0 135.0 1.0
            PHI    0.0  10.0 1.0
            POLARIZATION:VERTICAL
        END
        INFORMATIONS
            NORM:LOGARITHMIC
        END
    END
END
Syntax:
FAR_FIELD
    POSITIONS:BISTATIC
        THETA theta_min[°] theta_max[°] theta_step[°]
        PHI   phi_min[°]   phi_max[°]   phi_step[°]
        POLARIZATION:(VERTICAL|HORIZONTAL|VERTICAL&HORIZONTAL)
    END
    INFORMATIONS
        (NORM:LOGARITHMIC|NORM:LINEAR|COMPLEX)
    END
END

Monostatic near field

OBSERVATION
    NEAR_FIELD
        POSITIONS:MONOSTATIC
    END
END

Warning

At least one electric elementary dipole bloc or the dipole file list bloc must be defined.

Warning

The output is always in COMPLEX format.

OPTIONS

Ground and symmetry

Warning

Ground and symmetries are not supported with PoR.

OPTIONS
    ELECTROMAGNETICS
        SYMMETRY:Y WALL:ELECTRIC&MAGNETIC
        SYMMETRY:X WALL:ELECTRIC
    END
END

OPTIONS
    ELECTROMAGNETICS
        GROUND_PLANE:Z
    END
END
Syntax:
SYMMETRY:(X|Y|Z) WALL:(ELECTRIC&MAGNETIC|ELECTRIC|MAGNETIC)

GROUND_PLANE:(X|Y|Z)

Note

For geometric symmetries, use both E-Wall and H-wall conditions: WALL:ELECTRIC&MAGNETIC.

Warning

Maximum 2 symmetry planes or one ground plane is allowed.

Warning

Symmetries are always defined on \(X=0\), \(Y=0\), or \(Z=0\) planes.

Multiport

OPTIONS
    MULTIPORT
        ZG 10.0 1.0
    END
END
Syntax:
ZG Z_r[Ohm] Z_i[Ohm]

Note

Overrides impedance values of PORTS in the VOLTAGE_SOURCES:ACTIVES bloc.