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New in v15


V15


Linear Measurements

  • S-parameters of a mixed-mode circuit without the need for a transformer (Smm)
  • Series resistance of an RL circuit, with the unspecified port grounded (R_SRL2)
  • Determinant of a Y-matrix (Ydet)
  • Common Mode Rejection Ratio for mixed-mode S-parameters (CMRR)

Equation Functions

  • The same as amax and amin but per trace instead of all traces (amax1, amin1)
  • Converts a decimal number into a binary number represented by a vector of integers - intended for bit-driven switching in phase shifter designs (dec2binvect)
  • The difference between the maximum and minimum y values of a trace in a moving window - intended for looking at ripple in a filter design (deltawin)
  • Various mathematical functions including exponents, logarithms, error functions, rounding, and gamma functions (expm1, log1p, erf, erfc,trunc, tgamma, lgamma)

Linear Stability Measurements

  • Complex envelope of all loop gain plots in the complex plane with all possible passive terminations (LoopGainEnv)
  • Measure proximity to the marginally stable condition in terms of open-loop gain magnitude (GainMrgnEnv)
  • Proximity to instability in terms of open-loop gain angle (PhMrgnEnv)

NonLinear Stability Measurements

  • Complex envelope of all loop gain plots in the complex plane with all possible passive terminations when driven with nonlinear sources (NLLoopGainEnv)
  • Measure proximity to the marginally stable condition in terms of open-loop gain magnitude when driven with nonlinear sources(NLGainMrgnEnv)
  • Proximity to instability in terms of open-loop gain angle when driven with nonlinear sources (NLPhMrgnEnv)

Antenna Measurements

  • Efficiency Radiation, mismatch, or total efficiency (Electromagnetic\Antenna group)
  • Angle of maximum radiation intensity of the E-field for various polarizations or components of the E-field (SF_Peak_Angle_EPhi, SF_Peak_Angle_ETheta, SF_Peak_Angle_ETheta, SF_Peak_Angle_RHCP, SF_Peak_Angle_TPwr)
  • Peak value of maximum radiation intensity of the E-field for various polarizations or components of the E-field (SF_Peak_EPhi, SF_Peak_ETheta, SF_Peak_LHCP, SF_Peak_RHCP, SF_Peak_TPwr)
  • Angle of maximum radiation intensity of the E-field for various polarizations or components of the E-field as excited by a circuit schematic (SF_Peak_Angle_EPhi_CKT, SF_Peak_Angle_ETheta_CKT, SF_Peak_Angle_LHCP_CKT, SF_Peak_Angle_RHCP_CKT, SF_Peak_Angle_TPwr_CKT)
  • Peak value of maximum radiation intensity of the E-field for various polarizations or components of the E-field as excited by a circuit schematic (SF_Peak_EPhi_CKT, SF_Peak_ETheta_CKT, SF_Peak_LHCP_CKT, SF_Peak_RHCP_CKT, SF_Peak_TPwr_CKT)

Annotations/Other Measurements

  • Improved EM current annotation that allows control of the scaling of the displayed fields (EM_CURRENT_EX)
  • The number of components in a synthesized network (CompCount)
  • Annotate the characteristic impedance on a System Diagram (Z0)
  • Identify blocks on a system diagram that operate above their defined damage level; numerically shows how far beyond damage level the device is operating (C_DAMAGE)

Circuit/Schematic Models

  • Harmonic balance tuner and bias TEE with N-harmonic specifications (HBTUNER3)
  • Transformer with center tap that accounts for inductance of the primary winding and magnetic flux leakage (XFMRTAP3)

VSS Models

  • 5G NR library containing TX and RX models for downlink and uplink operation in FR1 and FR2 bands. Standard downlink test models are also included in the library, along with a number of test benches to help jump-start design/analysis work
  • 5G NR frame assembler and disassembler for downlink and uplink (NR_DL_FRMASM, NR_DL_FRMDASM, NR_UL_FRMASM, NR_UL_FRMDASM)
  • New analog-to-digital converter that generates both the digital and the quantized signals (ADC2)
  • Digital pre-distortion block that implements several algorithms (DPD)
  • Updated amplifier model can now handle all supported data file formats for nonlinear devices (AMP_F)
  • Switch model that can automatically route signals based on their frequency and can simplify design of filter banks (RFSW_FRQ)

V14


Models

  • CMC model library
  • File-based generalized MDIF N-port model (NPORT_F_MDIF)
  • Multi-layer microstrip elements (MMTEE, MMCROSS, MMDRSTUB, MMICAP)
  • Higher layer count generalized multi-layer substrate lines (GMxxCLIN)
  • Envelope simulation sources (PORT_SRC_ENV, AC_I_ENV, AC_V_ENC)
  • Dynamic slot coupled line model (RCCOAX2)

VSS Models

  • 5G, LTE, and generic spatial modeling (5G_CHANNEL, WINNER_II, SPATIALCHANNEL)
  • LDPC code support for DVB_S2 standard (LDPC_DVB_ENC/DEC)
  • Streamlined data encoding/decoding (LTE_CONFIG, LTE_MAP, LTE_CDBLKSEGMT/LTE_CDBLKCMB, LTE_RTMATCH2/LTE_RTDMATCH2)
  • Simplify complex phased array system diagrams (BUS2MUX/MUX2BUS, BUS2SER/SER2BUS, BUS_SPLITTER, PHARRAY_RXSIG_BUS, PHARRAY_SHFTR)
  • Misc improvements (RF_START_NS, RFBPATH, LIN_MDIF, LIN_F2)

Linear Measurements

  • Y parameters at a single port of a network (YParams)
  • Network terminated s-parameters (S_TERM, S_TERM_Z, S_TERM_2P)
  • Linear loop gain (LoopGain)
  • Impedance measured with a modified gamma-probe (Z_GP2)

Nonlinear Measurements

  • Nonlinear Loop Gain (NLLoopGain)

Load Pull Measurements

  • Dense gamma grid for marker use (GammaPts)
  • Minimum value of aligned data for generalized load pull data (G_LPCMMIN_EX_A)
  • Generalized load pull contours over any sweep from combined values (G_LPCM_EX_C2)
  • Generalized load pull contours over any sweep from combined values at an aligned value (G_LPCM_EX_C2A)
  • Generalized interpolated load pull aligned data points (G_LPINT2_A)
  • Same as G_LPINT2 but with a specified impedance (G_LPINT2_Z)
  • Same as G_LPINT2_A but with a specified impedance (G_LPINT2_ZA)
  • Convex Hull of Interpolated Points (G_LPCH)
  • Interpolated Points on the Interpolated Grid (G_LPGG)

VSS Measurements

  • Node gain compression (GC_node)
  • Linear deviation from phase (LDVP_node)
  • Voltage at frequency (V_FREQ)

V13


Models

  • N-Port negation element (NEG)
  • Circuit Envelope Ports (PORTIQ_ENV and PORTMOD_ENV)

3D EM Parts

  • Copper pillar pump (CU_PILLAR)
  • MMIC substrate with bond pags (MMIC_3D)
  • Solder trace (SOLDER_BLOB)
  • Solder joint fillet (SOLDER_FILLET)

Linear Measurements

  • Network terminated s-parameters (S_TERM)

Nonlinear Measurements

  • Available Power (PAvail)

Load Pull Measurements

  • Minimum value for generalized load pull data (G_LPCMMIN_EX)
  • Aligned generalized load pull contours (G_LPCM_EX_A)
  • Aligned gamma points (G_LPGPM_A)
  • Dynamic load line from load pull data (G_LP_IVDLL)

Envelope Measurements

  • Spectrum @ carrier (Ispectrum_ENV, Vspectrum_ENV, Pspectrum_ENV)
  • Time domain at specified carrier (Itime_f_ENV, Vtime_f_ENV, Ptime_f_ENV)
  • Time domain (Itime_ENV, Vtime_ENV, Ptime_ENV)

Output File Measurements

  • Write Envelope Data (ENVELOPEF)

VSS Measurements

  • LTE RFmx measurements from NI RFmx Toolkits