* '''[[FDTD_Observable_Types#Probing_Fields_in_Time_and_Frequency_Domains|Field Probe]]''' for monitoring E- and H-field components at a fixed location in both time and frequency domains.
* '''[[FDTD_Observable_Types#Frequency-Domain_Near_Field_Visualization|Field Sensor]]''' for monitoring E- and H-field components on a cross section of the computational domain in both time and frequency domains.
* '''[[FDTD_Observable_Types#Far_Field_Calculations_in_FDTD|Far -Field Radiation Pattern]]''' for monitoring the radiation behavior of your structure.* '''[[FDTD_Observable_Types#Radar_Cross_Section|Far -Field RCS]]''' for monitoring the scattering behavior of your structure.
* '''[[FDTD_Observable_Types#Scattering_Parameters_and_Port_Characteristics|Port Definition]]''' for calculating the S/Y/Z [[parameters]] and voltage standing wave ratio (VSWR).
* '''[[#Exciting_Periodic_Structures_Using_Plane_Waves|Periodic Characteristics]]''' for calculating the reflection and transmission coefficients when your periodic structure is excited by a plane wave source.