Example 26: Patch Antenna Array

Item	Settings
Solver	Electromagnetic Analysis [Hertz]
Analysis Type	Harmonic Analysis

Mesh tab, Harmonic analysis tab and Open boundary tab are set as follows.

Tab	Setting Item	Settings
Mesh Tab	Frequency-Dependent Meshing	Reference Frequency: 6x109 [Hz] Select [The conductor bodies thicker than the skin depth constitute the boundary condition].
Harmonic analysis	Sweep Type	Select [Linear Step by Division Number]
	Sweep Setting	Minimum: 5×109 [Hz] Maximum: 7x109 [Hz] Division: 100
	Sweep Setting	Select Fast sweep S-parameter Tolerance: 1x10-3
	Input	1.0 [W]
Open boundary	Type	Absorbing Boundary
Open boundary	Order of Absorbing Boundary	1st-order

Antenna pattern METAL is a sheet body created on a rectangle substrate SUBSTRATE.

It is covered with spherical air (AIR). Open boundary is set on the surface of AIR.

* Available from the material DB

Boundary Condition Name/Topology	Tab	Boundary Condition Type	Settings
Port_001/Face	Electric	Port	Reference Impedance: Select [Specify] and enter 50 [Ohm]. Number of Modes Number of Precalculated Modes: 5 Number of Modes Used in the Actual 3D Analysis: 1 Select Modes: None
Port_002/Face	Electric	Port	Same as Above.
Outer Boundary Condition	Electric	Open Boundary

S-parameter S11 is shown below.

The figure below shows the radiation pattern with the weighed input.

See the Field Superposition Setting for the detail.

See [[Simple Mode] Calculation of Electromagnetic Waves] or [[Detailed Mode] Calculation of Electromagnetic Waves] for display of radiation patterns.