Example26 Patch Antenna Array

General

Item	Settings
Solvers	Electromagnetic Analysis [Hertz]
Analysis Type	Harmonic analysis
Options	Select “Ignore the influence of face/edge electrode thickness”.

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

Tab	Setting Item	Settings
Mesh Tab	Frequency-Dependent Meshing	Reference frequency: 7.5×10^10[Hz] Select “The conductor bodies thicker than the skin depth constitute the boundary condition.”
Harmonic analysis	Frequency	Minimum: 5×10^9[Hz] Maximum: 7×10^9[Hz]
	Sweep Type	Select Linear step Division number: 100
	Sweep Setting	Select Fast sweep S-parameters variation: 1×10^-3
	Input	1.0[W]
Open boundary	Type	Absorbing boundary
Open boundary	Order of Absorbing Boundary	1st degree

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	I/O Port	Reference Impedance: Select “Use the characteristic impedance calculated from the port structure” Number of Modes Number of precalculated modes: 5 Number of modes used in the actual analysis: 1 Select modes: none
Port_002/Face	Electric	I/O 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 [Exercise 7: Dipole Antenna] for the details of the radiation patterns and settings.