Antenna is the interface between radio waves propagating through space and electric currents moving in metal conductors, used with a transmitter or receiver.
Antenna
distributed antenna system for the enterprise
microstrip antenna for DTH application.
Antenna Andrew dscription
Full description
Antenna isolation calculation
Antennas, Small Antennas
Antenna and Antenna Array Simulation Simulati on CST MICROWAVE STUDIO®
Outline
Antenna simulation Different solvers for different antennas
Antenna array simulation
Small arrays
Feed networks
Large arrays
Active element pattern
Online demo
Outline
Antenna simulation Different solvers for different antennas
Antenna array simulation
Small arrays
Feed networks
Large arrays
Active element pattern
Online demo
A small selection...
Antenna Simulation
Different antenna types require different solver technologies.
Transient ransient Solv Solver er
PBA meshing
Broadband
Linear memory
GPU acceleration
Frequency Solver
Single frequency
Electrically Small
Tetrahedral mesh
Multiple ports
8 balun fed dipoles
Integral Integral Equation Solver
Surface mesh
(Iterative) MOM
MLFMM method
Outline
Antenna simulation Different solvers for different antennas
Antenna array simulation
Small arrays
Feed networks
Large arrays
Active element pattern
Online demo
Antenna Arrays
Small arrays
Large arrays
www.navsys.com/Products/hagr.htm
www.macomtech.com/Markets/AerospaceDefense
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Small Arrays 1
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2 1
2
6
6
3 3 5
5
4 4
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Distributed Computing (DC)
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Port 1 CST STUDIO SUITE™ frontend
Port 2 n o i t c k r e o n n w o t c e r n e t n i
Port 3 Port 4 Port 5 Port 6 Port 7
Multiple ports, frequency points, and parameter values.
Multiple Element Excitation
Simultaneous excitation
one simulation,
one combined farfield.
Combine results
multiple simulations,
any combination of farfields.
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Array Feeding Networks
Full simulation
CST DS
Large Arrays 1. Simulate Simulate full fu ll array. array. 2. Simulate unit cell.
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Infinite Array
Most elements have the same pattern.
Edge elements have less influence. Edge elements
Interior elements
Infinite Array
Single element multiplied by array factor good approximation of large finite array behaviour.
Array Factor
Farfi arfiel eld d Arr Array
Array Factor
Main lobe steered to 0°
Main lobe steered to 30°
25 x 25 Array Factor
Main lobe steered to 45°
Infinite Array
Scan blindness!
“Active element pattern”
Unit cells
coupling to Floquet port modes.
Active Element Pattern
0D Template Based Post processing macro
Total reflection at 45 degrees
No radiation at 45 degrees
Finite Array Analysis
Finite array results
infinite array results
5 5 15 15 25 25 infinite
Outline
Antenna simulation Different solvers for different antennas
Antenna array simulation
Small arrays
Feed networks
Large arrays
Active element pattern
Online demo
CST Array Wizard Wizard
Summary Complete Technology is essential for array design!
