Schematic Simulation with CST Studio Suite - Design Studio

1. Laboratory

Device 1: Rectangular waveguide open-end radiator

Device 2: A coaxial probe feeder in a rectangular waveguide

1) Simulate Device 1 and get S11.

2) Connect Device 1 with Device 2 with the schematic method.

3) Optimize d, h, L for |S11| < -20 dB at f = 14-20GHz

2. Homework

Device 1: Rectangular waveguide open-end radiator

Device 2: A multilayer impedance matching circuit

Use 2-fold symmetric in simulation.

1) Simulate Device 1 using the 2-fold symmetry in the structure. Get S11 and move the reference plane to the the aperture.

2) Connect Device 1 with Device 2 with the schematic method.

3) Optimize L1, L2, L3, L4, εr1, εr2 for |S11| < -20 dB at f = 14-19GHz using the 2-fold symmetry in the structure.

3. References

[1] Introduction to CST Schematic Tool - CST Microwave Suite Algebraic Solver and Models

https://www.youtube.com/watch?v=u415Q417neQ

[2] Lumped Element Pi and T Impedance Matching in CST Schematic Tool

https://www.youtube.com/watch?v=ar_V0_kt3dA

[3] Single and Double Stub Impedance Matching - No Printed Smith Chart NEEDED! CST Schematic Tool

https://www.youtube.com/watch?v=ZwR6xdKK0o8

[4] Ultra Fast Microstrip Transmission Line Solver with 1s Computational Time in CST Schematic Tool

https://www.youtube.com/watch?v=aHQBFdhA-Bs

[5] EM/circuit co-simulation overview, http://www.mweda.com/cst/cst2013/mergedProjects/CST_MICROWAVE_STUDIO/special_dslink/ds_link.htm#Schematic_View

[6] Manko, "Electromagnetic simulation of low-pass birdcage coil", CMES'18

[7] Simulia, "CST Design Studio(tm) technical specification"

4. Exercise Problems

To be added.