Yatpac - The Ultimate Open Source TLM Simulation Package
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Bowtie Antenna
1. Example Description
In the following example, a Bowtie antenna is simulated, Fig. 1. The length of the Bowtie antenna is 200mm and the flare angle is 90 degree.;void('');)
Fig. 1: The geometry of the Bowtie antenna.
2. TLM model
The bowtie structure, excitation-type and simulation setup are given in the TLM model file I3D.bowtie.
The structure is excited with a Gaussian signal. The source type is a lumped voltage source at the input terminals. Absorbing boundary conditions are used at the boundaries of the simulation domain.
3. Simulation Results
3.1 Input Impedance
Having the knowledge of the voltage and current at the input terminals, we can compute the input impedance of the antenna and it is shown in Fig. 2.;void('');)
Fig. 2: Input impedance of the bowtie antenna.
3.2 Electromagnetic Field Visualization
The electric field intensity near to the antenna is shown in Fig. 3.;void('');)
Fig. 3: The electric field intesity distribution near to the bowtie antenna at the time step n=230.