On study of the short conductor line used in the simulation of the reconfigurable antenna

In the use of the re-configurable antennas, the switching tube is used. In the simulation of the re-configurable antenna, the calculation cost is large. In this paper, the serials stub is used instead of the switch on. The current on the antenna oscillator using the stub and the switching tube is simulated. The comparing result between the stub and the switching tube is given at the same time.