Investigation for transmission characteristic of impedance matching network on short-wave antenna

In practical application, short-wave antenna is a narrow-band antenna. In order to make the antenna match well with the transmitter, it usually adopts the impedance matching network to feed power in the antenna. Although the impedance matching network is consisted of lossless component, the parasitic resistance of actual inductance will affect the transmission power. In order to correctly characterize the power fed in antenna, it established mathematical model of impedance matching network for short-wave antenna according to the theory of network. It also analyzed the behavior level simulation of the mathematical model with ADS, the results show that due to loss of matching network, the transmission power is about reduced by 10%.