Comparison experiments on hybrid and biconical/LPD antennas in radiated emission measurement below 1 GHz

In radiated emission measurement below 1 GHz, it is a common practice to use broadband antennas such as biconical antennas and LPD antennas. Another practice is to use hybrid antennas because they do not require replacement of the antenna throughout the frequency range below 1 GHz. While the use of a hybrid antenna at a 10 m distance is viewed as a viable option, its use at a 3 m distance is sometimes questioned because of technical issues. Comparison experiments in this paper aim to validate these issues and study the viability of hybrid antennas in radiated emission measurement below 1 GHz at a 3 m distance.