Experimental research on magnetic dipole characteristic of combined antenna

By the experimental research of combined antenna, the advantages of magnetic dipole loop were verified: the loop can improve greatly low-frequency characteristic of radiation and transmission, it has the ability of low-frequency compensation. Furthermore, setting the ratio of magnetic dipole loop circumference S/S0, we compared the antenna characteristic at different status of magnetic dipole loop, found that double magnetic dipole loop had better low-frequency improvement, and single magnetic dipole loop had more advantages at high frequency.We hereby designed a combined receiving antenna with operation frequency of 300 MHz~5 GHz and structure of single magnetic dipole loop.