Abstract

Broadband horn antenna has been widely used in the EMC measurement, radar and communication system. EMC measurement usually uses standard gain horn antennas. But in practical, for example, it requires 8 standard antennas to test 0.75-18 GHz, which makes the space efficiency of the darkroom reduced. To solve this problem, a 0.7 ~ 18 GHz double-ridged horn antenna is designed and exhibits improved performance in terms of gain, VSWR, and radiation pattern. and the radiation patterns maintain a single main lobe in full band. This denotes that the designed antenna can fulfill higher demands. The fabricated antenna now has been applied to many related field.

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