Design of the directional horn-shaped planar antenna used for wireless mouse online test

Abstract

In mass production, the RF performance of wireless devices must be tested online. The directional capability of the antenna can be used to reduce the mutual interference between the testing systems. This paper designed a planar antenna for the above application. The planar horn-shaped structure is applied on the antenna to realize directional radiation and a ridge type slow-wave structure is introduced to reduce the antenna size. Simulation and measuring results meet well. The antenna has the advantages of good directivity, easy fabrication and low cost. So it has the potential to be applied to wireless device online test.