A wearable antenna assembly incorporates a coplanar waveguide feed in one of the arms of a two-arm spiral antenna. The antenna has relatively high impedance compared with the feed line from a suitable radio but the coplanar waveguide feed is simply modified to provide a quarter-wave transformer adjacent to the feed connection to the antenna and at least one further impedance transformation step on a tangential extension of the feed at the outer edge of the spiral antenna.
申请公布号
US2013093633(A1)
申请公布日期
2013.04.18
申请号
US201113702328
申请日期
2011.06.29
申请人
HENDERSON ROBERT IAN;MATTHEWS JAMES CHRISTOPHER GORDON;BAE SYSTEMS PC
发明人
HENDERSON ROBERT IAN;MATTHEWS JAMES CHRISTOPHER GORDON