发明名称 |
A-dielectrically-loaded antenna |
摘要 |
A dielectrically loaded backfire helical antenna has a cylindrical ceramic core and a feed structure which passes axially through the core to a distal end face of the core where it is connected to helical conductors located on the outside of the core. Opening out on the proximal end face of the core is a cavity which is coaxial with the feed structure. A conductive balun layer encircling a portion of the core extends over the proximal end face of the core and the wall of the cavity to connect the helical elements to the feeder structure when it emerges into the cavity. The presence of the cavity and accommodating some of the length of the balun in the cavity allows a reduction in the size and weight of a dielectrically loaded backfire antenna. |
申请公布号 |
US8279134(B2) |
申请公布日期 |
2012.10.02 |
申请号 |
US20050060215 |
申请日期 |
2005.02.17 |
申请人 |
WITHER DAVID MICHAEL;LEISTEN OLIVER PAUL;SARANTEL LIMITED |
发明人 |
WITHER DAVID MICHAEL;LEISTEN OLIVER PAUL |
分类号 |
H01Q1/36;H01Q1/24;H01Q11/08 |
主分类号 |
H01Q1/36 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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