Invention Grant
- Patent Title: Dielectrically-loaded antenna
- Patent Title (中): 负载天线
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Application No.: US12584663Application Date: 2009-09-09
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Publication No.: US08279135B2Publication Date: 2012-10-02
- Inventor: David Michael Wither , Oliver Paul Leisten
- Applicant: David Michael Wither , Oliver Paul Leisten
- Applicant Address: GB Wellingborough
- Assignee: Sarantel Limited
- Current Assignee: Sarantel Limited
- Current Assignee Address: GB Wellingborough
- Agent John Bruckner, PC
- Priority: GB0424980.1 20041111
- Main IPC: H01Q1/36
- IPC: H01Q1/36

Abstract:
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.
Public/Granted literature
- US20100001920A1 Dielectrically-loaded antenna Public/Granted day:2010-01-07
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