Invention Grant
- Patent Title: End-fed sleeve dipole antenna comprising a ¾-wave transformer
- Patent Title (中): 包括¾波变压器的端馈套偶极天线
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Application No.: US13015280Application Date: 2011-01-27
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Publication No.: US08593363B2Publication Date: 2013-11-26
- Inventor: James McLean , Kunio Yata , Robert Sutton , Hidetsugu Sakou , Nobutaka Misawa
- Applicant: James McLean , Kunio Yata , Robert Sutton , Hidetsugu Sakou , Nobutaka Misawa
- Applicant Address: JP Chiba
- Assignee: TDK Corporation
- Current Assignee: TDK Corporation
- Current Assignee Address: JP Chiba
- Agency: Daffer McDaniel LLP
- Agent Kevin L. Daffer
- Main IPC: H01Q9/16
- IPC: H01Q9/16

Abstract:
An end-fed sleeve dipole is provided herein with improved impedance match and increased bandwidth by incorporating a ¾-wavelength transformer in the antenna design. The ¾-wavelength transformer is compatible with a number of different choking schemes, including but not limited to, a single ¼-wave choke sleeve, a single ¼-wave choke sleeve with additional ferrite beads, and two or more ¼-wave choke sleeves with or without ferrite beads. In some embodiments, one or more shunt resonators may be used to provide additional impedance compensation.
Public/Granted literature
- US20120194401A1 End-Fed Sleeve Dipole Antenna Comprising a 3/4-Wave Transformer Public/Granted day:2012-08-02
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