Dielectric-Loaded TM01-TE11 Mode Converters for Wideband Applications

被引：4
|
作者：
Honari, Mohammad Mahdi [1 ]
Mirzavand, Rashid [1 ]
机构：
[1] Univ Alberta, Elect & Mech Engn Dept, IWT Lab, Edmonton, AB T6G 2R3, Canada
来源：
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2021年 / 31卷 / 01期
基金：
加拿大自然科学与工程研究理事会;
关键词：
Bandwidth; Feeds; Antenna radiation patterns; Wireless communication; Circular waveguides; Wideband; Permittivity; Dielectric-loaded; TM₀ ₁ -TE₁ mode converters; wideband;
D O I：
10.1109/LMWC.2020.3034052
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this letter, a new wideband dielectric-loaded TM01-TE11 mode converter is proposed. It is shown that a new hexagon metallic sheet (HMS) placed in the middle of a circular waveguide has a lower reflection of the TM01 mode compared to a rectangular metallic sheet. Using such HMS in the structure of dielectric-loaded TM01-TE11 mode converters can enhance the operational bandwidth significantly. Four cases of mode converters with/without the HMS are designed and evaluated. The results demonstrate a noticeable bandwidth enhancement for the structure with HMS. Using the proposed structure, an excellent operational bandwidth of 25.4% is achieved. The proposed mode converters were 3-D printed and the mode conversion was verified by measuring the far-field radiation patterns.
引用
收藏
页码：5 / 8
页数：4
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