Compact paper-substrate rat-race coupler deploying modified stepped impedance stub and interdigitated slot resonator for wide-band harmonic suppression

被引：9
|
作者：
Velan, Sangeetha [1 ]
Kanagasabai, Malathi [1 ]
Pakkathillam, Jayaram Kizhekke [1 ]
Palaniswamy, Sandeep Kumar [1 ]
机构：
[1] Anna Univ, Dept Elect & Commun Engn, Coll Engn, Madras 600025, Tamil Nadu, India
来源：
IET MICROWAVES ANTENNAS & PROPAGATION | 2016年 / 10卷 / 15期
关键词：
harmonics suppression; UHF resonators; waveguide couplers; UHF couplers; substrate integrated waveguides; compact paper-substrate rat-race coupler; modified stepped impedance stub; interdigitated slot resonator; wide-band harmonic suppression; ultra-wide stop-band effect; slow-wave effect; size reduction; signal transmission; substrate deformation steps; flexible electronics applications; frequency; 0; 72; GHz; HYBRID; ANTENNA;
D O I：
10.1049/iet-map.2016.0057
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：
This study presents the design of a flexible compact rat-race coupler operating at 0.72 GHz on a 1 mm thick paper substrate. The ultra-wide stop-band effect caused due to the combination of the modified stepped impedance stub and the interdigitated resonator slot, offers suppression up to the 14th harmonic. The slow-wave effect caused due to the resonator slot leads to 59.6% size reduction compared with the conventional coupler at the design frequency. The signal transmission through the coupler for different substrate deformation steps has been investigated. Stable responses are reported for the same, making the prototype suitable for flexible electronics applications.
引用
收藏
页码：1667 / 1672
页数：6
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