Miniaturized Cavity Resonator Supporting Both Electromagnetic Resonances and Magneto-Inductive Resonances

Author

Xiang Wan ; Hui Feng Ma ; Wei Xiang Jiang ; Ben Geng Cai ; Qiang Cheng ; Tie Jun Cui

Author_Institution

State Key Lab. of Millimeter Waves, Southeast Univ., Nanjing, China

Volume

12

fYear

2013

fDate

2013

Firstpage

108

Lastpage

111

Abstract

We present a miniaturized cavity resonator by embedding double split-ring resonators (DSRRs) in a conventional substrate integrated waveguide (SIW) cavity. Apart from the electromagnetic wave in the cavity, an induced current wave referred to as a magneto-inductive wave is also supported by the periodic array of DSRRs due to the mutual coupling. As a result, the proposed cavity resonator supports both electromagnetic resonances and magneto-inductive resonances, and the lowest resonant frequency of each kind of resonance is lower than that of the conventional cavity. This can help to reduce the size of cavity resonators. The measured results agree well with the simulated results.

Keywords

cavity resonators; substrate integrated waveguides; double split-ring resonators; electromagnetic resonances; electromagnetic wave; induced current wave; magneto-inductive resonances; magneto-inductive wave; miniaturized cavity resonator; periodic array; resonant frequency; substrate integrated waveguide cavity; Arrays; Cavity resonators; Electromagnetic waveguides; Magnetic resonance; Metamaterials; Q factor; Substrates; Double split-ring resonators (DSRRs); electromagnetic (EM) resonances; magneto-inductive (MI) resonances; substrate integrated waveguide (SIW);

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2013.2243399

Filename

6422321