Locally Resonant Cavity Cell Model for Meandering Slotted Electromagnetic Band Gap Structure

Abstract

This letter utilizes a simple locally resonant cavity cell (LRCC) model to provide an insight into the physical mechanism and the relationship between locally resonant modes and surface-wave suppression band-gaps of the proposed meandering slotted electromagnetic band-gap (MSEBG) structure. The MSEBG structures have two surface-wave suppression band-gaps that are separately yielded by cross slots and meandering slots. It was proved that the cross slots and the meandering slots produced two different groups of monopolarized (MP) degenerate modes whose corresponding frequencies located within the two surface-wave suppression band-gaps. The dual-band MSEBG structure was fabricated, and an experimental verification was conducted by surface-wave band-gap measurement using a pair of shield loops. By adjusting the dimension of meandering slot, we can design a dual-band-gap EBG structure effectively.Index Terms-Dual-band, locally resonant cavity cell (LRCC), meandering slotted electromagnetic band-gap (MSEBG), surfacewave suppression band-gap.

Accurate Characterization of Electromagnetic Band-Gap Structures

“…The performance of the proposed method is compared to other methods through the EBG characterization results and the provided distinctive information. The first method represents methods based on information of the suppressed transmission magnitude and the reflection phase limits [26][27][28]32]. This method uses the in-phase reflection (between +90° and −90°) and the transmission coefficient obtained from EBG cell modeling.…”

“…Following that, several simple and accurate circuit models to predict EBG behavior were presented in [24,25]. Moreover, the resonant cavity model [26,27] and the transmission line model [28] are used in EBG modeling. Besides circuit models and transmission line models, the spectral domain analysis method [29] and the plane-wave expansion method [30] are used for EBG analysis.…”

“…In general, these studies show that the transmission magnitude has low values outside the band-gap region determined by the phase of the reflection coefficient. These methods represent schemes based on the information of the suppressed transmission magnitude and the reflection phase limits [26][27][28][29][30][31][32][33][34]. A recent method for characterizing EBG structures is based on calculating the dispersion diagram of multiple modes (eigenmode method) [6][7][8].…”

RF MEMS Based Reconfigurable Rectangular Slotted Self Similar Antenna

“…To overcome this problem the High Impedance Surface (HIS) like Electronic Band Gap (EBG) can be used which has unique characteristics like surface and standing wave suppression and in-phase reflection phase characteristics. EBG can be placed only at several tenths of wavelength between the antenna element and the ground plane for all operating frequency bands [25]- [28].…”