Magneto-inductive waveguide

Thin-film magneto-inductive cables

“…One example of a simple metamaterial is the magneto-inductive (MI) waveguide [9], sometimes called a metasolenoid [10,11]. The resonant element is a simple L-C circuit, which is magnetically coupled to its neighbours by a mutual inductance M as shown in configurations, in which M is positive and negative, respectively.…”

Transmission Properties of Stacked SRR Metasurfaces in Free Space

“…The SRRs metasurfaces displayed in Figure 1(a) were fabricated with a total size of 200 mm × 200 mm (25 × 25 elements), see Figure 1(b). The free space transmission measurements were performed using an Agilent 8722ES vector network analyzer and different microwave standard horn antennas to cover the frequency bandwidth (3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20). The distance between horn antennas is maintained at 500 mm.…”

“…Owing to those landmark properties, i.e., negative permeability and subwavelength dimension, the SRR has been recently the subject of intensive research activities [2][3][4] either for designing negative refractive index medium notably with the addition of metallic wires [2], compact microwave planar circuits [3] or perfect lens [4]. Moreover, the SRR is found to support the propagation of the so-called magnetoinductive waves (MIWs) [5][6][7][8] at the quasistatic resonance when nearest-neighbor coupling is included in the analysis of arrays of SRRs. It is found that MIWs in the axial configuration are forward waves with the phase and group velocities in the same direction, that is, right-handed propagation.…”

Rotational resonance of magnetoinductive waves: Basic concept and application to nuclear magnetic resonance

“…Due to the magnetic coupling between the elements, the waves propagating along the latter structure have been termed magnetoinductive ͑MI͒ waves. 16 The simplest explanation of their properties is in terms of nearest neighbor interactions analogous to the classical description of acoustic waves in crystals. 17 A more detailed analysis of MI waves 18 was followed by experiments on capacitively loaded loops and Swiss rolls.…”