leaky wave

The strain vector for leaky wave in fluid affected by boundary [GAMMA]1 is

Jakoby, "Dynamic beam steering properties of an electrically tuned liquid crystal based CRLH leaky wave antenna," in Proceedings of the 2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics, METAMATERIALS 2014, pp.

In this case radiation is mainly due to a TE cylindrical leaky wave propagating radially; by increasing the substrate thickness it can be shown that the attenuation constant of the leaky wave is reduced, so that the amplitudes of the incident wave and that of the associated reflected wave at the outer edge are not negligible, resulting in a reduced accuracy of the PO approximation (notably, in the main-beam region).

F., "Forward and backward leaky wave radiation with large effective aperture from an electronically tunable surface," IEEE Trans.

The periodically structured rings into a dielectric rod create a perturbation in the guided electromagnetic waves, in such a way, the proposed ring based behaves as a leaky wave antenna, in which the energy is gradually radiated through the slots to the air, as it propagates into the cylindrical dielectric.

Both of them are short tapered leaky wave antennas embedded with the CSRR structure.

A leaky wave antenna is substantially a waveguide-type structure that leaks out power all along its length due to the existence of a fast travelling wave.

Huynen, "Investigation of metamaterial leaky wave antenna based on complementary split ring resonators," Proceedings of the 39th European Microwave Conference, EuMC 2009, 209-212, Rome, Italy, Sep.

Zehentner, et al., "Spurious Leaky Mode Solutions and Experimental Verification of the Second Leaky Wave," IEEE International Digest Symposium, April 1999, Anaheim, CA, pp.

In [68], it has been demonstrated that a cylindrical surface wave can be transformed into a modulated cylindrical backward leaky wave by a quasi-uniform array of double slots.

This termination should be normal to the direction of propagation of the leaky wave to avoid refractions; however some reflection will occur depending on the mismatch of the dielectric slab with respect to free space.

Particularly, when the MTM is applied to antenna designs, CRLH-line cells are periodically arrayed to make leaky wave antennas or resonant ones [3-6].