Some properties of waveguides with periodic structure

Geometrically progressive stub loading scheme for miniaturization of transmission line‐based components

“…Thus, it is apparent that reducing the physical length of transmission line in any circuit will exhibit reduction in overall circuit layout size. Several miniaturization techniques have been proposed in past to fulfill this objective as mentioned below. Meandered line structure introduces bends in the transmission line in a manner such that the circuit area is efficiently utilized .…”

“…Out of these miniaturization techniques, one promising approach is slow wave structure (SWS) which is based on periodic loading of transmission line. In this case, the transmission line is loaded with shunt capacitive loads (or series inductive loads) in a periodic manner, which increases the effective electrical length of the line.…”

Frequency Selective Properties of Coaxial Transmission Lines Loaded with Combined Artificial Inclusions

“…The initial applications of artificial dielectrics and periodic structures, for the implementation of lenses to enhance radar technology [1], evolved to photonic bandgap and electromagnetic bandgap structures from the Infrared frequency range [2] and scaled to the RF and microwave frequency range [3, 4]. In the late 90s, the split ring resonator (SRR) was proposed as an element with a strong magnetic response, implemented with conventional conductors [5].…”

Double periodic composite right/left handed metamaterials

“…Few SP-CRLH SIWs have been designed, such as the antenna with transverse slots etched on the waveguide surface which are bridged by metallic strips located in a plane slightly below the surface as shown in were analyzed [105]. periodic structure is similar to that of the simple structure until the phase constant approaches the values at which the cutoffs occur.…”

“…(d) Inductive double-stub structure. (c) Triple-stub multiply-periodic structure.The qualitative analysis of such structures had been carried out using TL theory[105].Fig. 2.16 shows the dispersion characteristics of the periodic strip TLs[70].…”