New EBG-filter design in inverted microstrip gap waveguide technology

Inverted Microstrip Gap Waveguide Coplanar EBG Filter for Antenna Applications

“…In this way, the losses due to the substrate would be increased and the required air signal propagation, which is an essential advantage of this technology, would be lost. This is the starting point of this work to investigate the option proposed in [33][34][35][36], coupling the resonators in a coplanar configuration to the inverted printed line on the same circuit board. In this case the mushroom elements were short-circuited to the top plate of the parallel plate waveguide in an inverted position as shown in Figure 1.…”

Ka-Band Diplexer for 5G mmWave Applications in Inverted Microstrip Gap Waveguide Technology

“…There are many examples of designs of antennas and circuits made in gap waveguide technology in the literature, but not that many in the case of the inverted microstrip version. Some examples can be found in [5][6][7][8][9][10][11]; also transitions to standard waveguides and transmission lines have been developped [12][13][14][15][16], the study of the optimal numeric port [17]; up to some of the various components that make up a RF front-end like antenna feeds [18][19][20][21][22][23][24][25][26][27][28][29][30][31][32]; beamforming Butler matrix [33,34] or filters [5,[35][36][37][38][39]. Few studies on diplexers with this technology have been published apart from this one using the groove version [40].…”

Filtros fijos y sintonizables para las cabeceras de radiofrecuencia en sistemas espaciales

“…Por otro lado, la guía IM-GW es atractiva para ser integrada con circuitos planares, ofreciendo menores pérdidas dieléctricas y de conductor en comparación con la línea microstrip clásica. En esta segunda tecnología también han sido diseñados recientemente ltros mediante resonadores en anillo o con líneas acopladas [Castro et al, 2021], o basados en estructuras EBG [Inclan-Sanchez et al, 2017].…”