Mechanically reconfigurable slotted-waveguide antenna array for 5G networks

Arranjo de Antena em Guia de Onda Fendido de Alto Ganho para 5G

“…Arranjos de antenas em guia de onda fendido (SWAAs) são compostos por fendas fresadas ao longo das paredes de um guia de onda retangular ou circular preenchido por ar ou material dielétrico [15][16][17][18][19][20]. Para os guias retangulares, as fendas podem ser posicionadas longitudinalmente em sua face maior ou menor para a formação de diagramas transversais e diretivos.…”

“…Os arranjos de antenas para ondas milimétricas tipicamente utilizam elementos impressos [9][10][11], guias de onda integrados ao substrato (SIW, Substrate integrate waveguide) [12][13][14] ou antenas em guias de onda fendido [15][16][17][18][19][20]. Estruturas de alto ganho formadas por irradiadores impressos ou SIW são complexas devido ao uso de uma ou múltiplas portas atreladas à rede de alimentação para excitação de seus elementos.…”

Wideband Omnidirectional Slotted-Waveguide Antenna Array Based on Trapezoidal Slots

“…Other applications include satellite television reception [15], land mines activation [16], and pressure sensors [17]. Our research group has recently proposed novel SWAAs for 5G networks [18][19][20][21]. For instance, we have introduced a concept of a rectangular dual-band SWAA with sectorial coverage in the 28 and 38 GHz bands [18].…”

“…Moreover, the first optically controlled antenna array for mm-wave from literature was reported in [19]. Finally, a mechanically reconfigurable SWAA operating at 27 GHz has been proposed and properly validated in [20].…”

Mechanical Beam Steering Circular Patch Antenna

“…In [8], we proposed an optically-controlled slotted-waveguide antenna array able to reconfigure its bandwidth between 28 and 38 GHz bands, by properly illuminating a photoconductive switch. Moreover, a mechanically reconfigurable slotted-waveguide antenna array capable to provide radiation pattern reconfiguration was described in [9].…”