A dual-slot feeding structure is used in the design of a two-layer E-band substrate integrated array antenna to realize the wideband or dual-band characteristic. Several metallic vias, which are equivalent to open-ended air-filled circular waveguides, are fabricated through printed circuit board process to form wideband radiating elements. They are fed by a parallel substrate integrated waveguide (SIW) feeding network underneath these radiating elements to obtain a compact configuration. First of all, a single antenna element is modeled and investigated to recognize the characteristics of the feeding dual-slot and the radiation via. Then, a 16×16 high-gain wideband array antenna is fabricated. Its measured |S11|11|<;-10 dB bandwidths are 70.6-72.4 GHz and 80.8-82.2 GHz, and measured realized gains are 24.2-25.2 dBi and 24.6-25.8 dBi, respectively. Maximal total radiation efficiency is measured to 72.4%. Considering its wide-band, high-gain and compact configuration, this type of substrate integrated antenna array presents an excellent candidate for E-band multi-gigahertz capacity wireless communication systems.
No takes yet. Share an insight, caveat, or question.
Wang et al. (2014) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: