A low‐profile substrate integrated waveguide (SIW) cavity antenna with enhanced bandwidth is proposed. Three slots are etched to divide a single cavity into multiple sub‐cavities. Four fraction modes including a half mode, a quarter mode and two‐eighth modes are excited by a capacitively coupled feeding. Bandwidth enhancement can be achieved when these fraction modes have close frequencies and couple with each other. A fabricated prototype centred at 3.55 GHz has been measured. With the size of 0.43λ 0 × 0.43λ 0 × 0.04λ 0 , the proposed design achieves the bandwidth of 13.5% and an efficiency of 85%. The proposed antenna has advantages of low profile, enhanced bandwidth and high efficiency, which is a good candidate for the fifth generation wireless systems.
No takes yet. Share an insight, caveat, or question.
Niu et al. (2018) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: