A 260-GHz on-chip cavity-backed slot antenna. Issue 1 (27th July 2018)

• Record Type: Journal Article
• Authors: Xiao, Jun; Qi, Zihang; Li, Xiuping; Feng, Weiwei; Zhu, Hua
• Is Part Of: International journal of microwave and wireless technologies. Volume 11:Issue 1(2019)
• Page Start: 27
• Page End: 34
• Publication Date: 2018-07-27
• Subjects: 0.13-μm SiGe BiCMOS technology, -- cavity backed, -- on-chip antenna, -- slot antenna; Wireless communication systems -- Periodicals; Microwave circuits -- Periodicals; Radio frequency -- Periodicals; 621.381305
• DOI: 10.1017/S1759078718001101
• Languages: English
• ISSNs: 1759-0787

Abstract

Abstract: This paper presents a cavity-backed dual-slot antenna in 0.13-μm SiGe BiCMOS technology. The dual-slot structure is excited by a cross-shaped strip line and a cavity which is formed by the topmost metal layer connected to the bottom metal layer through vias in between. By adopting dual-slot and cross-shaped feed line, the bandwidth is significantly enhanced by 196% compared with the single-slot antenna with straight feed line. The reason for bandwidth enhancement has been analyzed. The proposed antenna shows a measured impedance bandwidth of 15.2 GHz from 248.2 to 263.4 GHz for | S 11 | < −10 dB. The simulated and measured peak gains of the cavity-backed dual-slot antenna are −1.3 and −2.1 dBi, respectively. The simulated radiation efficiency is 31.1%. The total size of the antenna is 0.46 mm × 0.48 mm.