Annular CPW-FED directivity-variable array antenna loaded with Schottky diodes

作者：Yang Dae Geun; Kim Kyung Soo; Kim Dong Ju; Jang Eun Seok; Kim Che Young^*

来源：Microwave and Optical Technology Letters, 2018, 60(8): 1873-1877.

DOI：10.1002/mop.31263

• CPW
• directivity-variable antenna
• MIMO
• MIPP
• Schottky diodes

A novel high-speed directivity-variable array antenna is designed, fabricated and characterized. The passive LC elements and varactor/PIN diodes used in conventional antennas are replaced with an annular coplanar waveguide (CPW) and Schottky diodes, in order to overcome the problem of out-of-band radiation. The proposed antenna consists of 3 dipole antennas on the upper side of the substrate, and a CPW with 4 Schottky diodes on the bottom side of the substrate. The antenna was designed and characterized at 2.45 GHz. Measurement results demonstrate that the proposed antenna exhibits beam steering and mirror-image pattern pairs capability.

• 出版日期2018-8