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초록
Two ground radiation antennas with polarisation diversity performance were proposed for MIMO WLAN applications in wearable devices. The antennas can simultaneously excite the vertical mode and horizontal mode of the ground plane and the phase difference between the two modes can be controlled by utilising an inductor-loaded metal strip in the ground plane, generating circular polarisation. A 3:1 VSWR bandwidth of 140 MHz with high isolation (above 17 dB) and a 3 dB axial ratio bandwidth of 100 MHz was obtained. The opposite rotations generated by the two antennas resulted in good diversity performance, which was verified by the measured envelope correlation coefficient.
키워드
antenna radiation patterns; wearable antennas; electromagnetic wave polarisation; MIMO communication; wireless LAN; antenna arrays; inductors; VHF antennas; circularly polarised MIMO ground radiation antenna; wearable device; polarisation diversity performance; MIMO WLAN application; inductor-loaded metal strip; circular polarisation generation; envelope correlation coefficient; bandwidth 140 MHz; bandwidth 100 MHz; PERFORMANCE ENHANCEMENT; COMPACT
- 제목
- Circularly polarised MIMO ground radiation antennas for wearable devices
- 저자
- Qu, Longyue; Piao, Haiyan; Qu, Yunhao; Kim, Hyung-Hoon; Kim, Hyeong dong
- 발행일
- 2018-02
- 유형
- Article
- 권
- 54
- 호
- 4
- 페이지
- 189 ~ 190