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Study of a T-Shaped Slot With a Capacitor for High Isolation Between MIMO Antennas
- Authors
- Park, Jungsik; Choi, Junho; Park, Ji-Yong; Kim, Young-Sik
- Issue Date
- 2012
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Antenna; capacitor; isolation; mutual coupling; slot
- Citation
- IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, v.11, pp.1541 - 1544
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
- Volume
- 11
- Start Page
- 1541
- End Page
- 1544
- ISSN
- 1536-1225
- Abstract
- In this letter, an isolation improvement method between two closely packed planar inverted-F antennas (PIFAs) is proposed via a miniaturized ground slot with a chip capacitor. The proposed T-shaped ground slot acts as a notch filter, and the capacitor is utilized to reduce the slot length. The equivalent circuit model of the proposed slot with the capacitor is derived. The measured isolation between two PIFAs is down to below -20 dB at the whole WLAN band of 2.4 GHz.
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