Efficiency improvement of mobile antenna by controlling ground structure
- Authors
- Yoo, Sangmoon; Kim, Hyeongdong
- Issue Date
- Jan-2017
- Publisher
- Institute of Electrical and Electronics Engineers Inc.
- Keywords
- Efficiency; Mobile device; PIFA
- Citation
- ISAP 2016 - International Symposium on Antennas and Propagation, pp.714 - 715
- Indexed
- SCOPUS
- Journal Title
- ISAP 2016 - International Symposium on Antennas and Propagation
- Start Page
- 714
- End Page
- 715
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/21217
- Abstract
- The proposed antenna structure with modified ground plane that fully covers Bluetooth and Wireless Fidelity (Wi-Fi) applications. In order to enhance the efficiency, a resonator which consists of a closed loop of a ground plane and lumped inductor (L) are proposed. The closed loop is connected to the ground plane with open-end extension by lumped inductor for easy control. This antenna designed on Flame Retardant Type 4 (FR-4) with 1 mm-thickness was used as the substrate (ϵr= 4.4, tan δ = 0.02). The overall volume of Printed Circuit Board (PCB) is 40 × 20 ×1 mm3 and the size of a closed loop is 10mm × 20mm. A -6 dB bandwidth covering 250 MHz (2.38 GHz-2.62 GHz) is achieved and average efficiency of 69.05% is obtained in measurement. This technique is versatile and improves the antenna performances. © 2016 IEICE.
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