Reconfigurable PIFA/loop antenna for mobile handset applications

2014 ◽  
Vol 56 (9) ◽  
pp. 2034-2037 ◽  
Author(s):  
Da-Ae Lee ◽  
Youngje Sung
Keyword(s):  
Loop Antenna ◽  
Mobile Handset

Folded Dual-Loop Antenna for GSM/DCS/PCS/UMTS Mobile Handset Applications

2010 ◽  
Vol 9 ◽  
pp. 998-1001 ◽  
Author(s):  
Chia-Hao Ku ◽  
Hsien-Wen Liu ◽  
Sheng-Yu Lin
Keyword(s):  
Loop Antenna ◽  
Mobile Handset

Internal folded loop antenna with tuning notches for GSM/GPS/DCS/PCS mobile handset applications

2006 ◽  
Vol 48 (8) ◽  
pp. 1501-1504 ◽  
Author(s):  
Byungwoon Jung ◽  
Hanphil Rhyu ◽  
Young-Joong Lee ◽  
Frances J. Harackiewicz ◽  
Myun-Joo Park ◽  
...  
Keyword(s):  
Loop Antenna ◽  
Mobile Handset

scholarly journals Enhanced Loop Structure of NFC Antenna for Mobile Handset Applications

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Byungje Lee ◽  
Byeongkwan Kim ◽  
Sunghyun Yang
Keyword(s):  
Polymer Composite ◽  
Relative Permeability ◽  
Eddy Current ◽  
Loop Antenna ◽  
Battery Pack ◽  
Loop Structure ◽  
Embedded Capacitor ◽  
Performance Deterioration ◽  
Mobile Handset

A new structure of an NFC loop antenna for mobile handset applications is proposed. The proposed antenna consists of conventional loop elements and a parasitic loop embedded capacitor to enhance its performance. Although the sintered ferrite sheets with higher relative permeability(μr≈200)have been used to reduce the performance deterioration due to the eddy current on the battery pack of a mobile handset, their costs are high, and they are considerably breakable. In this paper, with the proposed structure, we effectively enhance the performance of an NFC loop antenna by employing the ferrite-polymer composite with lower relative permeability(μr≈55).

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