PMID- 24399156
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20140623
LR  - 20211021
IS  - 1424-8220 (Electronic)
IS  - 1424-8220 (Linking)
VI  - 14
IP  - 1
DP  - 2014 Jan 6
TI  - An ionic-polymer-metallic composite actuator for reconfigurable antennas in 
      mobile devices.
PG  - 834-47
LID - 10.3390/s140100834 [doi]
AB  - In this paper, a new application of an electro-active-polymer for a radio 
      frequency (RF) switch is presented. We used an ionic polymer metallic composite 
      (IPMC) switch to change the operating frequency of an inverted-F antenna. This 
      switch is light in weight, small in volume, and low in cost. In addition, the 
      IPMC is suitable for mobile devices because of its driving voltage of 3 volts and 
      thickness of 200 mum. The IPMC acts as a normally-on switch to control the 
      operating frequency of a reconfigurable antenna in mobile phones. We 
      experimentally demonstrated by network analysis that the IPMC switch could shift 
      its operating frequency from 1.1 to 2.1 GHz, with return losses of than -10 dB at 
      both frequencies. To minimize electrolysis and maximize the operation time in 
      air, propylene carbonate electrolyte with lithium perchlorate (LiClO(4)) was 
      applied inside the IPMC. The results showed that when the IPMC was actuated over 
      three months at 3.5 V, the tip displacement fell by less than 10%. Therefore, an 
      IPMC actuator is a promising choice for application to a reconfigurable antenna.
FAU - Lin, Yi-Chen
AU  - Lin YC
AD  - Graduate Institute of Photonics and Optoelectronics, National Taiwan University, 
      No. 1, Sec. 4, Roosevelt Rd., Taipei 106, Taiwan. victorlin1020@gmail.com.
FAU - Yu, Chung-Yi
AU  - Yu CY
AD  - Graduate Institute of Photonics and Optoelectronics, National Taiwan University, 
      No. 1, Sec. 4, Roosevelt Rd., Taipei 106, Taiwan. r01941078@ntu.edu.tw.
FAU - Li, Chung-Min
AU  - Li CM
AD  - Graduate Institute of Photonics and Optoelectronics, National Taiwan University, 
      No. 1, Sec. 4, Roosevelt Rd., Taipei 106, Taiwan. r01941089@ntu.edu.tw.
FAU - Liu, Chin-Heng
AU  - Liu CH
AD  - Graduate Institute of Photonics and Optoelectronics, National Taiwan University, 
      No. 1, Sec. 4, Roosevelt Rd., Taipei 106, Taiwan. r99941044@ntu.edu.tw.
FAU - Chen, Jiun-Peng
AU  - Chen JP
AD  - Graduate Institute of Photonics and Optoelectronics, National Taiwan University, 
      No. 1, Sec. 4, Roosevelt Rd., Taipei 106, Taiwan. jpchen.home@msa.hinet.net.
FAU - Chu, Tah-Hsiung
AU  - Chu TH
AD  - Graduate Institute of Photonics and Optoelectronics, National Taiwan University, 
      No. 1, Sec. 4, Roosevelt Rd., Taipei 106, Taiwan. thc@ntu.edu.tw.
FAU - Su, Guo-Dung John
AU  - Su GD
AD  - Graduate Institute of Photonics and Optoelectronics, National Taiwan University, 
      No. 1, Sec. 4, Roosevelt Rd., Taipei 106, Taiwan. gdjsu@cc.ee.ntu.edu.tw.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20140106
PL  - Switzerland
TA  - Sensors (Basel)
JT  - Sensors (Basel, Switzerland)
JID - 101204366
PMC - PMC3926588
EDAT- 2014/01/09 06:00
MHDA- 2014/01/09 06:01
PMCR- 2014/01/01
CRDT- 2014/01/09 06:00
PHST- 2013/09/29 00:00 [received]
PHST- 2013/12/16 00:00 [revised]
PHST- 2013/12/25 00:00 [accepted]
PHST- 2014/01/09 06:00 [entrez]
PHST- 2014/01/09 06:00 [pubmed]
PHST- 2014/01/09 06:01 [medline]
PHST- 2014/01/01 00:00 [pmc-release]
AID - s140100834 [pii]
AID - sensors-14-00834 [pii]
AID - 10.3390/s140100834 [doi]
PST - epublish
SO  - Sensors (Basel). 2014 Jan 6;14(1):834-47. doi: 10.3390/s140100834.