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Please use this identifier to cite or link to this item: http://ir.ncue.edu.tw/ir/handle/987654321/10986

Title: Coupled-fed small-size PIFA for peta-band folder-type mobile phone application
Authors: Chang, Chih-Hua;Wong, Kin-Lu;Row, Jeen-Sheen
Contributors: 電機工程學系
Keywords: Internal mobile phone antenna;PIFA (planar inverted-F antenna);Folder-type mobile phone;Penta-band operation;Coupled-fed
Date: 2009-06
Issue Date: 2012-06-05T02:01:12Z
Publisher: Wiley
Abstract: A small-size planar inverted-F antennas (PIFA) for penta-band operation in the folder-type mobile phone is presented. The PIFA occupies a small volume of 2.1 cm3 only. Instead of using the conventional direct contact feed, the proposed PIFA uses a coupling feed, which allows the antenna in its open state or talk condition to generate a dual-resonance lower band of bandwidth 300 MHz (780–1080 MHz, 3:1 VSWR or 6-dB return loss) to cover GSM850/900 operation. In addition, the PIFA can also generate a very wide upper band of bandwidth 925 MHz (1368–2293 MHz) to cover GSM1800/1900/UMTS operation. When the mobile phone is in its close state or standby condition, the obtained lower and upper bands can still cover GSM850/900/1800/1900/UMTS penta-band operation with impedance matching better than 6:1 VSWR or 3-dB return loss, which is acceptable for the mobile phone in standby condition for practical applications. Details of the proposed PIFA and the obtained results are presented.
Relation: Microwave and Optical Technology Letters, 51(1): 18-23
Appears in Collections:[電機工程學系] 期刊論文

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