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Surface‐mount loop antenna for AMPS/GSM/DCS/PCS operation in the PDA phone
Author(s) -
Li WeiYu,
Wong KinLu
Publication year - 2007
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.22700
Subject(s) - stub (electronics) , engineering , gsm , wideband , electrical engineering , loop antenna , antenna (radio) , printed circuit board , electronic engineering , coaxial antenna , acoustics , telecommunications , radiation pattern , physics
A surface‐mount loop antenna very suitable for application in the mobile devices such as the PDA (Personal Digital Assistant) phone for quad‐band operation is presented. The antenna comprises of a loop metal pattern for generating two wideband resonant modes at about 900 and 1800 MHz to cover the AMPS/GSM/DCS/PCS bands and a central coupling stub as the feed structure. Although quad‐band operation is obtained, the antenna occupies a small volume of 7 × 8 × 60 mm 3 or about 3.4 cm 3 only and is easy to be embedded inside the PDA phone as an internal antenna. Details of the proposed surface‐mount loop antenna are presented and discussed. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 2250–2254, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22700