Premium
Internal hybrid loop/monopole slot antenna for quad‐band operation in the mobile phone
Author(s) -
Wu ChihHsien,
Wong KinLu
Publication year - 2008
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.23201
Subject(s) - monopole antenna , antenna (radio) , electrical engineering , microstrip antenna , loop antenna , slot antenna , dipole antenna , coaxial antenna , ground plane , antenna measurement , engineering , physics , electronic engineering , acoustics
A novel printed hybrid loop/monopole slot antenna for quad‐band operation in the mobile phone is presented. The proposed hybrid antenna is composed of a meandered loop antenna and a monopole slot antenna, and can generate two wide operating bands centered at about 900 and 1900 MHz to cover GSM850/900/DCS/PCS operation. The hybrid antenna is easily fabricated by bending the meandered loop antenna at low cost, which is connected to and centered at the top edge of the system ground plane where a straight monopole slot is embedded. With quad‐band operation obtained, the hybrid antenna, however, occupies a small volume of 5.5 × 6 × 60 mm 3 or 1.98 cm 3 only inside the mobile phone. A 50‐Ω microstrip feedline is used to excite the meandered loop antenna and the monopole slot antenna in series. Detailed results and parametric studies of the proposed hybrid antenna are presented. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 795–801, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23201