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Internal folded loop antenna with tuning notches for GSM/GPS/DCS/PCS mobile handset applications
Author(s) -
Jung Byungwoon,
Rhyu Hanphil,
Lee YoungJoong,
Harackiewicz Frances J.,
Park MyunJoo,
Lee Byungje
Publication year - 2006
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.21743
Subject(s) - gsm , handset , standing wave ratio , electrical engineering , engineering , global positioning system , microwave , antenna (radio) , telecommunications , microstrip antenna
A novel compact quad‐band internal antenna for mobile handsets operating the GSM (880–960 MHz), GPS (1575 ± 10 MHz), DCS (1710–1880 MHz), and PCS (1850–1990 MHz) bands is proposed and implemented. The proposed antenna consists of a feeding strip, shorting strip, and folded loop radiating element with embedded tuning notches. Embedding the notches changes the current flow on the surface of the loop radiator so that the resonant frequencies can be controlled independently by their size and position. The measured impedance bandwidth (VSWR < 2) of the proposed antenna is 11.3% at GSM band and 27.4% at higher bands including GPS/DCS/PCS. The measured peak gains are 0.51, 2.06, 0.52, and 1.34 dBi, at the GSM, GPS, DCS, and PCS bands, respectively. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 48: 1501–1504, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21743