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Smart planar inverted‐F antenna for broadband applications
Author(s) -
Karmakar Nemai Chandra
Publication year - 2003
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.11226
Subject(s) - planar , broadband , microwave , bandwidth (computing) , insertion loss , multi band device , materials science , optoelectronics , folded inverted conformal antenna , frequency band , electrical engineering , microstrip antenna , engineering , antenna (radio) , telecommunications , antenna efficiency , computer science , computer graphics (images)
A single‐feed dual‐band stacked‐patch Planar Inverted‐F Antenna (PIFA) is integrated with a RF switch array at one side of its shorting straps to make a tunable PIFA. The L‐band switch yields 0.45‐dB insertion loss (IL) and 10‐dB isolation bandwidth (BW) of >100% at 1.2 GHz. The tunable PIFA yields 13% frequency tunability BW at 800 MHz band and 21% BW at the 1.9‐GHz band. The measured radiation patterns are broad beams with low backlobes, as compared to those of a standard PIFA. © 2003 Wiley Periodicals, Inc. Microwave Opt Technol Lett 39: 389–393, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.11226