Title :
MEMS-Switched, Frequency-Tunable Hybrid Slot/PIFA Antenna
Author :
Liu, Zidong ; Boyle, Kevin ; Krogerus, Joonas ; de Jongh, M. ; Reimann, Klaus ; Kaunisto, Risto ; Ollikainen, Jani
Author_Institution :
NXP Semicond., Redhill
fDate :
7/1/1905 12:00:00 AM
Abstract :
A microelectromechanical systems (MEMS)-switched, frequency-tunable hybrid slot/planar inverted-F antenna (PIFA) is demonstrated. The antenna occupies a small printed circuit board (PCB) space and is capable of operating between 2 and 5 GHz with three digital tuning steps. The measured mismatch-corrected efficiency is better than 60% between 2 and 5 GHz. The specific absorption rate (SAR) for an input power of 100 mW is less than 0.45 W/kg averaged over 1 g of tissue and 0.31 over 10 g of tissue assuming a system duty cycle of 0.5.
Keywords :
microswitches; planar inverted-F antennas; printed circuits; slot antennas; MEMS-switched antenna; PCB; PIFA antenna; digital tuning; frequency 2 GHz to 5 GHz; frequency-tunable hybrid slot antenna; microelectromechanical systems; planar inverted-F antenna; power 100 mW; printed circuit board; specific absorption rate; Antenna; cognitive radio; microelectromechanical systems (MEMS); slot;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2009.2015346
