Title :
A frequency reconfigurable PIFA using a PIN diode for mobile-WiMAX applications
Author :
Jong-Hyuk Lim ; Zhe-Jun Jin ; Tae-Yeoul Yun
Author_Institution :
Dept. of Electr. & Comput. Eng., Hanyang Univ., Seoul, South Korea
Abstract :
A frequency reconfigurable planar inverted-F antenna (PIFA) using a PIN-diode is presented for mobile-WiMAX applications. The antenna in this study not only alters the frequency bands of mobile-WiMAX but also has a small profile using electro-magnetic coupling in a high dielectric constant substrate. The PIFA consists of a main radiator, an additional parasitic radiator, a coupled radiator, two PIN-diodes, and control circuits. One diode is placed between the main and additional parasitic radiator on the top side, and the other diode is placed between a coupled radiator and ground. Depending upon whether diodes are on or off, the antenna operates over 2.3 to 2.4 GHz, 2.5 to 2.7 GHz, and 3.4 to 3.6 GHz for worldwide mobile-WiMAX bands. All simulated and measured results for the proposed antenna are presented and they show good agreement.
Keywords :
WiMax; electromagnetic coupling; mobile radio; p-i-n diodes; planar inverted-F antennas; PIN diode; control circuits; coupled radiator; electro-magnetic coupling; frequency 2.3 GHz to 2.7 GHz; frequency 3.4 GHz to 3.6 GHz; frequency bands; frequency reconfigurable PIFA; frequency reconfigurable planar inverted-F antenna; high dielectric constant substrate; main radiator; mobile-WiMAX applications; parasitic radiator; Antenna measurements; Antenna radiation patterns; Bandwidth; MIMO; Mobile antennas; Substrates; MIMO; PIFA; PIN; WiMAX; coupling; reconfigurable; small size;
Conference_Titel :
Intelligent Radio for Future Personal Terminals (IMWS-IRFPT), 2011 IEEE MTT-S International Microwave Workshop Series on
Conference_Location :
Daejeon
Print_ISBN :
978-1-4577-0961-6
Electronic_ISBN :
978-1-4577-0963-0
DOI :
10.1109/IMWS2.2011.6027176
