Title :
Polarization reconfigurable suspended antenna using RF switches and P-I-N diodes
Author :
Boonying, Komkris ; Phongcharoenpanich, Chuwong ; Kosulvit, Sompol
Author_Institution :
Fac. of Eng., King Mongkut´s Inst. of Technol. Ladkrabang, Bangkok, Thailand
Abstract :
Polarization reconfigurable square flat antenna using RF switches and P-I-N diodes is presented for WLAN application operated at the center frequency of 2.45 GHz. The proposed antenna consists of the square flat structure, three switches (six P-I-N diodes), transmission-line phase shifters of 0 and 90 degrees. The antenna can be switched between 5 different states: vertical, horizontal and slant polarizations for linear polarization (LP), left-handed circular polarization (LHCP) and right-handed circular polarization (RHCP) by controlling the DC bias of 5 V and the current of 16 mA for the P-I-N diodes. The simulated and measured results show that the proposed antenna can cover the impedance bandwidth from 2.400 GHz to 2.484 GHz and good axial ratio for the circular polarization.
Keywords :
antennas; p-i-n diodes; phase shifters; wireless LAN; LHCP; LP; P-I-N diodes; RF switches; RHCP; WLAN application; bandwidth 2.400 GHz to 2.484 GHz; center frequency; frequency 2.45 GHz; horizontal polarizations; left handed circular polarization; linear polarization; polarization reconfigurable square flat antenna; polarization reconfigurable suspended antenna; right handed circular polarization; slant polarizations; square flat structure; transmission line phase shifters; vertical polarizations; Antenna measurements; Antennas; Frequency measurement; P-i-n diodes; Probes; Radio frequency; Switches; P-i-n diode; Polarization; RF switch; Reconfigurable antenna;
Conference_Titel :
Information and Communication Technology, Electronic and Electrical Engineering (JICTEE), 2014 4th Joint International Conference on
Conference_Location :
Chiang Rai
Print_ISBN :
978-1-4799-3854-4
DOI :
10.1109/JICTEE.2014.6804118
