Title :
A novel frequency/pattern-reconfigurable microstrip antenna for WLAN applications
Author :
Ramadan, Ali ; Al-Husseini, Mohammed ; Tawk, Youssef ; Kabalan, Karim Y. ; El-Hajj, Ali
Author_Institution :
ECE Dept., American Univ. of Beirut, Beirut, Lebanon
Abstract :
The design of a frequency and pattern reconfigurable monopole-type printed antenna is presented in this paper. The antenna features a circular patch fed using a microstrip line, a shape-optimized partial ground plane, and two PIN diodes mounted over two slots in the ground plane. Three switching cases are considered. The first results in a single-band operation at 5.2 GHz, whereas the other two cases offer a dual-band operation, at 2.4 GHz and 5.2 GHz. In all three cases, an omnidirectional radiation pattern is obtained in the 5.2 GHz band. However, in the two cases where operation at 2.4 GHz is possible, an equal-gain E-plane pattern and 180°-switchable H-plane patterns are offered depending on the switching condition.
Keywords :
Antenna radiation patterns; Diodes; Dual band; Frequency; Microstrip antennas; Microstrip components; Patch antennas; Polarization; Slot antennas; Wireless LAN;
Conference_Titel :
Antennas and Propagation (EuCAP), 2010 Proceedings of the Fourth European Conference on
Conference_Location :
Barcelona, Spain
Print_ISBN :
978-1-4244-6431-9
Electronic_ISBN :
978-84-7653-472-4
