Title :
Study and design of a multi-functional stacked microstrip patch antenna
Author :
Kunda, V.K. ; Ali, M. ; Hwang, H.S.
Author_Institution :
Dept. of Electr. Eng., South Carolina Univ., Columbia, SC, USA
Abstract :
A multi-functional stacked microstrip patch antenna is introduced. The antenna operates at an upper frequency with a broadside pattern, 9 dBi right-hand circularly polarized gain, and 16% impedance and axial ratio bandwidth. At a lower frequency, the antenna operates as a planar inverted-F antenna with the main beam directed close to the horizon. Switching between the two regimes of operation is achieved using PIN diodes.
Keywords :
UHF antennas; antenna radiation patterns; electric impedance; electromagnetic wave polarisation; microstrip antennas; multifrequency antennas; 1800 MHz; 5 to 6 GHz; PIFA; PIN diodes; axial ratio bandwidth; broadside pattern; impedance bandwidth; multi-functional antenna; multi-functional stacked microstrip patch antenna; planar inverted-F antenna; right-hand circular polarization; Broadband antennas; Frequency; Geometry; Low earth orbit satellites; Microstrip antennas; Microswitches; Mobile communication; Patch antennas; Polarization; Wireless LAN;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2004. IEEE
Print_ISBN :
0-7803-8302-8
DOI :
10.1109/APS.2004.1331907
