Title :
A novel radiation pattern and frequency reconfigurable single turn square spiral microstrip antenna
Author :
Huff, G.H. ; Feng, J. ; Zhang, S. ; Bernhard, J.T.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Illinois, Urbana, IL, USA
Abstract :
This paper presents a novel pattern and frequency reconfigurable microstrip antenna that uses switched connections. The basic antenna operates with linear polarization around 3.7 GHz. One set of connections provides a re-directed radiation pattern while maintaining a common operating impedance bandwidth with the baseline configuration. The second set of connections results in operation at a higher frequency band at 6 GHz with broadside patterns. Measured results of the three antenna configurations are provided. Potential applications of this reconfigurability and directions for future work are discussed.
Keywords :
antenna radiation patterns; electromagnetic wave polarisation; microstrip antennas; 3.7 GHz; 6 GHz; antenna configurations; baseline configuration; broadside patterns; frequency reconfigurable antenna; linear polarization; operating impedance bandwidth; radiation pattern; re-directed radiation pattern; single turn square spiral microstrip antenna; switched connections; Antenna arrays; Antenna radiation patterns; Bandwidth; Feeds; Frequency; Impedance; Microstrip antennas; Phased arrays; Polarization; Spirals;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2003.808714
