Title :
A Printed Crescent Patch Antenna for Ultrawideband Applications
Author :
Azenui, Ntsanderh C. ; Yang, H.Y.D.
Author_Institution :
Dept. of Electr. & Comput. Eng., Illinois Univ., Chicago, IL
fDate :
6/29/1905 12:00:00 AM
Abstract :
A miniaturized crescent-shape microstrip antenna is proposed for ultrawideband (3-10 GHz) applications. The crescent antenna is evolved from an elliptical patch antenna by carving a circular hole inside symmetrically. The circular aperture introduces an additional antenna in-band resonance and provides wider bandwidth with more design flexibility. The radiation characteristics of this crescent antenna are investigated with full-wave electromagnetic simulations and compared with an elliptical antenna. A crescent antenna prototype that occupies only 60% area of the elliptical patch is fabricated and tested. Antenna pattern and impedance measurements show good performance over the 3-10 GHz band with consistent radiation patterns, low cross polarization, and a substantial gain. The design method is also described
Keywords :
antenna radiation patterns; electromagnetic wave polarisation; microstrip antennas; ultra wideband antennas; 3 to 10 GHz; antenna pattern; elliptical patch antenna; full-wave electromagnetic simulations; in-band resonance; low cross polarization; miniaturized crescent-shape microstrip antenna; printed crescent patch antenna; radiation characteristics; ultrawideband applications; Aperture antennas; Bandwidth; Electromagnetic radiation; Microstrip antennas; Patch antennas; Prototypes; Resonance; Testing; Ultra wideband antennas; Ultra wideband technology; Disc monopole; patch antenna; printed circuits; ultrawideband;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2007.891522
