Wideband Offset Slot-Coupled Patch Antenna Array for X/Ku-Band Multimode Radars
Makaleler > Tam Makale · 2014
Yazarlar: M. M. Bilgic, Korkut YEĞİN
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, SCI Expanded İndekslerine Giren Dergi, Uluslararası, 2014, cilt 13, ss 157-160
DOI: 10.1109/lawp.2013.2296911
Özet
A high-gain, wideband antenna element that covers most portions of X- and Ku-bands is essential for multimode radar applications. This letter presents an aperture-coupled stacked patch antenna for 8.75-12.25-GHz frequency band. Fixed beam tilt up to 30 degrees in scan range can be obtained by offsetting the aperture relative to a driven patch. When there is no offset, a single antenna has broadside gain greater than 10 dBi. An antenna array (4 x 4) with fixed beam tilt is designed and validated with measurements. The prototype antenna exhibits 44% fractional bandwidth and maximum gain 20.6 dBi in the target frequency band.