Design on Fabry-Perot antennas with conical beam

A Fabry-Perot (F-P) antenna with conical beam is presented. Cavity structure with a cross-slot FSS superstrate is designed resonant at a prescribed flare angle and a specified defect frequency by combining leaky wave and EBG antenna theory. By using a circular patch as the primary source, the aperture distribution can be controlled with appropriate mode to achieve desirable gain and side lobe level. Through optimized design, the impedance bandwidth of 5.34% with −10 dB return loss, the gain of 13.4dBi and a flare angle of 30 degrees have been achieved at the central frequency 12.5GHz. The side lobe level is −11.5dB and the ripple of gain is 1.56dB.

[1]  D. Fang,et al.  Circular Aperture Antenna With Conical Beam , 2011, IEEE Antennas and Wireless Propagation Letters.

[2]  H. Boutayeb,et al.  Internally Excited Fabry-PÉrot Type Cavity: Power Normalization and Directivity Evaluation , 2006, IEEE Antennas and Wireless Propagation Letters.

[3]  D. Jackson,et al.  2-D periodic leaky-wave antennas-part I: metal patch design , 2005, IEEE Transactions on Antennas and Propagation.

[4]  J. Vardaxoglou,et al.  Artificial magnetic conductor surfaces and their application to low-profile high-gain planar antennas , 2005, IEEE Transactions on Antennas and Propagation.

[5]  R. Mittra,et al.  Application of electromagnetic bandgap (EBG) superstrates with controllable defects for a class of patch antennas as spatial angular filters , 2005, IEEE Transactions on Antennas and Propagation.

[6]  K. Mahdjoubi,et al.  Design of a directive and matched antenna with a planar EBG structure , 2004, IEEE Antennas and Propagation Society Symposium, 2004..