Title :
A hybrid antenna element for dual-band applications
Author :
Ravipati, C.B. ; Zaghloul, A.I.
Author_Institution :
Appl. EM, Inc., Hampton, VA, USA
Abstract :
Simulation results for a new dual-band antenna element suitable for wide-angle scan phased arrays are presented. The antenna element is a hybrid of microstrip and waveguide radiating structures. Preliminary design simulations of the antenna design aimed to achieve an upper to lower frequency ratio of 1.3. Computed results indicate that the antenna radiates efficiently at both frequency bands. The geometry offers enough flexibility to adjust the range of lower and upper frequencies of operation. Both linear and circular polarizations can be realized.
Keywords :
antenna phased arrays; electromagnetic wave polarisation; microstrip antennas; multifrequency antennas; waveguide antennas; 15 GHz; 20.5 GHz; circular polarization; dual-band antenna element; hybrid antenna element; linear polarization; microstrip radiating structure; phased arrays; shorted annular ring reduced surface wave antenna; waveguide radiating structure; wide-angle scan arrays; Antenna arrays; Broadband antennas; Dipole antennas; Dual band; Electromagnetic waveguides; Frequency; Microstrip antenna arrays; Microstrip antennas; Phased arrays; Polarization;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2004. IEEE
Print_ISBN :
0-7803-8302-8
DOI :
10.1109/APS.2004.1330232
