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A new L-band long slot antenna array design is described. Besides the use of long slot array to provide dual polarization radiation pattern in the 1–2 GHz band, the antenna is integrated with a metamaterial ground plane to provide compact design and improved gains. Simulation results of S-parameters and radiation patterns will be presented and the design trade-off will be discussed in details.
In this letter, a realistic method for feeding the dual-polarized cylindrical long-slot array (CLSA) antenna is presented. A compact lumped-element balun with 2.5:1 bandwidth is designed, fabricated, measured, and used for feeding the dipole-mode, while a compact microstrip coupled-line impedance transformer is used for feeding the slot mode of the antenna. Simulation results of these feeds are compared...
On many military tactical platforms, multiple wire-like narrowband antennas are employed, with each antenna covering a specific communication band. This approach enables the adversaries to distinguish the communication center and renders it a high priority target. The cylindrical long-slot antenna architecture can be used as an alternative ultra-wideband antenna to replace the multiple wire structures...
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