Abstract
Several synthesis techniques are available to optimize amplitude and phase excitations of periodic linear arrays to generate flat-top beams. Clearly, the optimal tapering depends on design parameters such as the array length, the number of array elements, the beam flatness, the beam width, the side lobe levels, and others. In this paper, in order to derive useful guidelines and rule of thumb for the synthesis of periodic array antennas, relations between these parameters are derived employing linear programming techniques, which guarantee optimality of the solutions. Such relations are then plotted and used in some design examples.
Highlights
In this paper, the canonical problem of generating a flat-top beam with a linear array of spaced identical elements is investigated
Key radiation pattern requirements are the ripple within the main-beam and the level of sidelobes after a transition zone from the main beam
Three of array synthesis presented in Section and are param solved the aidfor of the obtained curves involving thethe design parameters
Summary
The canonical problem of generating a flat-top beam with a linear array of spaced identical elements is investigated. A flat-top beam is a radiation pattern having an intensity profile that is flat over a required region of interest. Several antenna applications, such as reconnaissance and search RADARs, and wide-area broadcasting communication systems, require flat-top beams characterized by well-defined beamwidths. For such applications, key radiation pattern requirements are the ripple within the main-beam and the level of sidelobes after a transition zone from the main beam. Inspired by Butterworth filters [4], Ksienski introduced an analytical procedure [5] (extended in [6]) which maximizes the smoothness of the radiation patter at the expenses of an enlarged transition zone
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
