Title :
A study of microstrip array antennas with the feed network
Author :
Levine, Ely ; Malamud, Gabi ; Shtrikman, Shmuel ; Treves, David
Author_Institution :
Elta Electron. Ind. Ltd., Ashdod, Israel
fDate :
4/1/1989 12:00:00 AM
Abstract :
The radiation and losses in microstrip antennas with a corporate feed network are studied. A surface current approach is applied in which the electrical currents in the feed lines are modeled as in ideal transmission lines. The free-space radiation and the surface-wave excitation of typical segments in printed feed networks are studied. A four-element array antenna with its printed feed network is analyzed and predicted radiation patterns, directivity, and gain are presented and compared with experimental results. The gain and directivity of large arrays of 16, 64, 256 and 1024 elements are calculated and measurements in the frequency range of 10 to 35 GHz are reported
Keywords :
antenna feeders; antenna radiation patterns; microstrip antennas; microwave antenna arrays; 10 to 35 GHz; directivity; feed network; four-element array antenna; free-space radiation; gain; losses; microstrip array antennas; printed feed networks; radiation; radiation patterns; surface current approach; surface-wave excitation; Antenna feeds; Antenna radiation patterns; Current distribution; Dielectric losses; Dielectric substrates; Frequency; Microstrip antenna arrays; Microstrip antennas; Pattern analysis; Surface waves;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
