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Four‐element antenna‐array beam‐forming network
Author(s) -
Uysal S.
Publication year - 1999
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/(sici)1098-2760(19991120)23:4<207::aid-mop5>3.0.co;2-c
Subject(s) - directivity , microstrip antenna , bandwidth (computing) , antenna array , microwave , microstrip , engineering , beam (structure) , antenna (radio) , acoustics , electrical engineering , optics , telecommunications , electronic engineering , physics
In this work, a C‐band passive microstrip four‐element antenna‐array beam‐forming network (BFN) using high‐directivity directional couplers is described. In the transmit mode, an input signal is split into four equiphase equiamplitude parts so as to correctly feed the elements of a linear/2‐D array. The amplitude difference among the four feeds is within 0.5 dB, and the phases of the signals at the feeds differ by less than 10° in a 4:1 bandwidth. ©1999 John Wiley & Sons, Inc. Microwave Opt Technol Lett 23: 207–209, 1999.