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Evaluation of beam steering in circular planar array of coupled microwave oscillators
Author(s) -
Tooni Sakineh,
Banai Ali,
Farzaneh Forouhar
Publication year - 2011
Publication title -
international journal of rf and microwave computer‐aided engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.335
H-Index - 39
eISSN - 1099-047X
pISSN - 1096-4290
DOI - 10.1002/mmce.20527
Subject(s) - microwave , planar , beam steering , circular buffer , planar array , enhanced data rates for gsm evolution , physics , beam (structure) , function (biology) , optics , acoustics , topology (electrical circuits) , electrical engineering , engineering , computer science , telecommunications , quantum mechanics , computer graphics (images) , evolutionary biology , biology , programming language
A Green's function to describe the time behavior of the locking phases in a circular planar array of mutually coupled microwave oscillators is proposed. Using this Green's function the dynamic behavior of the array can be described for any arbitrary free running frequency of elements of the oscillator array. Beam steering is realized via detuning the edge oscillators of the array from a reference frequency and the beam direction is controlled by the amount of detuning for each oscillator at the edge. Some detuning functions such as sinusoidal, triangular and rectangular ones have been applied and, the resulting array patterns are compared with one another. © 2011 Wiley Periodicals, Inc. Int J RF and Microwave CAE, 2011.