Title :
Nonreciprocal coupling network for beam steering coupled oscillator arrays
Author :
Lopez, Jose I Martinez ; Moussounda, Renaud ; Rojas, Roberto G.
Author_Institution :
Div. de Ing. Electr., Univ. Nac. Autonoma de Mexico., Mexico City, Mexico
Abstract :
A nonreciprocal coupling network for beam steering coupled oscillator arrays is proposed. The circuit is based on the nonreciprocal behavior of transistor amplifiers that were specifically designed to increase the array stability while extending the achievable scanning range. Nonreciprocal coupling phases up to ± 180° are obtained for a weakly coupled oscillator array of patch antennas at 10 GHz.
Keywords :
amplifiers; coupled circuits; microstrip antenna arrays; microwave antenna arrays; oscillators; transistors; array stability; beam steering coupled oscillator arrays; frequency 10 GHz; nonreciprocal coupling network; patch antennas; transistor amplifiers; weakly coupled oscillator array; Couplings; Gain; Oscillators; Phased arrays; Power transmission lines; Propagation losses; Stability analysis;
Conference_Titel :
Phased Array Systems and Technology (ARRAY), 2010 IEEE International Symposium on
Conference_Location :
Waltham, MA
Print_ISBN :
978-1-4244-5127-2
Electronic_ISBN :
978-1-4244-5128-9
DOI :
10.1109/ARRAY.2010.5613255
