Title :
Two-dimensional, nonlinear oscillator array antenna
Author :
Heath, Ted ; Kerr, Robert R. ; Hopkins, Glenn D.
Author_Institution :
Sensors & Electromagn. Applications Lab., Georgia Tech Res. Inst., Smyrna, GA, USA
Abstract :
This paper details the design and performance of a 25-element, two-dimensional, nonlinear oscillator array antenna operating near the L1 GPS (1.57542 GHz) frequency. A simple theoretical framework for understanding its principle of operation (a reliance on the synchronization properties of coupled, nonlinear oscillators for phase coherence and inertia-less scanning) is provided. A unique feature of this design, the integration of diagnostic circuitry for the real-time simultaneous measurement of element-level amplitude and phase for calibration and control, is described.
Keywords :
UHF antennas; antenna arrays; oscillators; 1.57542 GHz; L1 GPS frequency; diagnostic circuitry; inertialess scanning; nonlinear oscillator array antenna; phase coherence; Antenna arrays; Beam steering; Coupling circuits; Frequency synchronization; Global Positioning System; Oscillators; Phase measurement; Phased arrays; Sensor arrays; Telecommunication control;
Conference_Titel :
Aerospace Conference, 2005 IEEE
Conference_Location :
Big Sky, MT
Print_ISBN :
0-7803-8870-4
DOI :
10.1109/AERO.2005.1559401
