Title :
Injection-locked harmonic self-oscillating mixer for variable phase-shifter applications in active microstrip phased antenna arrays
Author :
Hoeye, S. Ver ; Herrán, L.F. ; Heras, F. Las
Author_Institution :
Dept. of Electr. Eng., Oviedo Univ., Gijon, Spain
Abstract :
A new phase shifter element for use in active microstrip phased antenna arrays is presented. It is based on an injection-locked harmonic self-oscillating mixer, providing the double functionality of variable phase-shifter and down-converter. Maximum conversion gain is obtained, through the use of a new multiharmonic load at the input of the circuit. The ranges of synchronized operation are analyzed versus the circuit parameters, paying attention on the stability of the implemented circuit A 12 GHz to 3 GHz down-converter with a 4.5 GHz injection frequency has been designed, providing a stable phase-shift variation up to 360°, with an 8 dB conversion gain.
Keywords :
active antenna arrays; antenna phased arrays; harmonic oscillators (circuits); injection locked oscillators; microstrip antenna arrays; microwave frequency convertors; microwave mixers; microwave oscillators; microwave phase shifters; network analysis; 12 GHz; 3 GHz; 4.5 GHz; 8 dB; active antenna arrays; active microstrip phased antenna arrays; conversion gain; down-converter; injection frequency; injection-locked harmonic self-oscillating mixer analysis; microstrip antenna arrays; multiharmonic load; variable phase-shifter; Circuit analysis; Circuit stability; Frequency conversion; Frequency synchronization; Gain; Microstrip antenna arrays; Microstrip antennas; Phase shifters; Phased arrays; Stability analysis;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2005 IEEE
Print_ISBN :
0-7803-8883-6
DOI :
10.1109/APS.2005.1551774
