Title :
An improved nonlinear analysis and design method of microstrip oscillators based on modern CAD techniques
Author :
El-Tager, Ayman M. ; Abdallah, Esmat A. ; Nassef, Mohammed A.
Author_Institution :
Mil. Tech. Coll., Cairo, Egypt
Abstract :
In this paper, a novel nonlinear oscillator design methodology is proposed to obtain an improved microstrip oscillator performance. It combines the advantages of both quasilinear and nonlinear design approaches. It uses an accurate implemented nonlinear MESFET model, based on multi-bias measurements, and the enhanced harmonic balance nonlinear analysis technique of the HP-MDS. Finally, an 8.5 GHz oscillator is fabricated and an excellent agreement between the theoretical and experimental results is obtained,
Keywords :
MESFET circuits; circuit CAD; circuit analysis computing; hybrid integrated circuits; integrated circuit design; microstrip circuits; microwave integrated circuits; microwave oscillators; nonlinear network analysis; nonlinear network synthesis; 8.5 GHz; CAD techniques; HP-MDS; MIC design; SHF; enhanced harmonic balance nonlinear analysis; microstrip oscillators; multi-bias measurements; nonlinear MESFET model; nonlinear analysis method; nonlinear oscillator design methodology; nonlinear synthesis method; Design automation; Design methodology; Design optimization; Feedback; Harmonic analysis; MESFETs; Microstrip; Microwave oscillators; Modems; Scattering parameters;
Conference_Titel :
Microwave and Optoelectronics Conference, 1999. SBMO/IEEE MTT-S, APS and LEOS - IMOC '99. International
Conference_Location :
Rio de Janeiro
Print_ISBN :
0-7803-5807-4
DOI :
10.1109/IMOC.1999.866241
