Title :
A tunable, high Q magnetostatic volume wave oscillator based on straight edge YIG resonators
Author :
Marcelli, R. ; De Gasperis, P. ; Marescialli, L.
Author_Institution :
Istituto di Elettronica Dello Stato Solido del CNR, Rome, Italy
fDate :
11/1/1991 12:00:00 AM
Abstract :
An MSW (magnetostatic-wave) SER oscillator has been designed and characterized, exhibiting good performances for X-band applications. Acceptable Qext values (up to 3600), tunability, and good pushing characteristics have been obtained. The tunability performances have been extended between 7.5 GHz and 11 GHz by increasing the RF coupling factor and without comprising oscillator low noise characteristics, which is the correct tradeoff when high spectral purity and broadband tunability are both required. Output powers between +5 dBm and +15 dBm have been measured
Keywords :
garnets; magnetostatic wave devices; microwave oscillators; variable-frequency oscillators; yttrium compounds; 7.5 to 11 GHz; RF coupling factor; SER oscillator; X-band applications; low noise characteristics; magnetostatic volume wave oscillator; output powers; pushing characteristics; resonators; spectral purity; straight edge; tunability; Frequency; Impedance; MMICs; Magnetic films; Magnetostatic waves; Microstrip; Microwave oscillators; Q factor; Transducers; Tunable circuits and devices;
Journal_Title :
Magnetics, IEEE Transactions on
