A theoretical analysis is presented for a microstrip ferrite resonator of microwave frequency /spl nu//sub r/ that is tunable by varying the state of magnetization. Measurements at 8 GHz indicate a 5% tunability range for a magnetic field H >50 Oe. Calculations of /spl nu//sub r/ as a function of H are fitted closely to data. Computed performance estimates of a superconducting resonator with an ideal magnetic structure project a remanent-state tunability limit of 25% and an X-band figure of merit of 7000 for a Q factor of 10/sup 4/.
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机译：对微波频率为/ spl nu // sub r /的微带铁氧体谐振器进行了理论分析，该微带铁氧体谐振器可通过改变磁化状态进行调节。在8 GHz下的测量表明，对于H> 50 Oe的磁场，可调范围为5％。 / spl nu // sub r /作为H的函数的计算非常适合数据。计算出的具有理想磁性结构的超导谐振器的性能估算表明，对于Q值为10 / sup 4 /，剩磁状态可调性极限为25％，X波段品质因数为7000。
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