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High Power Intermodulation Measurements up to 30 W of High Temperature Superconducting Filters
53rd ARFTG Conference Digest
We have demonstrated a high power intermodulation measurement set-up capable of delivering 30 W in each of two fundamental tones. For closely spaced frequencies (< 35 MHz), the dynamic range of the measurement is limited by the nonlinear performance of the mixer in the front end of the HP71210C spectrum analyzer. A tunable TE011mode copper cavity was fabricated in which one of the endwalls could be adjusted shifting its resonant frequency between 5.7 and 6.6 GHz. Since the Q-value of thisdoi:10.1109/arftg.1999.327332 fatcat:673uhzffjjdgpfueiz7mfwwzrq