Open AccessFrequency stability and phase noise performance of X‐band to Ka‐band active multiplier
Author(s) -
BaraMaillet R.,
Creedon D.L.,
Parker S.R.,
Le Floch J.M.,
Tobar M.E.
Publication year - 2015
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2015.1952
Subject(s) - frequency multiplier , phase noise , dbc , hydrogen maser , physics , frequency offset , frequency standard , allan variance , microwave , sideband , atomic physics , optics , electrical engineering , atomic clock , optoelectronics , engineering , mathematics , channel (broadcasting) , statistics , cmos , quantum mechanics , standard deviation , orthogonal frequency division multiplexing
The performance of an active frequency doubler used to generate a pump signal for a solid‐state microwave amplification by stimulated emission of radiation (MASER) based on paramagnetic impurity ions in sapphire is reported. The frequency doubler has been characterised in terms of phase noise, power dependence and frequency stability (Allan variance) for an output frequency range between 20 and 40 GHz. With the measurement system referenced to a 10 MHz hydrogen MASER, the doubler exhibits a single sideband phase noise of ∼−108 dBc/Hz at 1 Hz offset frequency, from which an upper limit fractional frequency instability of about 2 × 10 −16 at 1 s integration time is estimated.