Title :
Microwave regenerative frequency dividers with low phase noise
Author :
Ferre-Pikal, Eva S. ; Walls, Fred L.
Author_Institution :
Nat. Inst. of Stand. & Technol., Boulder, CO, USA
Abstract :
We demonstrate regenerative divide-by-two (halver) circuits with very low phase modulation (PM) noise at input frequencies of 18.4 GHz and 39.8 GHz. The PM noise of the 18.4 to 9.2 GHz divider pair was L(10 Hz)=-134 dB below the carrier in a 1 Hz bandwidth (dBc/Hz) and L(10 MHz)=-166 dBc/Hz, and the PM noise of the 39.8 GHz to 19.9 GHz divider pair was L(10 Hz)=-122 dBc/Hz and L(10 MHz)=-167 dBc/Hz.
Keywords :
circuit noise; frequency dividers; microwave frequency convertors; phase noise; 18.4 GHz; 39.8 GHz; divide-by-two circuit; halver circuit; microwave regenerative frequency divider; phase modulation noise; 1f noise; Bandwidth; Broadband amplifiers; Circuit noise; Filters; Frequency conversion; Noise generators; Phase noise; RF signals; Radio frequency;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
