Open AccessWide locking range frequency tripler based on a dual‐band VCO
Author(s) -
Zhou H.F.,
Shum K.M.,
Chan C.H.
Publication year - 2020
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.2020.1795
Subject(s) - voltage controlled oscillator , transformer , electrical engineering , multi band device , voltage , injection locking , subharmonic , electronic engineering , materials science , engineering , physics , nonlinear system , optics , laser , quantum mechanics , antenna (radio)
A wide locking range (LR) injection locked frequency tripler (ILFT) based on a dual‐band voltage controlled oscillator (VCO) is proposed in this Letter. By rationally designing the transformer parameters, the VCO can easily realise the adjacent dual‐band operating characteristics. The ILFT has dual LRs which can easily overlap each other at a fixed bias. A subharmonic signal is also injected through the transformer for frequency locking. A wide LR of 27.1% from 69 to 90.6 GHz at an injection power of 0 dBm is achieved whereas the tripler only consumes 5.88 mW under a 0.6 V supply voltage.