Title :
Multi-knots Möbius Strips: Applications in oscillator circuits
Author :
Poddar, Ajay K. ; Rohde, Ulrich L. ; Itoh, Tatsuo
Author_Institution :
Synergy Microwave Corp., Paterson, NJ, USA
Abstract :
Möbius-Strip, Möbius-Coupling, Möbius-Group and Möbius-Transformations have captured the interest of RF Design engineers because of distinctive properties. The geometry of Möbius-Strip is conformal, continuous, and map one-to-one onto itself, exhibits unique coupling dynamics in such a way that signal coupled to strips doe not encounter any obstructions when travelling around the multi-knots loop, and the loop would act like an infinite transmission line, enabling large group delay and high Q-factor. In this paper, a novel multi-knot Möbius-Strips resonator based tunable signal source is discussed, and validated with the example of 23 GHz VCO, measured FOM @ 1MHz offset is -214 dBc/Hz with 4.21V, 71mA.
Keywords :
microwave oscillators; microwave resonators; transmission lines; voltage-controlled oscillators; Mobius-coupling; Mobius-group; Mobius-transformations; Q-factor; RF design engineers; VCO; current 71 mA; frequency 23 GHz; group delay; infinite transmission line; multiknot Mobius-strips resonator; multiknots loop; oscillator circuits; voltage 4.21 mV; Frequency modulation; Harmonic analysis; Indexes; Noise; Radio frequency; Voltage-controlled oscillators; Möbius-Coupling; Möbius-Group; Möbius-Strips; Möbius-Transformation; Phase Noise; Resonator;
Conference_Titel :
Microwave Symposium (IMS), 2015 IEEE MTT-S International
Conference_Location :
Phoenix, AZ
DOI :
10.1109/MWSYM.2015.7167147