Title :
A novel Mobius-coupled printed resonator based signal sources
Author :
Poddar, Ajay K. ; Rohde, Ulrich L. ; Sundararajan, D.
Author_Institution :
Synergy Microwave Corp., Paterson, NJ, USA
Abstract :
A novel Mobius-coupled printed resonator oscillators is developed in response to replacing expensive DRO (Dielectric Resonator Oscillator) for the application of synthesized signal sources in RADAR and modern microwave communication systems. One of the problems related to the Dielectric Resonator (DR) is miniaturization at lower microwave frequencies and also fabrication in integrated circuit (IC) form due to 3-Dimensional structure. Shrinking the size of planar resonators employing Mobius coupling mechanism has led to tiny (0.3 × 0.3 inches) broadband (2-8 GHz) tunable oscillators for inexpensive low phase noise signal source applications. For the validation, 2-8 GHz synthesizer was built, exhibit phase noise - 120dBc/Hz at 10 kHz offset from the carrier, settling time ~ 1 millisecond operating DC bias : 5V and 200 mA.
Keywords :
UHF oscillators; dielectric resonator oscillators; microwave oscillators; phase noise; signal sources; 3-dimensional structure; DRO; Mobius-coupled printed resonator oscillators; RADAR; broadband tunable oscillators; dielectric resonator oscillator; integrated circuit; low phase noise; microwave communication; microwave frequency; planar resonators; signal source applications; signal sources; Couplings; Phase noise; Resonant frequency; Strips; Synthesizers; Voltage-controlled oscillators; DRO; IC; Mobius Strips; RADAR; VCO;
Conference_Titel :
Microwave Symposium Digest (IMS), 2013 IEEE MTT-S International
Conference_Location :
Seattle, WA
Print_ISBN :
978-1-4673-6177-4
DOI :
10.1109/MWSYM.2013.6697691
