Abstract
A GaAs MMIC oscillator operating around 34 GHz has been designed and tested. This circuit incorporates a novel type of on-chip injection locking configuration, removing the requirement for off-chip couplers/circulators which would normally be required for typical reflection type injection locking applications. This configuration provides a separate injection locking port on the MMIC by utilising the (normally unwanted) parasitic inductance of a via-hole at the gate resonator circuit of the oscillator. The circuit has been shown by measurement to be capable of fundamental and subharmonic harmonic locking. The circuit was also employed in a novel fashion to produce a direct phase shift keyed modulator. In this configuration the circuit was found to produce up to 157/spl deg/ of phase shift. Applications of this circuit include a stabilised local oscillator or a direct phase shift keyed modulator.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
