Abstract
Gunn diode oscillators coupled with a log-periodical microstrip antenna, were experimentally studied at frequencies 25-60 GHz. A microstrip antenna was mounted on a dielectric plate with a thickness of about a quarter of wavelength. The backside of the dielectric plate was metalized. Generated power was measured as 5 mW, that was more than 50% of maximum output power generated with the same diode, mounted into the metal waveguide cavity. The oscillation regime varied from single-mode to a noise-like one depending on the dielectric thickness and could be synchronized by an external signal. Such a quasi-optical performance of the Gunn-diode oscillator is feasible for power combining in the open resonator that is essentially promising for applications at millimetre waves.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: 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.