Title :
Dielectric Lens Utilization for Fabry-Perot Resonator Optimal Coupling
Author :
Piksa, Petr ; Cerny, Petr ; Zvanovec, Stanislav ; Mazanek, Milos ; Urban, Stepan
Author_Institution :
Dept. of Electromagn. Field, Czech Tech. Univ. in Prague, Prague
Abstract :
This paper introduces the Fabry-Perot resonator designed for the frequency band 18-80 GHz. The Fabry-Perot improvement using a hyperbolical lens, which transforms the spherical wave, radiated by the standard horn antennas to the plane wave irradiating the coupling foil of the resonator is discussed. This approach helps to efficiently couple the energy into and out of the resonator. The quality factors (loaded as well as unloaded) were evaluated from the measured frequency responses of the resonances. These quality factors show the effectiveness of used lenses and functionality of the resonator within the frequency band 75-110 GHz, which is higher than the designed band.
Keywords :
Fabry-Perot resonators; Q-factor; horn antennas; lenses; microwave photonics; optical couplers; optical design techniques; Fabry-Perot resonator; dielectric lens; frequency 18 GHz to 80 GHz; frequency 75 GHz to 110 GHz; horn antennas; hyperbolical lens; quality factors; resonator coupling; Antenna measurements; Dielectric resonator antennas; Fabry-Perot; Frequency measurement; Horn antennas; Lenses; Optical design; Q factor; Resonance; Resonant frequency;
Conference_Titel :
Microwave Conference, 2008. EuMC 2008. 38th European
Conference_Location :
Amsterdam
Print_ISBN :
978-2-87487-006-4
DOI :
10.1109/EUMC.2008.4751613
