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

fYear

2008

fDate

27-31 Oct. 2008

Firstpage

955

Lastpage

958

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2008. EuMC 2008. 38th European

Conference_Location

Amsterdam

Print_ISBN

978-2-87487-006-4

Type

conf

DOI

10.1109/EUMC.2008.4751613

Filename

4751613