Natural Oscillations of High-Q Resonance Macrostructures in Infrared and Optical Ranges on the Systems with Coupled Dielectric Resonators

2007 ◽  
Author(s):  
A. A. Trubin
Keyword(s):  
Dielectric Resonators ◽  
Natural Oscillations ◽  
High Q

Dielectric-loaded L-band filters for high-power space applications

2021 ◽  
pp. 1-11
Author(s):  
Paolo Vallerotonda ◽  
Fabrizio Cacciamani ◽  
Luca Pelliccia ◽  
Alessandro Cazzorla ◽  
Davide Tiradossi ◽  
...  
Keyword(s):  
High Power ◽  
Dielectric Resonators ◽  
Q Factor ◽  
Rf Power ◽  
Space Applications ◽  
High Q ◽  
Critical Issues ◽  
L Band ◽  
Multipactor Discharge ◽  
Filter Response

Abstract The design and first experimental results of Tx and Rx L-band bandpass filters for a high-power satellite diplexer are presented in this paper. Designed in the framework of an ESA ARTES AT project, the filters are based on TM010 mode dielectric resonators. These resonators allow for better results in terms of volume occupation with respect to other dielectric resonators still maintaining high Q-factor values (>2000). Volume saving above 30% is achieved with respect to standard coaxial filters. The filter geometries and materials have been chosen in order to improve the power-handling and to cope with related critical issues for space applications (i.e. avoid any multipactor discharge in the operating RF power range and low-PIM response). Measurements of Tx filter show good correlation with the design in terms of central frequency, BW, and unloaded Q-factor (almost 3000). Measurements of Rx filter show a worse correlation with the design in terms of filter response shape. This is ascribed to size tolerances of one of the filter resonators. Multiple analyses are ongoing to remove this degradation in the final engineering model.

scholarly journals Ultrahigh-Q system of a few coaxial disks

Nanophotonics ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Konstantin Pichugin ◽  
Almas Sadreev ◽  
Evgeny Bulgakov
Keyword(s):  
Dielectric Resonators ◽  
Destructive Interference ◽  
High Contrast ◽  
High Q ◽  
Multi Scale ◽  
Resonant Modes ◽  
Avoided Crossing ◽  
Surrounding Space ◽  
Dielectric Disk ◽  
Q System

Abstract Resonant modes of high contrast dielectric disk have finite Q-factors in the subwavelength range due to radiation leakage into the surrounding space. That leakage can be reduced considerably (a few times) by exploiting of the mechanism of destructive interference of two modes for avoided crossing of resonances (ACR) (Rybin et al. M. V. Rybin, K. L. Koshelev, Z. F. Sadrieva, et al., “High-Q Supercavity Modes in Subwavelength Dielectric Resonators,” Phys. Rev. Lett., vol. 119, p. 243901, 2017.). In the present paper we report suppression of radiation leakage by a few orders in magnitude via the ACR in the structure of three and four different coaxial disks. For fine multi-scale tuning of disks we reveal the ultrahigh-Q resonances of order 105 for the case of three disks and of order 106 for the case of four coaxial disks of equal radii.

Design of high-Q frequency-temperature compensated dielectric resonators

1999 ◽  
Vol 35 (4) ◽  
pp. 303 ◽  
Author(s):  
M.E. Tobar ◽  
J.G. Hartnett ◽  
D. Cros ◽  
P. Blondy ◽  
J. Krupka ◽  
...  
Keyword(s):  
Dielectric Resonators ◽  
High Q ◽  
Frequency Temperature
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