Proposal for a new test of the time independence of the fine structure constant α using orthogonally polarized whispering gallery modes in a single sapphire resonator
ME Tobar, JG Hartnett - Physical Review D, 2003 - APS
A new experiment to test for the time independence of the fine structure constant α is
proposed. The experiment utilizes orthogonally polarized transverse electric and transverse …
proposed. The experiment utilizes orthogonally polarized transverse electric and transverse …
Compact, high-q, zero temperature coefficient, te/sub 011/sapphire-rutile microwave distributed bragg reflector resonators
Some novel new resonator designs based on the distributed Bragg reflector are presented.
The resonators implement a TE/sub 011/resonance in a cylindrical sapphire dielectric, which …
The resonators implement a TE/sub 011/resonance in a cylindrical sapphire dielectric, which …
New method to build a high stability sapphire oscillator from the temperature compensation of the difference frequency between modes of orthogonal polarization
A new method to construct a high stability sapphire oscillator is presented. The method
relies on the anisotropic fractional temperature coefficients of frequency (TCF) of …
relies on the anisotropic fractional temperature coefficients of frequency (TCF) of …
Whispering gallery method of measuring complex permittivity in highly anisotropic materials: Discovery of a new type of mode in anisotropic dielectric resonators
The whispering gallery (WG) mode method to measure complex permittivity is applied to the
highly anisotropic material rutile. In an isotropic or slightly anisotropic material standard WG …
highly anisotropic material rutile. In an isotropic or slightly anisotropic material standard WG …
Difference frequency technique to achieve frequency-temperature compensation in whispering-gallery sapphire resonator-oscillator
A new difference frequency technique to obtain frequency-temperature compensation using
high quality anisotropic dielectric resonators is presented (patent pending). Compensation …
high quality anisotropic dielectric resonators is presented (patent pending). Compensation …
Improving the frequency stability of microwave oscillators by utilizing the dual-mode sapphire-loaded cavity resonator
The design and experimental testing of a novel control circuit to stabilize the temperature of
a sapphire-loaded cavity whispering gallery resonator-oscillator and improve its medium …
a sapphire-loaded cavity whispering gallery resonator-oscillator and improve its medium …
The dual-mode frequency-locked technique for the characterization of the temperature coefficient of permittivity of anisotropic materials
ME Tobar, GL Hamilton, JG Hartnett… - Measurement …, 2003 - iopscience.iop.org
In this work we present a new method for obtaining accurate characterization of the
temperature coefficient of permittivity (TCP) of an anisotropic crystal, which we call the dual …
temperature coefficient of permittivity (TCP) of an anisotropic crystal, which we call the dual …
Temperature compensation of the difference frequency between modes of orthogonal polarization in anisotropic dielectric resonators
A new method to construct frequency-temperature compensated oscillators based on
anisotropic dielectric resonators is presented. The method relies on the anisotropic fractional …
anisotropic dielectric resonators is presented. The method relies on the anisotropic fractional …
High-Q factor frequency-temperature compensated sapphire Bragg distributed resonator
A new sapphire TE^ sub 10δ^ resonator was constructed with a novel support structure
made from sapphire and rutile (patent pending). The amount of rutile was chosen to act as …
made from sapphire and rutile (patent pending). The amount of rutile was chosen to act as …
Accurate characterization of the temperature coefficient of permittivity of sapphire utilizing the dual-mode frequency locked technique
ME Tobar, GL Hamilton, JG Hartnett… - … and PDA Exhibition …, 2003 - ieeexplore.ieee.org
In this work we present a new method to obtain accurate characterization of the temperature
coefficient of permittivity (TCP) of an anisotropic crystal, which we name the dual-mode …
coefficient of permittivity (TCP) of an anisotropic crystal, which we name the dual-mode …