Extensions of the Capabilities of a Balle-Flygare Microwave Spectrometer

A series of improvements has been made on the Balle-Flygare spectrometer, covering several aspects of the operation of the instrument. Changes were made on the method for coupling signals in and out of the resonator, resulting in an improvement of signal strength ranging from a factor of 2 at high frequencies to about 100 at low frequencies. All of the electronics in the original instrument have been replaced. The sensitivity of the instrument has been improved substantially by the use of low-noise detectors and by elimination of internal sources of interference. This was achieved by using a low noise synthesizer as a source for the Local Oscillator (LO) signal, and by generating the Master Oscillator (MO) signal from the LO, with a single sideband mixer.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Chemistry

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2014

Author dc:creator

• Emilsson, Tryggvi Ingvarsson

Contributors dc:contributor

• Gutowsky, H.S.

• Chemistry, Analytical
• Chemistry, Physical

Identifier

(UMI)AAI9314863

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/72278