HARMONIC GENERATION AT MILLIMETER WAVELENGTHS
Abstract
A STUDY WAS CONDUCTED OF METHODS OF GENERATING MILLIMETER AND SUBMILLIMETER WAVELENGTH RADIATION BY MEANS OF NONLINEAR HARMONIC GENERATORS. Generators in which the nonlinearity derives from a bulk property such as a nonlinear permittivity or permeability are of primary interest, because of their potential for operation at high power levels. The dependence of the complex dielectric constant of several polycrystalline ferroelectric ceramics upon an applied dc electric bias field over the frequency range from 3.0 to 9.5 kmc was determined. Bias fields of 0, 5 and 10 kv/cm were employed. The ceramic ferroelectrics investigated were barium - strontium titanate mixtures with and without small percentages of Fe2O3 and Ni. An admittance type of measurement was selected to measure the relative complex dielectric constant. In this method the complex dielectric constant of a material is related to a measured admittance. The complete design of the experimental apparatus is given and the limitations of the measuring technique are evaluated. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1961
- Accession Number
- AD0267553
Entities
People
- Robert G. Pecina
Organizations
- Rutgers University–New Brunswick