The dual-mode double-gap resonator with asymmetrrical strip line on the suspended ceramic substrate
A new dual-mode double-gap resonator on the basis of asymmetrical suspended stripline for miniature klystron type microwave tubes with field emitter arrays (FEA) cathodes was investigated. The resonator has a smaller size and mass when a doublegap capacitive segment of each quasi-lumped resonator consists of two assimmetrical strip conductors on opposite sides of the substrate and both inductive segments are grounded. This resonance circuit has two oscillation modes (anti-phase and in-phase). On the basis of the 3-D modeling found that such oscillatory systems can achieve the excitation of these modes with multiplicity of frequencies to = 2 with a good efficiency of interaction of electrons with microwave fields.
Research of electrodynamic characteristics of a double-gap Klystron resonator with quasi-fractal microstrip elements
Electrodynamic characteristics of a double-gap klystron resonator with the inductive quasi- fractal microstrip elements on the suspended ceramic substrate have been investigated. The developed resonator can find application in micro vacuum klystron devices in one - and multi-frequency mode of operation.
Effect of difference in odd-and even-mode wavelengths on a parallel-coupled bandpass filter
The difference in odd- and even-mode wavelengths on a parallel-coupled bandpass filter leads to an asymmetric filter response. This asymmetry may be corrected by defining an equivalent dielectric constant, by means of which the lengths of the filter sections are to be computed.