Next, we consider the Maxwell's eigenvalue problem for a coaxial cavity, the domain is
where a and b are inner and outer radii of this PEC coaxial cavity, respectively.
The coaxial cavity is composed of three metals applied in the project, where an integrated-metal structure can only be achieved through the corresponding connections, as shown in Figure 1(b).
A screw is used to form a metal connection between the cavity and the inner conductor and to enclose the coaxial cavity.
Schunemann, "Numerical study of mode competition in coaxial cavity
gyrotrons with corrugated insert," Int.
The five projects are: a contract with Framatome ANP for the manufacture of a shield prototype for primary wall modules at the ITER reactor (Euro 1,167,000); a contract with Thales Electron Devices for the manufacture of a 2 GW coaxial cavity
gyrotron development prototype as a source electromagnetic waves (Euro 2,550,000); a contract with E-Zanon for additional work to a previous contract for the manufacture of 8 capacitor flanges and 8 antenna strap flanges (Euro 42,500); a contract with ManTurbo for additional work for the manufacture of Dummy Bellows Assembly, additional set of Lip Seals and an Upper Bracket at the JET reactor (Euro 75,700); and a contract with Carbone Lorraine for the further manufacture of Carbon-carbon composite tiles (Euro 17,816).
The illustrated examples include a lumped element, Chebishev, bandpass filter using [phi]-type resonators, a coaxial cavity bandpass filter using [lambda]/8 resonators with capacitive tuning (comb-line), a coaxial cavity bandpass filter using [lambda]/4 resonators (interdigital) and a half wavelength via-hole direct-coupled filter.
COAXIAL CAVITY BANDPASS FILTER [lambda]/8 RESONATORS
It consists of a coaxial cavity and several lumped capacitances.
The dimensions of external diameter, internal diameter and length of coaxial cavity are a, b and h, respectively.
In a low loss circuit, such as a coaxial cavity
or waveguide cavity, they are able to generate 100 W of peak power at room temperature.
The coaxial cavity
radius is increased where the Rexolite disks are placed, in order to maintain a constant characteristic impedance.