coaxial cavity

coaxial cavity

[kō′ak·sē·əl ′kav·əd·ē]
(electromagnetism)
A cylindrical resonating cavity having a central conductor in contact with its pistons or other reflecting devices.
References in periodicals archive ?
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.
Third, if the electromagnetic leakage of the inner conductor is not prevented, secondary pollution may exist on the coaxial cavity through the gap and may lower the multipactor threshold value.
However, welding could cause potential problems to arise in the coaxial cavity at high-power working conditions.
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.
The second bandpass filter design example is the coaxial cavity type filter using [lambda]/8 resonators with capacitive tuning or comb-line filter, so called because the resonators are fixed to ground on a single surface in much the same configuration of the teeth of a comb, This is a very popular filter structure because a moderate value of unloaded resonator quality factor may be achieved (and therefore low loss), and because a wide rejection band is indigenous to the structure by virtue of the wide separation in resonant modes.
Resonator type: lumped element, comb-line, interdigital, coaxial cavity, dielectric
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.