The present invention relates to a cavity filter. The cavity filter includes: an RF signal connecting portion spaced apart, by a predetermined distance, from an outer member having an electrode pad provided on a surface thereof; and a terminal portion configured to electrically connect the electrode pad of the outer member and the RF signal connecting portion so as to absorb assembly tolerance existing at the predetermined distance and to prevent disconnection of the electric flow between the electrode pad and the RF signal connecting portion, wherein the terminal portion is divided into a first side terminal contacted with the electrode pad and a second side terminal connected to the RF signal connecting portion, absorbs the assembly tolerance existing in a terminal insertion port, in which the terminal portion is provided, through an elastic member provided between the first side terminal and the second side terminal, and prevents disconnection of an electric flow, thereby preventing degradation in performance of an antenna device.

A tunable probe includes a first resonator, a second resonator spaced from the first resonator, and a cross-couple extending from the first resonator to the second resonator. The cross-couple includes a first substrate and a second substrate disposed between the first and second resonator to create a capacitance between the first and second resonators. The cross-couple further includes a wire connecting the first and second substrates and a dielectric surrounding the wire.

Disclosed herein is a nonreciprocal circuit element that includes a permanent magnet, a magnetic material having an insulating property, a magnetic rotator sandwiched between the permanent magnet and the magnetic material, and an external terminal. The magnetic rotator includes a center conductor connected to the external terminal, and first and second ferrite cores sandwiching the center conductor. The external terminal covers a side surface of the magnetic material without covering a side surface of the permanent magnet.

Embodiments disclosed herein include a source for a processing tool. In an embodiment, the source comprises a dielectric plate having a first surface and a second surface opposite from the first surface, and a cavity into the first surface of the dielectric plate. In an embodiment, the cavity comprises a third surface that is between the first surface and the second surface. In an embodiment, the source further comprises a dielectric resonator extending away from the third surface.

This tunable bandpass filter is provided with: a conductive member having a plurality of resonance rods protruding so as to be aligned in a single plane; a dielectric plate disposed parallel to the single plane; a drive part which is attached to the dielectric plate and drives the dielectric plate in directions parallel and perpendicular to the single plane; and a waveguide containing at least the resonance rods and the dielectric plate.

The present invention is a high Q tunable co-axial filter, which maintains a constant absolute bandwidth and a constant Q over the tuning range. The present filter can be tuned by a single rotational mechanism irrespective of the filter order. A plurality of tunable resonators is aligned on a common filter axis. Each resonator has a casing having an inner wall and a cavity. The resonators are coupled by an iris opening. A pair of end plates completes the filter casing. A rotating rod placed on the common axis of the resonated, that has a tuning post attached to it, and each post located in each resonator, is used to tune the filter.

Systems and methods for dielectric TM.sub.01 mode resonators are described herein. In certain embodiments, a system includes one or more electronic devices, wherein an electronic device a first input signal and provides an output signal. Further, the electronic device includes a conductive body enclosing a cavity, wherein the cavity has an interior surface. Additionally, the electronic device includes one or more dielectric resonators, wherein a dielectric resonator in the one or more dielectric resonators comprises two or more portions that are shaped differently than one another and has an axial center cavity formed therein. Moreover, the electronic device includes one or more tuning elements inserted through an external surface of the conductive body, the one or more tuning elements extending through the external surface into the axial center cavity, wherein a distance that the one or more tuning elements extend into the axial center cavity is adjustable.

A ceramic waveguide filter is disclosed. According to at least one embodiment of the present disclosure, a ceramic waveguide filter forming a plurality of resonant blocks including a ceramic dielectric is provided, including an input end and an output end implemented as grooves having a predetermined depth on an outer surface of the ceramic waveguide filter, a plurality of resonators implemented as grooves having a predetermined depth on an outer surface of each of the plurality of resonant blocks, and at least one or more ultra-short delay adjusters adjacent to at least one of the input end and the output end, and implemented as one or more grooves having a predetermined depth on the outer surface of the ceramic waveguide filter.

A simple and compact filtering dielectric resonator antenna comprising: a ground plane, a dielectric substrate defined on the ground plane, a dielectric resonator defined on the dielectric substrate, and a hybrid feeding line, the hybrid feeding line comprises: a microstrip line and a metallic conformal strip, and the microstrip line comprises: a microstrip main branch, a first microstrip stub and a second microstrip stub. In the present invention, a hybrid feeding line is firstly employed to a dielectric resonator antenna. It has been shown that this hybrid feeding line can not only increase the impedance bandwidth of the passband but also can introduce two radiation nulls right near the band edges. Both good filtering and radiating performances are therefore obtained without any extra filtering circuit, giving a very compact structure.

A resonator assembly and method are disclosed. The resonator assembly comprises: a resonant chamber defined by a first wall, a second wall opposing the first wall and side walls extending between the first wall and the second wall; a first resonator comprising a first resonator element and a first resonator cap, the first resonator element having a first grounded end and an first open end, the first resonator element being grounded at the first grounded end on the first wall and extending into the resonant chamber, the first resonator cap having a first grounded portion and an first open portion, the first resonator cap being grounded at the first grounded portion on the second wall and extending into the resonant chamber to at least partially surround the first open end of the first resonator element with the first open portion for electrical field loading of the first resonator element by the first resonator cap; and a second resonator comprising a second resonator element and a second resonator cap located for electrical field loading of the second resonator element by the second resonator cap, the second resonator element being located for magnetic field coupling between the first resonator element and the second resonator element. In this way, a compact resonator assembly is provided having high operational performance. The provision of resonators having resonator elements and resonator caps helps to reduce the height of the resonator assembly to around one eighth of the operating wavelength. The provision of the resonator caps helps to contain the electrical field from the resonator elements, which enables adjacent resonator elements to be located closer together to provide for enhanced magnetic field coupling therebetween.