A group delay compensation filter includes: a waveguide that has a first slot and that is configured to transmit a signal; and a first dielectric resonator that includes: a first dielectric, a first metal layer formed over a surface of the first dielectric, and a first opening provided in the first metal layer, wherein the first dielectric resonator is in contact with the waveguide with the first opening coupled to the first slot, and wherein the first dielectric resonator is configured to compensate group delay in a first frequency band of the signal.

The present disclosure relates to a tunable waveguide filter input/output coupling arrangement comprising a waveguide part, a coupling iris part and a tunable filter part. The waveguide part runs along a longitudinal extension and has a waveguide width extending perpendicular to the longitudinal extension, and is electrically connected to the tunable filter part by means of the coupling iris part which comprises an opening between the waveguide part and the tunable filter part. The opening is positioned at a certain position along the longitudinal extension. The waveguide part comprises a stub part that has a certain stub length along the longitudinal extension, between an electrical short-circuit end plate and an edge of the opening that is closest to the end plate, where the stub part also has a stub width extending perpendicular to the longitudinal extension.

The present disclosure relates to a tunable waveguide filter input/output coupling arrangement comprising a waveguide part, a coupling iris part and a tunable filter part. The waveguide part runs along a longitudinal extension and has a waveguide width extending perpendicular to the longitudinal extension, and is electrically connected to the tunable filter part by means of the coupling iris part which comprises an opening between the waveguide part and the tunable filter part. The opening is positioned at a certain position along the longitudinal extension. The waveguide part comprises a stub part that has a certain stub length along the longitudinal extension, between an electrical short-circuit end plate and an edge of the opening that is closest to the end plate, where the stub part also has a stub width extending perpendicular to the longitudinal extension.

A low-profile CTS flat-plate array antenna includes a radiating layer, a mode switching layer and a feed network layer which are sequentially arrayed from top to bottom. The mode switching layer comprises a first metal plate and a mode switching cavity array arranged on an upper surface of the first metal plate and comprising 2.sup.2n mode switching cavities arrayed in 2.sup.n rows and 2.sup.n columns, wherein n is an integer greater than or equal to 1. Each mode switching cavity includes a first rectangular cavity, a second rectangular cavity, a third rectangular cavity, a fourth rectangular cavity and a fifth rectangular cavity which are sequentially connected from left to right. The 2.sup.n mode switching cavities located in each row are sequentially connected end to end.

The present disclosure relates to waveguide band-stop filter arrangement adapted to be connected to a waveguide transmission line at a filter interface, where the waveguide transmission line is adapted for a main propagation extension. The band-stop filter arrangement comprises a first pair of cavities, where each cavity in the first pair, each first pair cavity, comprises a corresponding inductive first pair aperture arrangement that is adapted to connect the corresponding first pair cavity to the waveguide transmission line. The first pair cavities are positioned adjacent each other along a stacking extension perpendicular to the main propagation extension such that they share a first common wall and are adapted to be positioned adjacent the waveguide transmission line. The first pair of cavities comprises a first capacitive aperture arrangement in the first common wall, mutually connecting the first pair cavities.

The present disclosure relates to waveguide band-stop filter arrangement adapted to be connected to a waveguide transmission line at a filter interface, where the waveguide transmission line is adapted for a main propagation extension. The band-stop filter arrangement comprises a first pair of cavities, where each cavity in the first pair, each first pair cavity, comprises a corresponding inductive first pair aperture arrangement that is adapted to connect the corresponding first pair cavity to the waveguide transmission line. The first pair cavities are positioned adjacent each other along a stacking extension perpendicular to the main propagation extension such that they share a first common wall and are adapted to be positioned adjacent the waveguide transmission line. The first pair of cavities comprises a first capacitive aperture arrangement in the first common wall, mutually connecting the first pair cavities.

Conventional coaxial wiring devices present a problem in that the management of the manufacturing process therefor is difficult. A coaxial wiring device according to the present invention includes a first member, a second member, and a conductor plate. The first member (10) and the second member (30) include, when a line that connects a first port and a second port is denoted by a reference line, a first groove (11) that has a central point on the reference line and extends in a direction that intersects with the reference line; a second groove (12) that connects one end (FN1) of the first groove (11) and the first port; a third groove (13) that connects the other end (FN2) of the first groove (11) and the first port and has a shape that is line symmetrical to the second groove (12) with respect to the reference line; a fourth groove (14) that connects one end (FN1) of the first groove (11) and the second port; and a fifth groove (15) that connects the other end (FN2) of the first groove (11) and the second port and has a shape that is line symmetrical to the fourth groove (14) with respect to the reference line.

Conventional coaxial wiring devices present a problem in that the management of the manufacturing process therefor is difficult. A coaxial wiring device according to the present invention includes a first member, a second member, and a conductor plate. The first member (10) and the second member (30) include, when a line that connects a first port and a second port is denoted by a reference line, a first groove (11) that has a central point on the reference line and extends in a direction that intersects with the reference line; a second groove (12) that connects one end (FN1) of the first groove (11) and the first port; a third groove (13) that connects the other end (FN2) of the first groove (11) and the first port and has a shape that is line symmetrical to the second groove (12) with respect to the reference line; a fourth groove (14) that connects one end (FN1) of the first groove (11) and the second port; and a fifth groove (15) that connects the other end (FN2) of the first groove (11) and the second port and has a shape that is line symmetrical to the fourth groove (14) with respect to the reference line.

Conventional coaxial wiring devices present a problem in that the management of the manufacturing process therefor is difficult. A coaxial wiring device according to the present invention includes a first member, a second member, and a conductor plate. The first member (10) and the second member (30) include, when a line that connects a first port and a second port is denoted by a reference line, a first groove (11) that has a central point on the reference line and extends in a direction that intersects with the reference line; a second groove (12) that connects one end (FN1) of the first groove (11) and the first port; a third groove (13) that connects the other end (FN2) of the first groove (11) and the first port and has a shape that is line symmetrical to the second groove (12) with respect to the reference line; a fourth groove (14) that connects one end (FN1) of the first groove (11) and the second port; and a fifth groove (15) that connects the other end (FN2) of the first groove (11) and the second port and has a shape that is line symmetrical to the fourth groove (14) with respect to the reference line.

Conventional coaxial wiring devices present a problem in that the management of the manufacturing process therefor is difficult. A coaxial wiring device according to the present invention includes a first member, a second member, and a conductor plate. The first member (10) and the second member (30) include, when a line that connects a first port and a second port is denoted by a reference line, a first groove (11) that has a central point on the reference line and extends in a direction that intersects with the reference line; a second groove (12) that connects one end (FN1) of the first groove (11) and the first port; a third groove (13) that connects the other end (FN2) of the first groove (11) and the first port and has a shape that is line symmetrical to the second groove (12) with respect to the reference line; a fourth groove (14) that connects one end (FN1) of the first groove (11) and the second port; and a fifth groove (15) that connects the other end (FN2) of the first groove (11) and the second port and has a shape that is line symmetrical to the fourth groove (14) with respect to the reference line.