Reciprocal phase shifter exhibiting negative phase shift

Claim 2

A reciprocal phase shifter apparatus comprising a section of wave guide having a longitudinal axis and pairs of parallel broad and narrow conductive wall members, a body of gyromagnetic material disposed within said section of wave guide adjacent one of the broad wall members thereof, a pair of non-magnetic dielectric elements interposed between said body of gyromagnetic material and the other one of the broad wall members, said other one of the broad wall members including an inwardly protruding longitudinally extending T-shaped portion disposed adjacent said gyromagnetic material and separating said elements, said section of wave guide supportive of traveling electromagnetic wave energy propagating in the direction of said longitudinal axis, said electromagnetic wave energy as supported in said section of wave guide being of an electrical length lambda and having longitudinally and transversely extending magnetic field components, said body of gyromagnetic material having an electrical thickness in the transverse plane of the guide and in the direction of incident wave electric field which is substantially less than one-quarter lambda and being traversed by said transversely extending magnetic field components, and means for establishing a given state of magnetization longitudinally of and within said body of gyromagnetic material so as to effect a predetermined negative phase shift in said electromagnetic wave energy propagated through said section of rectangular wave guide.

Claim 3

A reciprocal phase shifter apparatus as defined in claim 1 wherein the electromagnetic wave energy propagating within said section of wave guide is in the wrapped TE10 mode.

Claim 4

An electromagnetic wave apparatus comprising a wave guide structure having a longitudinal axis and at least first and second parallel elongated conductive members, said wave guide structure being dimensioned so as to support propagation of electromagnetic wave energy in a direction along the longitudinal axis of said wave guide structure, said electromagnetic wave energy as supported in said wave guide structure having longitudinally and transversely extending magnetic field components, an elongated body of gyromagnetic material disposed between said conductive members so as to be traversed by said transversely extending magnetic field components, a pair of elongated elements of non-magnetic dielectric material, each of said elements being disposed between said conductive members with one being positioned on either side of said gyromagnetic material, means associated with said wave guide structure for establishing a given state of magnetization within said body and longitudinally thereof, said electromagnetic wave energy as supported in said wave guide structure being of electrical wavelength lambda and said gyromagnetic material being disposed within said wave guide structure along the longitudinal axis thereof and of an electrical thickness in the transverse plane of the guide and in the direction of incident wave electric field which is substantially less than one-quarter lambda whereby to produce negative phase shift in said electromagnetic wave energy propagated through said wave guide structure.

Claim 5

An electromagnetic wave apparatus comprising a wave guide structure having a longitudinal axis and at least first and second parallel elongated conductive members, said wave guide structure being dimensioned so as to support propagation of electromagnetic wave energy in a direction along the longitudinal axis of said wave guide structure, said electromagnetic wave energy as supported in said wave guide structure having longitudinally and transversely extending magnetic field components, an elongated body of gyromagnetic material disposed between said conductive members so as to be traversed by said transversely extending magnetic field components, a pair of elongated elements of non-magnetic dielectric material, each of said elements being disposed between said conductive members with one being positioned on either side of said gyromagnetic material, means associated with said wave guide structure for establishing a given state of magnetization within said body and longitudinally thereof, said electromagnetic wave energy as supported in said wave guide structure being of electrical wavelength lambda and said gyromagnetic material being disposed within said wave guide structure along the longitudinal axis thereof and of an electrical thickness in the transverse plane of the guide and in the direction of incident wave electric field which is substantially less than one-quarter lambda whereby to produce negative phase shift in said electromagnetic wave energy propagated through said wave guide structure.

Claim 6

An electromagnetic wave apparatus comprising a wave guide structure having a longitudinal axis and at least first and second parallel elongated conductive members, said wave guide structure being dimensioned so as to support propagation of electromagnetic wave energy in a direction along the longitudinal axis of said wave guide structure, said electromagnetic wave energy as supported in said wave guide structure having longitudinally and transversely extending magnetic field components, an elongated body of gyromagnetic material disposed between said conductive members so as to be traversed by said transversely extending magnetic field components, means associated with said wave guide structure for establishing a given state of magnetization within said body and longitudinally thereof, said gyromagnetic material being disposed within said wave guide structure between said conductive members and adjacent one of them, and a pair of elongated elements of non-magnetic dielectric material disposed between said gyromagnetic material and the other one of said conductive members, said other one of said conductive members having an inwardly protruding longitudinally extending T-shaped portion disposed adjacent said gyromagnetic material and separating said pair of elongated elements of non-magnetic dielectric material.

Claim 7

An electromagnetic wave apparatus comprising a wave guide structure having a longitudinal axis and at least first and second parallel elongated conductive members, said wave guide structure being dimensioned so as to support propagation of electromagnetic wave energy in a direction along the longitudinal axis of said wave guide structure, said electromagnetic wave energy as supported in said wave guide structure having longitudinally and transversely extending magnetic field components, an elongated body of gyromagnetic material disposed between said conductive members so as to be traversed by said transversely extending magnetic field components, means associated with said wave guide structure for establishing a given state of magnetization within said body and longitudinally thereof, said gyromagnetic material being disposed within said wave guide structure between said conductive members and adjacent one of them, and a pair of elongated elements of non-magnetic dielectric material disposed between said gyromagnetic material and the other one of said conductive members, said other one of said conductive members having an inwardly protruding longitudinally extending T-shaped portion disposed adjacent said gyromagnetic material and separating said pair of elongated elements of non-magnetic dielectric material.

Claim 8

An electromagnetic wave apparatus as defined in claim 4 wherein the electromagnetic wave energy propagating within said wave guide structure is in the wrapped TE10 mode.

Claim 9

An electromagnetic wave apparatus comprising a wave guide structure having a longitudinal axis and at least first and second parallel elongated conductive members, said second parallel elongated conductive member including an inwardly protruding longitudinally extending T-shaped portion having a part connected to said second conductive member and perpendicular thereto and a part parallel to said second conductive member and connected to the end of said first part opposite its connection to said second conductive member, said wave guide structure being dimensioned so as to support propagation of electromagnetic wave energy in a direction along the longitudinal axis of said wave guide structure, said electromagnetic wave energy as supported in said wave guide structure having longitudinally and transversely extending magnetic field components, an elongated body of gyromagnetic material disposed between said conductive members so as to be traversed by said transversely extending magnetic field components, a pair of elongated elements of non-magnetic dielectric material, the parallel part of said T-shaped portion disposed adjacent said gyromagnetic material, the perpendicular part of said T-shaped portion separating said pair of elongated elements, means associated with said wave guide structure for establishing a given state of magnetization within said body and longitudinally thereof, said electromagnetic wave energy as supported in said wave guide structure being of electrical wavelength lambda , said gyromagnetic material being disposed within said wave guide structure along the longitudinal axis thereof and of an electrical thickness in the transverse plane of the guide and in the direction of incident wave electric field which is substantially less than one-quarter lambda whereby negative phase shift in said electromagnetic wave energy propagated through the wave guide structure is obtained.

Claim 10

An electromagnetic wave apparatus comprising a wave guide structure having a longitudinal axis and at least first and second parallel elongated conductive members, said second parallel elongated conductive member including an inwardly protruding longitudinally extending T-shaped portion having a part connected to said second conductive member and perpendicular thereto and a part parallel to said second conductive member and connected to the end of said first part opposite its connection to said second conductive member, said wave guide structure being dimensioned so as to support propagation of electromagnetic wave energy in a direction along the longitudinal axis of said wave guide structure, said electromagnetic wave energy as supported in said wave guide structure having longitudinally and transversely extending magnetic field components, an elongated body of gyromagnetic material disposed between said conductive members so as to be traversed by said transversely extending magnetic field components, a pair of elongated elements of non-magnetic dielectric material, the parallel part of said T-shaped portion disposed adjacent said gyromagnetic material, the perpendicular part of said T-shaped portion separating said pair of elongated elements, means associated with said wave guide structure for establishing a given state of magnetization within said body and longitudinally thereof, said electromagnetic wave energy as supported in said wave guide structure being of electrical wavelength lambda , said gyromagnetic material being disposed within said wave guide structure along the longitudinal axis thereof and of an electrical thickness in the transverse plane of the guide and in the direction of incident wave electric field which is substantially less than one-quarter lambda whereby negative phase shift in said electromagnetic wave energy propagated through the wave guide structure is obtained.