Abstract: An apparatus for perturbation method electrical permittivity measurements of a sample comprises a waveguide body having a first end, a second end, an upper wall, and a lower wall, a first shorting plug disposed within the waveguide body proximate the first end, a second shorting plug disposed within the waveguide body proximate the second end, a first threaded connector mount attached to the upper wall of the waveguide body at a first position along a length of the waveguide body, a second threaded connector mount attached to the upper wall of the waveguide body at a second position along a length of the waveguide body, and first and second apertures formed centrally in the upper wall and lower wall, respectively, of the waveguide body.

Abstract: Waveguide devices and methods for radio-frequency applications. In some embodiments, a radio-frequency waveguide can include a dielectric block having a first edge that joins a mounting surface and a first adjacent surface. The waveguide can further include a conductive coating that substantially covers the dielectric block, and defining a wrap-around opening that exposes the dielectric block along the first edge. The wrap-around opening can include a strip on the first adjacent surface along the first edge and a strip on the mounting surface along the first edge, such that the first edge of the dielectric block is continuously exposed within the wrap-around opening.

Abstract: Disclosed are methods of forming a single-piece magnetically tunable ferrite rods that can be used for radio-frequency (RF) applications, including using synthetic garnets. This can include methods of forming cellular towers and antennas. In some embodiments, a separate tuner need not be used in the resonator during magnetic tuning. Examples of fabrication methods and RF-related properties are disclosed.

Abstract: Apparatus and methods for testing of patch antennas are provided herein. In certain configurations, a method of electronic testing of patch antennas includes moving a patch antenna having a planar antenna element onto a test fixture using an automated handler, including positioning the patch antenna onto a portion of the test fixture between a first probe and a second probe. The method further includes coupling a test signal from the first probe to the planar antenna element without physically contacting the planar antenna element with the first probe, coupling the test signal from the planar antenna element to the second probe without physically contacting the planar antenna element with the second probe, and measuring a center frequency of the patch antenna based on an amount of coupling of the test signal from the first probe to the second probe by way of the planar antenna element.

Abstract: Apparatus and methods for testing of patch antennas are provided herein. In certain configurations, a method of electronic testing of patch antennas includes moving a patch antenna having a planar antenna element onto a test fixture using an automated handler, including positioning the patch antenna onto a portion of the test fixture between a first probe and a second probe. The method further includes coupling a test signal from the first probe to the planar antenna element without physically contacting the planar antenna element with the first probe, coupling the test signal from the planar antenna element to the second probe without physically contacting the planar antenna element with the second probe, and measuring a center frequency of the patch antenna based on an amount of coupling of the test signal from the first probe to the second probe by way of the planar antenna element.

Abstract: Apparatus and methods for testing of patch antennas are provided herein. In certain configurations, a method of electronic testing of patch antennas is provided. The method includes positioning a patch antenna onto a test fixture, coupling a test signal from a first probe to the patch antenna, coupling the test signal from the patch antenna to a second probe, and measuring one or more electrical parameters of the patch antenna based on an amount of coupling of the test signal from the first probe to the second probe via the patch antenna. Thus, patch antennas can be measured via a non-destructive process, in which no direct electrical connection to the patch antenna's planar antenna element is needed.

Abstract: Disclosed are methods of forming a single-piece magnetically tunable ferrite rods that can be used for radio-frequency (RF) applications, including using synthetic garnets. This can include methods of forming cellular towers and antennas. In some embodiments, a separate tuner need not be used in the resonator during magnetic tuning. Examples of fabrication methods and RF-related properties are disclosed.

Abstract: Disclosed are single-piece magnetically tunable ferrite rods that can be used for radio-frequency (RF) applications, and methods of manufacturing the resonators using synthetic garnets. In some embodiments, a separate tuner need not be used in the resonator during magnetic tuning. Examples of fabrication methods and RF-related properties are also disclosed.

Abstract: Waveguide devices and methods for radio-frequency applications. In some embodiments, a radio-frequency waveguide can include a dielectric block having a first edge that joins a mounting surface and a first adjacent surface. The waveguide can further include a conductive coating that substantially covers the dielectric block, and defining a wrap-around opening that exposes the dielectric block along the first edge. The wrap-around opening can include a strip on the first adjacent surface along the first edge and a strip on the mounting surface along the first edge, such that the first edge of the dielectric block is continuously exposed within the wrap-around opening.

Abstract: An apparatus for perturbation method electrical permittivity measurements of a sample comprises a waveguide body having a first end, a second end, an upper wall, and a lower wall, a first shorting plug disposed within the waveguide body proximate the first end, a second shorting plug disposed within the waveguide body proximate the second end, a first threaded connector mount attached to the upper wall of the waveguide body at a first position along a length of the waveguide body, a second threaded connector mount attached to the upper wall of the waveguide body at a second position along a length of the waveguide body, and first and second apertures formed centrally in the upper wall and lower wall, respectively, of the waveguide body.

Abstract: Dielectric-filled surface-mounted waveguide devices and methods for coupling microwave energy. In some embodiments, a radio-frequency (RF) waveguide can include a dielectric block having a first edge that joins a mounting surface and a first adjacent surface. The RF waveguide can further include a conductive coating that substantially covers the dielectric block. The conductive coating can define a wrap-around opening that exposes the dielectric block along the first edge. The wrap-around opening can include a strip on the first adjacent surface along the first edge and a strip on the mounting surface along the first edge.

Abstract: Apparatus and methods for testing of patch antennas are provided herein. In certain configurations, a method of electronic testing of patch antennas is provided. The method includes positioning a patch antenna onto a test fixture, coupling a test signal from a first probe to the patch antenna, coupling the test signal from the patch antenna to a second probe, and measuring one or more electrical parameters of the patch antenna based on an amount of coupling of the test signal from the first probe to the second probe via the patch antenna. Thus, patch antennas can be measured via a non-destructive process, in which no direct electrical connection to the patch antenna's planar antenna element is needed.

Abstract: Dielectric-filled surface-mounted waveguide devices and methods for coupling microwave energy. In some embodiments, a radio-frequency (RF) waveguide can include a dielectric block having a first edge that joins a mounting surface and a first adjacent surface. The RF waveguide can further include a conductive coating that substantially covers the dielectric block. The conductive coating can define a wrap-around opening that exposes the dielectric block along the first edge. The wrap-around opening can include a strip on the first adjacent surface along the first edge and a strip on the mounting surface along the first edge.

Abstract: Disclosed are single-piece magnetically tunable ferrite rods that can be used for radio-frequency (RF) applications, and methods of manufacturing the resonators using synthetic garnets. In some embodiments, a separate tuner need not be used in the resonator during magnetic tuning. Examples of fabrication methods and RF-related properties are also disclosed.