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Waveguide Adaptors and their Uses

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The wave guide adaptors are used for connecting the various coaxial transmission equipments and resources with each other and develops the signal harmonics in large signal operated networks. The waveguide adaptors are made in accordance with standard requirements of different signal network operating systems. These adaptors are providing the waveguide transmission port from the coaxial sources.

These adaptors are working on different bandwidths and systems. These adaptors are made up of different materials and provide supports to different application in various situations. The waveguide adaptors are having several components that include a rectangular platform that is used as housing made up of rectangular waveguide tubing.

This provides the platform for the waveguide adaptor. It is made up of the different materials as per the requirements. The other parts of a waveguide adaptor are standard waveguide flange; this is needed to support the transmission of signals. These two components are fixed on the metallic end plate the holds both these parts in connection to each other. All these components are fixed with the waveguide adaptor coaxial probe and assembly.

The coaxial probe assembly used in the waveguide adaptor is similar with the assembly used in the SMA connectors. This assembly can also be used in waveguide band pass filters with coaxial interfaces. If you are using the waveguide adaptor with the SSMA connectors then you have to make new probes according to the requirements.

The housing part of the waveguide is used to connect with the modified female to female connectors using coaxial adapter. Asides this bottom broad wall part of the waveguide have four holes for metallic tuning screws. While designing and assembling a small waveguide adaptor some fabrication is also needed that can be carried out by using the metallic alloys like as copper alloys and stainless steel. It can be taken as per the requirement and durability aspect. There are various methods of making waveguide platforms that uses the waveguide adopters and coaxial assemblies.

The technique of electro forming waveguide generation is used for the purpose of signal transmissions for the complex structures. This is quite expensive and used for large signal operating networks. It is made by electroplating the same kind of materials in different layers of the structure to be used for waveguide purpose.

Apart from this the waveguide constructions are carried out through different methods like as Dipbrazing and machining. But all these waveguide structures need to be connected to the coaxial assemblies using different types of waveguide adaptors that are considered on the basis of the typical mechanical attributes like as size and dimensions. Asides these the factors like as return loss, bandwidth support and others environmental attributes are to be considered before selecting the waveguide adapter.

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SOLT Calibration with non Insertable thru Connection

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This is a method of network calibration that is used in electronics field. It is often termed as on wafer calibration. The standards used in this calibration are termed as short open load and thru which constitutes the SOLT calibration kit. These standards are used to calculate the calibration algorithm which is important to make error free measurements. This method is carried out by connecting a short circuit, and open circuit and a load in successive manner to one port of the and the measurements are taken to complete the reflection calibration within a vector network analyzer plane.

 

This is typical calibration method that implies three impedance and one transmission standards to specify the reference plane. The three impedances are matched typically with the three standards a Short, Open, Load, and Thru which constitutes the SOLT calibration setup. While as in the other calibration methods like asTRL calibration and others the thru reflection and line standards are used to measure the calibration.

Both of the calibration methods are used and any of the calibration setup can be used to measure the performance of the network as per the availability of calibration standards and functionality of the network analyzer.

The SOLT calibration method is quite useful in deciding the measurement for network performance that is specified as per the mechanical dimensions. While performing SOLT Calibration process you must find the standard values. Then you should attach the calibration setup with the above standards to the Network Analyzer calibration port, the end of a cable, or inside a test fixture where the measurement is to be made. This is considered as the reference plane or measurement plane.

 

The network connections like as the insert-able connection like as male to female cable connection and others. These connections don’t require other external connections. The external adapters or devices are used to complete the through connection during SOLT calibration. While performing network calibration you must use all the components that are to be used in calibration or else it may result in measurement error.

 

Calibration can be done without insertable thru this is useful in handling the non-insertable devices. The simplest method of doing this is by using a set of phase-equal adapters with shorts, opens, and loads of male and female adaptors. Now by connecting one adapter to complete the through connection during calibration and then replacing it to swap by another adapter connected with the Device Under Test gives the calibration measurements.

 

This method of calibration is quite useful in designing the devices operating on the cascading networks and uses high frequencies but can be tested with insertable thru connection. It is quite useful in RF devices. Apart from this there are various other methods of calibration.