Strip Braided Coaxial Cable,The Ultimate Guide

The Strip Braided Coaxial Cable is used in a wide range of applications in telecommunications, military/defence, laboratory test and measurement, industrial/commercial, etc.

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Strip Coax Cable


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What is Strip Braided Coaxial Cable?

Strip braided coaxial cable is a strip braided coaxial cable and a cable with a braided shield that improves bending and torsional resistance while maintaining electrical characteristics. 

The strip braided coaxial cable has a conductor, an insulation layer provided in a manner around the side circumference of the conductor, a shield supplied in a way around the side circumference of the insulation layer, and a sheath provided in a manner around the side circumference of the security.

The insulation layer of the Strip Coax Cable has three layers, insulation layer 1, insulation layer 2, and insulation layer 3, starting from the conductor side.

The first insulation layer of Strip Braid Cables contains a non-filled extruded layer, the second insulation layer contains a foamed layer formed non-bonded to the first insulation layer, and the third insulation layer contains a non-foamed layer formed in a manner bonded to the second insulation layer; the shield is a braided shield formed by crossing copper foil wires and bare metal wires.

Strip Braid Cables, a type of cable with an enclosing tubular insulation layer surrounding the inner conductor and a tubular conductive shield. Many strip braided coaxial cables also have an insulating outer sheath or jacket. The term comes from the fact that the coaxial inner conductor and outer shield share a geometric axis.

The Strip Coax Cable was invented by the British engineer and mathematician Oliver Heaviside, patent designer 1880.

Strip braided coaxial cable is used with other shielded cables for lower frequency signals, such as audio signals, where the size of the cable is controlled to give an exact, constant conductor spacing, which is needed to function effectively as an RF transmission line.

In general, Strip Coax Cable media details have only one function. Generally, Strip Coax Cable media details serve only one purpose, to ensure that the body’s support is maintained and to maintain a constant distance between the conductor’s inner and outer shield.

In terms of efficiency, most practical cable manufacturers utilize a variety of hydrocarbon-based materials such as polystyrene, polypropylene, polyolefin, and synthetic to maintain structural integrity. Sometimes, strip braided coaxial cable can also carry low-frequency signals, such as audio signals or signal measurement devices.

In audio applications, in particular, the impedance of the Strip Coax Cable is not essential (it is the high-frequency performance of a cable). Generally, a coaxial cable has a certain amount of capacitance (50pF/foot is typical) and a certain amount of inductance. However, it has minimal resistance.

The outer conductor is made of a fine braid, hence the name “braided strip braided coaxial cable. This type of cable is suitable for almost all applications where a complete center conductor shield is required. 

The effectiveness of the shield is contingent on the braid as well as the thickness of the braid.

Strip Braided Coaxial Cable

With a painted-back braided cable, the shielding is not 100% effective, especially at higher frequencies. This is because the braid structure allows a small amount of energy to be radiated at short wavelengths (high frequencies).

Usually, this is not a problem; however, if a higher degree of shielding is necessary, a semi-rigid strip braided coaxial cable is recommended.

The outer shielding of flexible strip braided coaxial cable at higher frequencies is divided if the normal braid and an additional foil shield provide better shielding at higher frequencies.

Semi-rigid strip braided coaxial cable with a seamless tube outer conductor allows all RF energy to be contained in the cable. A miniature Coaxial cable is recommended for applications using frequencies above 30 GHz.

Strip braided coaxial cable combines the advantages of strip cable and Strip Coax Cable. Strip braided coaxial cable is made up of a number of tiny strip braided coaxial cables placed on one side of each other to form a flat cable.

Each strip braided coaxial cable consists of a dielectric signal conductor, an aluminum foil shield, and a lead wire in continuous contact with the said foil.

An outer insulating sheath covers the entire assembly. The main advantages of this cable are its speed and the ease of mass termination using insulation displacement technology.

Ways to Test the Shielding Performance of Strip Braided Coaxial Cable

In signal transmission, unshielded cables are more uniformly exposed to electromagnetic interference than Strip Coax cables, which can lead to communication failures, noise, and signal errors. How do we check the shielding performance of strip braided coaxial cable when we get it?

Strip Coax Cable

Checking the braided network of Strip Braid Cables

The shielding effect of Strip Braid Cables depends on the structure of its outer conductor. Usually, there is a single braided shield consisting of one braided layer, and its coverage is 70% to 95%, its shielding effect is about -50dB, single layer shielded cables are commonly used below 1GHz.

Double braided shielding, consisting of two braided layers, has a shielding effect of -75dB to -85dB, and typical applications can be up to 6GHz.

Triple Sensor shielding, consisting of two braided shields with a foil shield in the middle or, in some cases, a twisted copper tape in the first layer, can achieve a shielding effect of -90 to -100 dB. Therefore, we can measure the shielding performance of Strip Coax Cable by measuring its braided mesh.

The method is relatively straightforward: cut open the outer sheath of the Strip Braid Cables, cut a small section of the Strip Braided coaxial cable braid, and determine the number of braids. If the value matches the index given, it is judged as qualified; in addition, a single textile wire is surveyed with a spiral micrometer. The thicker the wire diameter, the better the quality at the same price.

Strip Braid Cables

Using a spectrum analyzer

Any spectrum analyzer should be able to characterize the relative shielding performance of a single strip braided coaxial cable well. However, the relative shielding performance of Strip Coax Cable varies from spectrum analyzer to spectrum analyzer, with different settings of the always frequency, resolution width, and other aspects.

Using a standard spectrum analyzer to measure the relative shielding performance of Strip Braided Cable, the start and end frequencies can be set to 2.4GHz and 2.5GHz, respectively, the resolution bandwidth set to 100kHz, and the attenuation and reference levels adjusted while getting a good display, technically speaking, a cable with excellent shielding performance will show little response.

coaxial cable stripping tool screwfix

Line injection method

A single wire, the injection wire, is used instead of the good coaxial conductor in the triaxial method. By applying a known current and voltage to the shield of the strip braided coaxial cable under test, while testing the induced voltage between the cable core and the shield, and then combining this with the equivalent circuit diagram of the wire injection method, the transfer impedance and shielding properties of the cable under test can likewise be calculated.

Protective Measures for Strip Coax Cable

Next, all walls, floors, and Strip Braided Cables access to the control room, cable mezzanines, control cabinets, and cable end panels should be protected, and the bottom and sloping upper shaft of the entrance through the floor should be closed. Open complete Strip Coax Cable channels for applications with solid covers.

Cable layers and passages should be kept clean and free from debris and rubbish, measures should be taken to prevent fires in the vicinity of the cable layers, and cable laying should be avoided to avoid heat sources such as parallel or crossed steam pipes, tunnels, or trenches for hot lines, if they have to be passed through, measures should be taken accordingly.

The importance of Strip Coax Cable is based on the principles of environmental characteristics, reliability of operation, ease of maintenance and economy, and reasonableness, and the cable should be regularly inspected, tested, and maintained in strict accordance with the relevant regulations and the lighting layer trench and fire protection facilities should be kept in good condition.

Finally, in cable trenches or cable wells, when using the spray, do not place the torch next to a hot object, if it is 10,000 volts and below, to maintain a distance of 1.5 meters or more. If it is more than 10,000 volts, then the space should be no less than 3 meters before using to check whether the oil leaks, block, how the amount of oil, etc.

coax connectors

Essentially, employing a power distribution box eliminates the need to connect each output device directly to the power source. This simplifies the circuit and increases its efficiency by preventing you from using any more wires than are strictly necessary. When you decrease your use of wires in a circuit, you save energy by preventing more electrical losses around the circuit.

Read more about Fiber Optic Connector

What are the Properties of Strip Braid Cables?

Go to the power wire and cable market. You will often hear the term shielded cable, except that the spacing between the center conductor and the shield of a strip braided coaxial cable is not strictly controlled during the manufacturing process, resulting in a non-constant impedance. 

Strip Braided Coaxial Cable1

When the impedance is significant enough to warrant the right option of 50 or 75 Ohms, then the capacitance is acceptable.

This is because Strip Braid Cables combine load termination or source termination, or both, with the cable’s distributed capacitance and distributed inductance to form the impedance. A matching termination resistance at the other end of the cable appears as resistance in all respects, whether an inch long or a mile. Capacitance is irrelevant except that it affects the impedance that has been accounted for.

Near the point at which the Strip Coax Cable, it is possible to differentiate the 75 OHM (ideal) cable that has a load of 75 ohms at the other end of the same load without interfering on the other side of the cable.

Given that there is a proper 75-ohm load at the line end, the 75-ohm resistance, the bag, and the aggregate capacitance of the cable are irrelevant.

The same applies to other coaxial cable impedances when terminating its nominal impedance. There is an effect on the cable’s characteristic impedance if the frequency is changed. If the change in impedance associated with this frequency is significant enough, the connecting cable will impedance match the load and source at some frequency and not reach the person.

But there is another effect that can cause a rapid rise time in the details of the signal loss. It has happened that the frequency-dependent loss in strip braided coaxial cable, also known as dispersion characteristics of controlled impedance cables, has different speeds at different frequencies and slightly different losses.

In specific applications for communications, two 50-ohm strips of braided cables are utilized to transmit signals that are differential in two 50-ohm blocks that are not interconnected.

The shared voltage between both coaxial cables has a double single-ended voltage. However, the net current of each is the same, which means that the cable arrangement in the two coaxial cables has a differential impedance of 100 ohms in between the two cables.

As long as the signal paths do not interact, the differential impedance is twice as high as the single-ended or way impedance differential impedance.