Power splitters are used to split power in any ratio by choosing the correct values of resistors and configuration. They provide accurate an impedance match over a wide band of frequencies.  Power splitters are used in a variety of different configurations to divide power.

The most common power dividers are two-way power dividers, and they are made in two configurations Star and Delta.

Star format is used more than Delta format. All the series resistors at star point are equal. The value of the resistance is equal to the characteristic impedance divided by three. Since the power is dissipated in these resistors, it is necessary to remember that power rating should be enough to dissipate the expected levels.

In Delta format, the value of the resistance of resistors is equal to the characteristic impedance. Therefore, any of them can be used as the input and the other two points can be used as output.

Advantages of Power Splitter

• Simple to Use – Splitters are formed of only resistors connected in the desired format. So they are easy to use. You need to keep in mind that why and which splitter you are using.
• Affordable – Because these are simple, they can be easily made at low cost.
• Frequency Response – You can buy with desired frequency response.  They are typically offered as 2 3 ,4,8,16 and 32 way

You can buy a wide range of power splitters by contacting sales@raditek,com online based on your requirement.

Power Splitters are used in a multitude of applications as they are used to split the power between two or more ports. These are also known as power dividers, and when a power splitter is used in the opposite direction it works as a power combiner. However, there is an insertion loss and a splitting loss of 3db per junction. They also exhibits excellent phase and amplitude balance.

There are two types of power splitters Resistive, and Hybrid Power Splitter and both of them are used for different purposes. Let’s have a look at both of these –

Resistive Power Splitters

This type of splitter uses resistors. These are easy to make and low cost, but the only limitation is insertion loss. Because of the presence of resistor, insertion loss is high. However, these are good at maintaining the characteristic impedance of the system.

Hybrid Power Splitters

Hybrid splitters are the device that uses transformers and are better than resistive power splitter because they provide low levels of loss. However, hey have some physical losses in the transformers, and one of the major losses arise from the splitting process since the same signal is shared between all the outputs.

You can buy any of the power splitters according to your requirement. You can find a wide range of selection of both types of power splitters on the Raditek website.

Amplifiers RF are used to amplify signals to the desired magnitude. There are different types of amplifiers used for various purposes. If you are looking for one, here are the types which would help you to come up with the one you need.

Broadband

Broadband Amplifiers are used to get moderate gain over a wide bandwidth while it maintains low noise figure. These are best used at the front-end of the antenna within the receiver circuitry.

Gain Block

Gain Block Amplifiers are similar to the above at everything other than providing better gain, but they are not able to maintain a low noise figure. They are best used in RF, IF and microwave transmitter applications.

Variable Gain

Variable gain amplifiers are complex ones because as the name suggests, variable gains can be obtained which are controllable and sometimes programmable. These are best used as the part of a closed-loop control circuit.

Low Noise Amplifier are used to amplify very weak signals to the working signal as output without introducing substantial phase noise. They are best used as the input of the antenna where signal power needs to be increased.

Power amplifiers come in two forms Coaxial and Waveguide Power Amplifiers which are used to convert signals with a small power from radar and communication equipment to high powered transmissions which are then sent to an antenna. Raditek solid state amplifiers include either Gallium Arsenide (GaAs) or Gallium Nitrate (GaN) active devices: these are the devices that do the actual amplification. Simplistically GaAs has the best linearity and GaN the best efficiency.

All types of Amplifiers are available from Raditek Amplifiers are offered in Frequency bands covering 1MHz to 96GHz and Power Ranges a few mille watts to 15 Kilo watts.

An LNB (Low Noise Block Downconverter) is a device mounted at the focus of the satellite dish to receive signals and transmit them through the cable to the end point at the modem receiving side. Its performance may degrade over time due to exposure to weather conditions and continued use. You must check it at times to confirm if it is working well or not.

Here are the steps to check a satellite LNB.

After observing its physical conditions, you should test it with a satellite signal meter following a few given steps.

1. First of all, disconnect the power of satellite TV receiver or Satcom modem and then check the LNB. You should replace it if the casing which encloses LNB is damaged.

2. Check the joints, if they are loose, screw them, or if they are corroded, you will have to replace it with a new one.

3. Now check the LNB using satellite signal meter. Unscrew it from LNB’s signal output jack and screw one of its fly-lead into the input socket into the digital satellite signal meter which is powered with a battery. Further, screw the other end into the output jack on the Low Noise Block.

4. Now, read the signals in the meter. If there are no or low signal, LNB needs to be changed.

This way you can check your Low Noise Block on your own and place an order online if you find it damaged or not working. You can find a wide range of LNBs at an affordable price on the Raditek web site www.raditek.com

A BUC (Block Up converter) is used in a satellite communications UP LINK A LNB (Low Noise Block Converter) is used in a satellite communications DOWN LINK

BUC (Block Up converter) It converts the radio signals from a lower frequency to higher to transmit to the satellite. On the other hand LNB (Low Noise Block Converter) collects the radio waves from the satellite and converts them to a signal sent to the modem at the endpoint through a cable. The common thing between them is that both of these are used in VSAT (Very Small Aperture Terminal) SATCOM transmission systems.

Let’s learn about a few more differences between them –

Block Up converter

• The first application of BUC is Frequency conversion. It converts lower L band frequency received to the higher frequency.

• It boosts the amplitude level of the RF signal that has been converted, and the process is called amplification.

• It costs less if used in the place of two separate modules, i.e. up converter and amplifier.

• It is placed between modulator output (satellite modem) and antenna.

Low Noise Block Converter

• The first function of LNB is to avoid distortion. It maintains CNR (carrier to Noise Ratio) while boosting the amplitude level of received RF signal.

• When it comes to Frequency conversion, it works opposite BUC. It converts higher frequency to lower L Band.

• It can be used in place of two separate modules, i.e. LNA and down converter which makes it cost less and easy to install.

• It is placed between the antenna input and the satellite modem.

Although both are used in VSAT, they have different functions to perform. You can find a wide range of Block Up converter and Low Noise Block Converter on the Raditek web site www.raditek.com

A Band Pass Filter (BPF) is a device used to filter signals. If a user wants to pass the signals only between two specific frequencies he uses a Band Pass Filter. It passes only the signals falling between a set range and discriminates against the signals at frequencies lower and higher from that range.

These are two types of Band Pass Filter called Active and Passive. Active filters use external source of power to operate and employ active components like integrated circuits and transistors. On the other hand, Passive BPF requires no external source of power and uses passive components like capacitors and inductors.

The ranges set are called f1 and f2, the frequency comes at the center of these two and is called f0, and the range of frequencies falling between f1 and f2 is called ‘filter pass band.’ These are primarily used in wireless transmitters and receivers.

In transmitters, it enables data flow at desired speed because it limits the frequency of the output signals to the minimum necessary. In a receiver, it lets the frequencies of selected range to pass in the receiver to be decoded. It also optimizes the signal-to-noise ratio of the receiver.

Band Pass Filter in both transmitters and receivers allows the maximum number of signals to be transferred in a system along with this it also minimizes the interference among signals. You can view a wide range of Band Pass Filters online at the Raditek web site www.raditek.com. All types in different formats can be found. Research and choose one of our high-quality Band Pass Filters.

Amplifiers are developed to amplify weak signals. They are available in various types to fulfil different requirements of users. Let’s discuss the types and their uses –

Low Noise Amplifier (LNA)

It performs the same function of amplifying the signals from very low power and without significantly degrading its signal-to-noise ratio. It is named LNA after this specialty. A conventional amplifier increases both the signal and noise received in the input. It is majorly used in medical instruments, radio communications systems, and electronic equipment, etc.

Amplifiers RF

These devices amplify the varying input signals and produce the output with larger amplitude with varying signals in the same way as in input. They are available in different types such as Low noise, Pulse, Bi-directional, Multi-carrier, and Buffer. Its applications include defence components, electromagnetic compatibility (EMC) testing, medical diagnostics, and communications testing.

Microwave Amplifiers

Microwave amplifiers or Traveling wave tube amplifiers (TWTAs) are designed for high power amplification at low microwave frequencies. They are used to amplify across a broad spectrum of frequencies. However, usually. Its applications are Passive Intermodulation Testing (PIM), Intermodulation Testing (IM), and Adjacent Channel Power Testing. It is also used for Multi-tone testing, Power handling, EM Immunity Testing, and High Signal Level Testing, etc.

Solid State Power Amplifier (SSPA)

SSPA is the alternative to applications using Traveling Wave Tube (TWT) Amplifiers currently. It is preferred because of its high performance and reliability, and most importantly it is cost effective. It is used in Airborne, Missile, Radars, and Communications.

You can buy any of them based on your requirements. All the types in various variants are available online at the Raditek’s website www.raditek.com

A Block Upconverter or BUC is used in both Commercial and Military Markets for transferring data a from a ground-based unit to a satellite and then redirect to another ground-based unit. It makes the BUC an essential device for communication broadcast systems like the Internet, television as well as for weather systems. It is a most used device for government agencies as it is perfect at long distance communications.

Block Up Converter uses phase-locked loop local oscillators and optionally uses an external frequency of 10 MHz to maintain the correct transmitted frequency. It converts frequencies from L-band to any of the required bands like S, C, X Ku and Ka band.

There are two other separate bands consisting of electromagnetic waves. These two bands are 40 – 60 GHz for tracking, 1 – 2 GHz for communication.

C band is used for long-distance communications like TV and Internet broadcasting systems. Various bands are used in radars including Ku-band referring to the frequencies under the K band and Ka-band refers to the frequencies above K band.

You can find a wide range of types and variants of Block Up Converter on the Raditek web site www.raditek.com Read the description carefully before ordering the product and you can also contact 1-408-266-7404 in case of any colarification. You must ensure ordering a high-quality Block Upconverter to ensure desired efficiency and longevity of your satcom communication.

Waveguide circulators are devices with three ports developed to create isolation between transmitted and received signals. These are commonly used for electronically steered antenna (AESA) arrays, telecommunications applications, and satellite communications etc.

A waveguide isolator is a modified circulator having one port terminated with a matched impedance. Both the devices are typically used for preventing high powered transmitter outputs interfering with sensitive receiver circuitry. It efficiently does so by separating received signals at the input of the antenna from the transmitter’s signals.

Most of the circulators that are based on passive ferromagnetic technologies are coaxial or waveguide packaged devices. These types of circulators work best in their frequency range of operation by providing very high isolation. As compared to cavity duplexers being used for in-building telecommunications installations and base stations.

Both of these are used in the applications ranging from hundreds of megahertz to tens of gigahertz, it makes them perfect for operations in radar and communication bands. Many factors limit the frequency bandwidth of operation of a circulator like the geometry of the magnetic material used, the impedance matching network of the circulator, and the design of the transmission line along with manufacturing techniques and the types of ferrite.

The performance of waveguide circulators and isolators is measured on the parameters of isolation, bandwidth, and insertion loss etc. Other important factors that should be considered are power handling, size, interconnect technology, and temperature range.

You can find a wide range of waveguide isolators and circulators catering to your different needs on the Raditek website www.raditek.com

Microwave Amplifiers are used to amplify microwave signals. They are used in all Microwave Terrestrial Radio links, Satellite Communications and throughout the Electromagnetic Compatibility (EMC) testing industry.

There are four types of Microwave Amplifiers, and you must choose the one according to your needs.

Low Noise Amplifiers

LNA or Low Noise Amplifiers increases the power of the signal and minimize the additional noise. They are designed to produce over 40 dB of signal gain with less than 1 dB of noise magnitude.

Linear Signal Amplifier

The Linear Signal Amplifier is the “gain block” of the system. It is a generic amplifier. So, there is no determining factor of the power gain in the system.

Driver Amplifier

Driver Amplifier provides maximum system performance while being discrete. They are used in state of the art electronic warfare, and instrumentation. Testing and measurement applications also possess driver amplifiers.

Power Amplifiers

Power amplifiers offer the final gain in the output signal as it boosts the signal which is already at a relatively high-level. The noise figure in it is not critical because noise output is heavily attenuated along with the signal.

These are four types of microwave amplifiers used for various objectives and in different applications. You can buy all of these from Raditek Inc.