Isolators drop in or drop-in isolators, as they are normally referred to are basically used to protect other RF components in the circuitry from the excessive signal reflection that can adversely affect the performance of a system/application.  

These are predominantly used in wireless communications systems, military gadgets, applications and systems, and the cellular communication industry.

Drop-in isolators are off-the-shelf devices that come in a variety of sizes, configurations, and frequency bandwidths and can be plugged into most communications systems right away.

Raditek, on the other hand, will also provide customized isolators drop in units, if necessary, to meet the circuitry requirements of certain applications.

A Raditek Drop-in isolator is comprised of high-quality materials, such as excellent ferrite material, to ensure optimum performance over a wide temperature range.

This component has been designed and conditioned to work in the -40°C to +70°C temperature range. This ensures that the magnetic field remains stable and does not fluctuate with temperature.

Raditek also provides a variety of narrow and broad bandwidth RF and microwave isolators in drop-in designs in the frequency range of 200 MHz to 40 GHz.

Moreover, other features like phase matching, intermodulation specifications, and reverse power flowability can also be configured in the isolator on specific requests by the clients.

See the Raditek inc. website for full details.

All coupling devices have the same basic function: to transmit power, accommodate misalignments, and adjust for axial movements.

High power couplers are electronic devices that transfer calibrated electromagnetic power from a transmission line to a port, allowing it to be used in another circuit while compensating for any misalignments or axial movements.

Power couplers are passive devices and are mostly used in RF applications/systems for sampling signals, signal injection and generation, measure incident or reflected power to determine VSWR.

This component is also an important part of any hi-tech microwave systems like radars, wireless communication and telecommunications, field testing equipment, medical equipment, and DTH equipment.

There are different types of high power couplers used for system-specific applications and they are: Transmission coupler, Branch line coupler, Lange coupler, Hybrid coupler and Wave-guide coupler

Transmission line couplers keep electromagnetic waves from modifying and altering the impendence.

Branch line couplers are used in a single antenna transmitter/receiver system.

Lange couplers-A 4-port interdigitated structure used as power combiners, splitters in RF amplifiers and as well as in mixers and modulators.

Hybrid couplers perform many functions like splitting/combining signals, switching circuits, etc.

And waveguide couplers are used typically in testing and monitoring gadgets/equipment.

For narrowband, multi-octave range, and broadband applications, Raditek has a wide selection of couplers.

See the Raditek inc. website for full details.

Waveguide rotary joint is used in microwave communication systems to connect two different types of RF waveguides to achieve free rotation without performance degradation.

This device is a very crucial component of surveillance radar systems, missile systems and other scientific systems, commercial and military communication devices

Raditek supplies the top-quality waveguide rotary joints in the industry, using state-of-the-art electro-mechanical components to propagate microwave signals for a stationary to a rotary field or vise-versa.

Waveguide rotary joints are available in a variety of cross-sections-like rectangular, circular and elliptical, which are made from different materials like aluminum, brass, bronze, silver, copper, stainless steel and bi-metallic alloys in various physical dimensions.

A waveguide rotary has ports configured in a right angle to rotational axis or can have a “U-style”, “L-style” or an “I-style” configuration depending upon the system/application it is being used for.

Our ready-to-use waveguide rotary joints are guaranteed to have consistent phase linearity, and their robust housing (casing) makes them ideal for high-power applications.

For mutually suitable order size, we can also develop a customized version of the waveguide rotary joint that is uniquely suitable for your application circuits and topography, which is also certified by us for low VSWR and maximum power handling capability.

See full details on the Raditek website.

Dielectric resonator oscillators, also known as DROs, are those oscillators that use dielectric resonators as the frequency-determining element to produce signals with excellent stability, high Q, and very low phase noise.

State-of-the-art DROs manufactured by Raditek are extensively used in millimeter-wave electronic oscillators to control the radio waves generated. These are also used in bandpass filters, bandstop filters, frequency-selective limiters and dielectric resonator antenna elements.

The DROs that we manufacture are made of low-loss material that has a high dielectric constant as a result most of the electromagnetic field remains contained within the dielectric medium.

They have a very high pulling factor as compared to free-running oscillators.

The oscillators that we market come with a pre-tuned frequency; however the same can be slightly modified using mechanical or varactor tuning methods.

Raditek offers the best performing dielectric resonator oscillators in the industry with a frequency range of 300 MHz to 42 GHz and frequency stability of 5ppm in a thermal environment ranging from 0 to 50 degrees centigrade.

Besides providing top-quality ready-to-use DROs, Raditek engineers can also provide customized DROs that deliver on the performance parameters of your applications/s.

These DROs are available in the two most preferred modules – 1) DROs with connector options and 2) surface mount modules.

See full details on the Raditek website.

An RF Amplifier boosts or intensifies signals in the radio frequency range of the electromagnetic spectrum. It is used to strengthen the sensitivity of the receiver or the output of the transmitter set.

In other words, a radio frequency amplifier transforms a low-power radio frequency signal into a higher-power radio frequency signal in the range between 20 kHz to 300 GHz.

Radio frequencies are prone to accumulate additional noise from multiple sources and are easily loaded and also lack the drive capability and hence need a radio amplifier to modify and boost them up.

An RF amplifier is a solid-state RF device that provides gain, stability, power, linearity, and noise reduction to the input signal and amplifies it as per the set parameters.

Unlike its predecessors, which employed tube wave technology, the latest radio frequency amplifiers use transistors made of Gallium Arsenide (GaAs) or Gallium Nitrate (GaN). GaAs transistors have the best linearity and the GaN transistors, the best efficiency.

A well-designed RF amplifier is an essential component of communication systems such as television broadcasting, radar systems, military equipment, remote monitoring devices, high-fidelity appliances, computers, and a variety of others. See the Raditek Inc. website.

Rubidium oscillators are improvised OCXOs with an atomic rubidium clock as the output frequency control, which is regarded as a standard for precise output frequency.

Crystal oscillator frequency output is stabilized to rubidium’s ultra-fine transition of 6834682610.904 Hz.

Rubidium oscillators are the most precise time standards used to regulate applications and systems like telecommunication infrastructure, commercial television networks, and global navigation satellite systems.

These oscillators gain significance, as overtime, OCXOs frequency timing changes making the frequency pulse run faster or slower than its regular pulse beat. The rubidium section checks the frequency of quartz oscillators and adjusts it accordingly to the rubidium frequency standard.

Besides, oscillators fitted with Rb circuitry are known to be stable even in extreme temperatures in the range of -30 to +60 degree centigrade.

There are no oscillators that are completely steady and consistent.

Oscillator stability can only be maintained if its design is appropriate right from the beginning itself. As a result, it is important to build and create oscillators utilizing the most up-to-date technology, based on the circuit requirements of a bigger application/system.

There are two types of Rubidium oscillators 1) Precision Rb oscillators set to 1PPS reference input 2) Low phase noise Rb oscillators that work well for CDMA, WiMax, and LTE base stations. See the Raditek Inc. website.

Raditek’s Rubidium Oscillators are the gold standard for precision timing products.

A Rubidium oscillator works by regulating the crystal oscillator to a rubidium hyperfine frequency of 6834682610.904 Hz and is regarded as the most precise time standard in the world.

Therefore they are used in time distribution services to regulate TV broadcasts, global positioning Satellite systems and telecommunication infrastructures.

These are also used in LTE systems that warrant ultra-high timing precision. They are also useful for UTMS, CDMA and WiMax systems, navigation and communication devices.

A rubidium oscillator is known to be highly stable in very extreme temperature ranges such as Minus 30 to plus 60 degrees which is a very remarkable functional refinement over the convention OCXOs.

Rubidium oscillators come in 2 varieties: 1) Precision Rubidium Oscillator—set to IPPS reference input for synchronization it is useful for applications such as Telecom and measuring equipment. 2) Low phase noise versions-specifically useful for applications where component dimensions matter.

Rubidium oscillators have reduced drift and are guaranteed to last 100,000 hours at normal operating temperatures. It also improves the device’s stability and helps it provide accurate time stamps.

Rubidium-based oscillators from Raditek are compact, resistant to wear-n-tear and although economical, are highly dependable on performance pointers like time transfer errors, SNR, bit rate errors and calibration intervals.

A solid-state power amplifier or SSPA as it is known in the industry is designed for use in most demanding applications. Solid-state power amplifiers use cutting-edge GaN and GaAs-based transistor technology and various other relevant architectures.

Raditek SSPA designs use Gallium Arsenide or Gallium Nitride power devices to provide high efficiency, high power levels. Our SSPAs can easily be integrated into the systems currently using TWT amplifiers.

Solid-state power amplifiers that we provide, support both X and KU band systems. SSPAs are tough devices, which are hermetically sealed to protect the device from harsh environments.

They are used in pulsed airborne, naval and ground radars application-like air traffic control, precision approach radar systems, high-tech laboratory equipment and field testing systems.

Raditek SSPAs are made to handle frequencies from 100 KHz to 20 GHZ and more and power levels from 1 kW to 50 kW and more.

Raditek also offers customized SSPAs. All the SSPAs that we provide offer high gain, super pulse fidelity and best spectral performance.

The latest RF SSPA designed by our engineers provides top performance, improved reliability and an economical alternative to expensive TWTAs. Latest SSPAs, whether off-the-shelf or customized, can be easily incorporated into any system/application.

Unlike the TWTAs, power summation concept of Raditek’s SSPA allows for gentle degradation over many years. Full details at Raditek’s website.

Waveguide rotary joint is a unit used to connect two different types of radiofrequency waveguides in a microwave communication system. For example, airport reconnaissance radars, its rotating antenna is connected to its transmitter/receiver with the help of a rotary joint.

There are a variety of rotary joints available in different size and geometrical shapes like L, U, and I which can handle frequencies up to Gigahertz.

The intensity of sound/magnetic waves tends to decrease as per the inverse square law when it expands into a 3-dimensional space. Waveguide rotary joints bounds and channel electromagnetic and or sound waves to navigate in a unidirectional dimension without loss of power or amplitude.

Waveguide rotary joint is used in a wide variety of highly important applications like military and Satcom devices, ground radars, shipborne and airborne systems. It is also used in air traffic control radars, weather radars, space platforms, and medical equipment.

Various configurations of ready-to-use waveguide rotary joints are available on the market which can be fitted into any relevant single or multiple-channel applications. Moreover, many companies offer customized versions of rotary joints too.

However, to achieve the required output performance, care should be taken to match operational characteristics such as frequency range, VSWR, insertion loss, and isolation.

Both are available from Raditek inc. full details on the Raditek website.

Receivers on the ground and in space do not require all radio/microwave frequencies that are crossing the sky at any given time.

Therefore, a band pass filter (BPF) is utilized to block/attenuate undesired frequencies and propagate only the calibrated range of a frequency band that a system/application is designed to process. As a result, it substantially reduces the latent noise levels in frequency transmission.

There are different types of band-pass filters available in the electronic market like linear/nonlinear, analog/digital.  and the most frequently used active and passive BPFs, all of these are used as per the design/circuitry needs.

Broadly, BPFs majorly fall into two categories: 1) Active bandpass filter and 2) Passive bandpass filter.

Active band pass filters use active components like transistors and Operational amplifiers and are used in very low frequency applications, on the other hand, passive band pass filters are configured using passive components like resistors, inductors, and capacitors are used in applications designed to handle very high frequencies.

Bandpass filters are an integral component of wireless and telecommunication systems, optic and acoustics systems, and applications. It is in satellite communication technology, atmospheric science and meteorological data mining.

It is also an indispensable component in Sonar, Seismology, EEGs, Electrocardiograms, lasers, LIDARS, and Audio Signal Processing applications, and devices.

All are available from Raditek Inc. full details on the Raditek website.