Dow-Key Microwave, the world s largest manufacturer of electromechanical switches offers an extensive selection of multiposition switches for a variety of ATE applications ranging from SP3T to SP14T.
Characteristics include a design of 1, 2 or 5 million life cycles with standard operating frequency ranging from DC-26.5 GHz.
Standard coil voltages of 12V, 24V, and 28V are available and may also be designed to include various control options and RoHS compliance.
Ideal for use in outdoor distributed antenna systems (DAS) and other mobile communications systems infrastructure, our new family of 4.3-10 connectors and adapters boast a combination of excellent low-PIM performance, weather resistance and corrosion resistance.
These new 4.3-10 connectors and 4.3-10 adapters (also called 4.3-10 Mini DIN) are made with silver-plated center contacts and a corrosion-resistant tri-metal finish on the body and outer conductors. They have an IEC 61169-54 compliant interface and boast 30 percent reduction in footprint when compared to 7/16 DIN connectors and adapters.
Features include:
• Max Operating Frequency of 6 GHz
• Low PIM rating of -166 dBc
• Excellent VSWR as low as 1.08:1
• IP67 rated (Mated)
• Low Coupling Torque
Our new 4.3-10 connectors and adapters are in-stock and available to ship immediately. For additional information and specifications, please contact Vermont Rep.
Limiting amplifiers are different than other amplifiers due to their ability to maintain a constant output as they are driven into saturation/compression.
For example, the PE15A6008 amplifier specifications indicate a +/-1dB flatness at Psat (saturation).
The most important performance requirement of a limiting amplifier is to minimize output power variations as well as provide a constant output over a wide input dynamic range. This benefits in protecting subsequent components from input overdrive.
Limiting amplifiers are great for maintaining constant envelopes, but will not provide a linear output. Because the output of limiting amplifiers will be into saturation/compression, some distortion will occur.
Broadband, dynamic range limiting amplifiers are critical components in oscillator driver networks and in electronic warfare (EW) systems where stable compressed output power is required over a wide input power range.
We have recently expanded our offering of RF Limiting Amplifiers that are in-stock and available to ship today!
Free-Running Reference Oscillators offer highly stable and accurate output frequency response with low phase noise, making them ideal components for use in phase locked loop, function generator, radar, navigation, surveillance and test and measurement applications.
We are pleased to offer you 6 new models of free-running reference oscillators with output frequencies of 10 MHz, 50 MHz and 100 MHz.
Features Include:
• Desirable Fixed Tuned Output Frequencies: 10 MHz, 50 MHz, or 100 MHz
• Exceptional Phase Noise Performance @ 10 KHz offset: -150 dBc/Hz Typical
• High Stability levels of +/- 5 ppm and Aging rated at < 1 ppm
• Output Power Level: +7 dBM Typical
• Low Spurious Output: -70 dBc Typical
• Operational Temperature Range: -30°C to +70°C
• Rugged SMT and Coaxial Package Designs meet MIL-STD-202 Test Condition
Our new free-running reference oscillators are in-stock and available to ship today. For detailed information on these products, please contact Vermont Rep.
Ventura, CA, May 4, 2017 – Dow-Key® Microwave, part of the Microwave Products Group (MPG) – a subsidiary of Dover Corporation, to exhibit solutions up to 40 GHz at AUVSI Xponential: Microwave Products Group Booth 420.
On May 8, 2017, the largest global community of leaders in drones, intelligent robotics and unmanned systems will come together to shape the future of our industry. AUVSI Xponential 2017 will equip you with insights, solutions and opportunities for the industry’s newest developments and challenges.
This year, AUVSI Xponential will be held in Dallas, Texas, on May 8-11 at the Kay Bailey Hutchison Convention Center with Dow-Key® Microwave – the oldest continuously operating switch manufacturer in the United States, showcasing a broad array of high quality and reliable 40 GHz electromechanical switches, in addition to, switch solutions such as the Reliant Switch™ and Miniature MS-Series Matrix used for Automated Test applications.
Dow-Key® Microwave is committed to providing a wide selection of coaxial switch options operating up to 40 GHz, which can be configured for a variety of ATE and military applications.
Our 40 GHz switching solutions are legacy products proven over and over again, which supports high speed testing and application that operates from 28 GHz and up to 40 GHz such as millimeter wave drones and devices designed for the 5G network, said Sara Nazemzadeh, Dow-Key® Microwave s Matrix Product Sales Manager. This product line is also offered both with terminated or non-terminated RF ports, catering to applications that may need the transition line to be terminated.
For applications, on the lower end of the 5G spectrum, we are excited to showcase our newest generation of switch matrix product line, the Miniature MS-series (MMS). It is an ideal solution for routing RF signals in test and measurement applications up to 26.5 GHz or to use as a VNA port extender. The MMS-series comes equipped with the user’s choice of high performance Reliant Switches™ in a compact enclosure, taking minimal real estate space in a test lab” said Sara Nazemzadeh. Furthermore, the Reliant Switch™ design features a guaranteed insertion loss repeatability of 0.03 dB across the entire frequency band of DC to 26.5 GHz, and it comes with an extended life of a minimum of 10 Million Life Cycles for SPDT s and 5 Million Life Cycles for SP6T s, which is perfect for high density and high repeatability RF test applications.
For more information please contact Vermont Rep.
The flatness or frequency sensitivity of an RF coupler is the measure of how the coupling value can vary over a given frequency range. For a quarter-wavelength coupler operating over an octave band, typical coupling flatness is within ± 0.75 dB of the nominal value.
All things being equal, stronger coupling factors (3, 6 and 10 dB) show greater flatness than weaker coupling factors (20 through 50 dB). When operating over frequency bands greater than an octave, the flatness tolerance may need to be lessened due to the inherent characteristics of coupling roll-off.
Pasternack offers a wide array of RF Couplers that are in-stock for same day shipping.
Maxtrack develops LoRa-based asset tracking solution to recover stolen property
Continue readingPasternack now offers seven new I/Q Mixer models boasting high levels of image rejection and sideband suppression. These new mixers operate with RF and LO frequency bands ranging from 4 GHz to 38 GHz with In-Phase and Quadrature IF bandwidths that range from DC to 4.5 GHz.
A key benefit of these IQ mixers is that the high levels of image rejection and sideband suppression can reduce overall system cost and complexity by removing the need for pre-selection filtering. Typical applications include point-to-point and point-to-multipoint radio, VSAT, military radar, electronic warfare, satellite communications, test equipment, and sensors.
IQ Mixer Features Include:
• RF/LO Broadband Frequency Coverage from 4 GHz to 38 GHz
• GaAs MESFET MMIC Technology
• IRM Down-converter or Single Sideband Up-converter Capability
• High Image Rejection ranges from 15 to 35 dB
• LO to RF Isolation up to 45 dB typical
• Input IP3 Linearity as high as 35 dBm
• Hermetically Sealed Drop-In Packages Support Field Replaceable Connectors
• Designs are Mil-Spec Compliant
The new IQ mixers are in-stock and available to ship today. For additional product details, please contact Vermont Rep.
As LoRa wireless transceivers enable the IoT market, new opportunities emerge for Semtech circuit protection solutions
Continue readingAttenuators are fundamental components of RF and Microwave circuits and systems. Often found in virtually every RF application, attenuators play a vital role in receivers, transmitters, and test and measurement systems.
Attenuators simply decrease the wanted or unwanted signal strength along a signal path. They can be used to decrease the output signal of a device-under-test before a sensitive test and measurement receiver, to ensure a more conformal impedance match, or to ensure precise control of the signal amplitude at the output of a transmitter. The attenuation level of a device—the amount of signal power/voltage lost through the device—is commonly measured in either decibels (dB) or as a voltage ratio.
The most common attenuators are broadband attenuators. But, some attenuator types and technologies may have frequency dependant performance and limitations. Though terminations also reduce the signal strength at the load of a system, attenuators differ from terminations as they are in-line to the signal path.
Attenuators are based on passive resistors, absorptive material/techniques, PIN diodes, or field-effect transistor (FET) technologies. Additionally, attenuators can be developed from coaxial transmission line, stripline, surface mount, or even waveguide interconnect technologies. The performance and physical properties of these different technologies vary widely. The quality of construction and costs also contribute to the range in performance, thermal, and physical properties.
