- Buyers Guide
Dow-Key Microwave Corp. presents its 511H-Series high power T-switch which has been qualified and supplied to various domestic and international space programs for both military and commercial use. The 511H-Series design is offered with 1.5 kW peak power at UHF, 300 W peak power both at L-Band and S-Band, and 200 W peak power at C-Band.Read More
The Reliant SwitchTM is a 1×6 bidirectional coaxial switch with an operating frequency from DC to 26.5 GHz, which covers the typical 6 GHz test range and beyond for high-speed testing. This switch is designed with a high isolation of 100 dB (up to 4 GHz) to maintain RF consistency between port-to-port testing and can sustain a guaranteed insertion loss repeatability of 0.03 dB across the entire frequency band.Read More
This series of low PIM switches is now available with N-type connectors (in addition to SMA connectors). SPDT, DPDT and SP6T with SMA or N-type connectors are available, which are specifically designed and guaranteed to meet 3rd order IM requirements below -160 dBc; at 1870 MHz and at approximately +43 dBm with carrier frequencies 1930 MHz and 1990 MHz.Read More
Dow-Key® Microwave Corp. will be displaying its Ka Brand switches and next generation matrices at the 2014 International Microwave Symposium Exhibition (IMS 2014) in booth 1405 on June 3-5 at the Tampa Convention Center in Tampa, FL. The IMS 2014 Expo will be the center of Microwave Week, June 1-6.Read More
Dow-Key has vast experience in designing and manufacturing matrix solutions with excellent performance. We are experts in custom designs - from small 1RU design to full integrated 19" rack solutions - and we offer many different types of COTS (commercial off-the-shelf) switch solutions starting with 1U up to 4U design.Download
Dow-Key has an extensive coaxial and waveguide portfolio with switches operating up to 40 GHz for coaxial switches and up to 70 GHz for waveguide switches, along with miniature switches, programmable delay line and attenuators, and with the latest addition of Low PIM switches for PIM sensitive applications.Download
The next generation platform is engineered around a flexible and efficient modular system architecture comprised of a series of brackets, panels and electronic-boards that are universal among all Dow-Key electromechanical models. Commercial-Off- The-Shelf (COTS) solutions are not only cost effective, but can also easily be re-configured by adding RF switches to a single enclosure – from simple to complex combinations. This new platform is easily field upgradable and repairable.Download
Dow-Key has been a premier supplier of space qualified coaxial and waveguide switches since 1970. We design, fabricate and test all integrated switch blocks assemblies and individual switches in house and have had an in-flight failure free record in over 100 different space programs using over 150 different product designs. With decades of experience and knowledge, we are confident in providing high reliability solutions which can withstand the severe environments that space imposes on complex systems.Download
This tutorial will guide the user in selecting the right switch configuration for one's application by identifying critical switch parameters and characteristics. It further introduces the user to all available options offered with a coaxial switch.Download
This application note introduces an alternative way of meeting switching needs by showing how to design your own RF switch solution using CANBus switches together with a controller kit.
Whether you are designing an RF switching system or planning to purchase one, it is important to understand the fundamentals of these complex systems and the ways in which application requirements impact cost and performance. This paper will explain the requirements placed on switching systems and the tradeoffs that different choices presents.Download
This paper focuses on defining Passive Intermodulation and the concerns around PIM. It also discusses the cause of PIM in both general terms and in switches, in addition to, providing a solution for systems with low PIM requirements.
Bandpass/bandstop (BP/BS) and lowpass/highpass (LP/HP) diplexers meeting rigid Passive Intermodulation (PIM) specifications are the essential building blocks of innovative testing system architectures. By integrating these filters with Dow-Key's switch matrices, an OEM can construct a single automated test system capable of covering a variety of frequency bands. Test systems of this kind can be further expanded to accommodate injection of interfering signals, monitoring ports and other customer requirements.Download
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