Low PIM Switches for Applications Sensitive to Non-Linear Responses

Passive Intermodulation (PIM) is referred to distorted signals that occur in passive components such as coaxial switches, when two or more signals contribute to a non-linear response. Dow-Key Microwave recognizes that PIM becomes a concern in applications where two or more transmitted signals share a common antenna or whenever the transmitter signal is too high or the receiver is sensitive to high intermodulation.

As Low PIM requirements on passive devices are increasingly getting more significant in test and communication industries, Dow-Key Microwave offers switches that reduce this unwanted signal. To avoid high intermodulation levels, most Dow-Key coaxial switches from SPDT up to SP12T, are available with the “W” option to indicate a Low PIM version. These switches are specifically designed and guaranteed to meet 3rd order PIM requirements below -160 dBc at 1870 MHz and at approximately 43 dBm (20 W), with carrier frequency 1 at 1930 MHz and carries frequency 2 at 1990 MHz.

Low PIM Switches


To learn more about Low PIM switches, contact Dow-Key or download the below product sections:

SPDT Coaxial Switch
Transfer (DPDT) Coaxial Switch
Multi-Position (SP3T-SP12T) Coaxial Switch

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Dow-Key Microwave Corporation, the world's largest manufacturer of electromechanical RF Switches and Switching Systems, is part of the Microwave Products Group (MPG), which is a subsidiary of Dover Corporation. We specialize in Coaxial Switches, Waveguide Switches, Space Qualified Switches, Electromechanical Switch Matrices, Solid State Switch Matrices, Fiber Optic Switch Matrices, Programmable Delay Lines and much more. Specializing in RF Matrix, Switch Matrix, and RF Switches.

As a leader in RF technology, Dow-Key offers high performance waveguide switches operating up to 70 GHz, coaxial switches operating up to 40 GHz, Hi-Rel switches such as SPDT, transfer switch, T-Switch, various waveguide switches and switching blocks, and switching systems such as SATCOM modules, RF matrices with individual switches, non-blocking crossbar, fan-in and fan-out modules, hybrid switching solution and much more (electromechanical, solid state and fiber optics), in addition to, custom switching designs and reliable solutions, as it is required in today's fast paced communication industry. Our products are used in a wide range of different markets, from commercial, military and to space, with applications in ATE, avionics, ground based, satellite communications, broadcasting, Hi-Rel, and many more. We are specialized in RF technology and custom switching needs. Dow-Key Microwave is AS9100 / ISO-9001:2008 certified and is committed to provide unparalleled customer service, competitive pricing and on-time delivery. Founded in 1945, Dow-Key is the oldest continuously operational RF Relay manufacturer in the United States.

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