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RF/Microwave Solid State Switches

From Skyworks Solutions, Inc.

Solid state switches are ubiquitous
in modern RF/microwave systems.
They are utilized to control signal
flows, select signal sources and for many
other applications. These switches are
implemented either with positive-intrinsicnegative
(PIN) diodes or with field effect
transistors (FETs) such as pseudomorphic
high electron mobility transistors
(pHEMTs), each of which offers relative
advantages and disadvantages. Part 1 of
this article includes an overview of RF/
microwave switches, theory of operation
for PIN diodes and some representative
PIN diode switch circuits. In Part 2 we
will discuss more PIN diode switch configurations,
the theory of operation for
FETs, some representative RF/microwave
FET switch topologies, the relative advantages
of PIN and FET switches and some
criteria by which one of these technologies
may be selected over the other for switch
applications.

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Product Announcements
Pasternack Enterprises, Inc. - Pasternack Introduces High Frequency RF Switches
High Frequency PIN Diode Switches Up to 40 GHz New from Pasternack... (read more)
Linear Integrated Systems, Inc. - High Speed (2ns), SMT, Quad, DMOS FET Switch
SD5400CY & SD5401CY : N-channel Enhancement Mode, Monolithic Quad, Surface Mount, Lateral DMOS Switch. Ideal for High Speed (2nS), Low Capacitance (0.5pf) Analog Switching Applications seeking... (read more)
Linear Integrated Systems, Inc. - SD5400CY
SD5400CY & SD5401CY : N-channel Enhancement Mode, Monolithic Quad, Surface Mount, Lateral DMOS Switch. Ideal for High Speed (2nS), Low Capacitance (0.5pf) Analog Switching Applications seeking... (read more)
Linear Integrated Systems, Inc. - High Speed (2ns), Single, DMOS FET Switch
SST210/SD210DE, SST211/SD211DE, SST213/SD213/DE, SST214/SD214DE, SST215/SD215DE : N-channel Enhancement Mode, Single, Lateral DMOS Switch. Ideal for High Speed (2nS), Low Capacitance (0.5pf) Analog... (read more)
PHD, Inc. - Solid state inductive sensing technology
High reliability, ease of mounting, and suitable for plant environments that are conductive to creating difficulties for electromechanical and other types of switches. (read more)
 
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