Electronic Symbols.doc Revision 20 Last modified July 6, 2011

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Electronic Symbols.doc

Revision 20


Last modified July

6,

20
11


You wouldn’t believe how many engineers download this
free
Word file each month!


This Word document contains some schematic symbols for use in Microsoft Word, PowerPoint
and Excel files for
reports and presentations. If you happen to have Agilent ADS or AutoCAD,
you may find these tools more convenient for creating schematics. If you are a microwave
cheapskate, you may have created these symbols yourself a hundred times. Using this
downloa
dable file, now you won’t have to!



Did you find some useful schematic symbol(s) missing? Drop a line to
techwriter@microwaves101.com

and we’ll see if we can add it!


The Microsoft Word Drawings are
pasted into tables to keep them “anchored” within the text.
Just double
-
click on a figure to edit it. When you are editing a fi
gure, remember that everything
started out

on a 0.
05 inch grid. You may have to turn off the grid snap to get things to align
properly.


Around the pictures (inside the Microsoft Word Drawings) are invisible boxes with clear filling.
These are used to define the outside edges of the pictures.


Microsoft software does some peculiar things if you try to scale the pictures. We reco
mmend
that if your picture is too big, you should work on decreasing the size of the elements inside the
picture rather than squeezing the entire picture down to size. Once you shrink any of the
schematic elements, all bets are off as to whether they will

look aligned when you connect them
up.


It is very simple to copy from one picture to another. You need to double
-
click the picture you
are copying from, then click and control C the element you want to copy, then exit the picture,
click into the second
picture and hit control V.


Good luck!

Microwaves101.com


Resistors, capacitors and inductors


Coax, ferrite bead


FETS and transistors

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Attenuators, circulato
rs and isolators


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Double
-
balanced mixer
s

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Diodes, DC blocks, mixer, phase shifter/attenuator

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Filters

and multiplexers


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Lumped Filters


Switches

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Branchline hybrid couplers

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Rat race coupler

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Wilkinson power splitters

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N
-
section Wilkinson, Even/odd modes

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Phase shifters


Switch configurations

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Three
-
way Wilkinsons


Resistive splitters

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L
-
Pad


Owen resistive splitter



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Gysel power splitter



Detector circuits



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Meters, power supplies and batteries



Resonant circuits

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MOSFETs and Drivers


Logic

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Receivers



Capacitor model



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Voltage and current

sources,
t
ransmission line model



MEMS switches


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Lange coupler
s. balance
d

amp






Doherty amp


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TR modules




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The FET images below cam
e from James. Thanks!!




Depletion mode MOSFET








Enhancement Mode MOSFET






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p Channel JFET n
-
channel JFET