VNA Bridge and Support Circuits
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This page last updated
09/01/2024
Links to some excellent little known programs that I used in making the files below.
A great FREE solution to Micro$oft Office is WPS Office [Formaly called KingSoft] which is a cross platform program for Windows, iOS [iPad , iPod & iPhone], Android and Linux. Reads & writes Office 97 to 2010 formats, and outputs in all plus PDF. http://www.wps.com/
Graphisme et utilitaires - PhotoFiltre ver 6.53 [Photoshop Clone]
[in Downloads - which is located in top left Left column] http://photofiltre.free.fr/frames_en.htm
Extract to anywhere and run. Nice program and features. Simple editing & easy to useSchindler & Shill Gmbh - GerberLogix V29 Gerber viewer - great program
http://www.easylogix.de/products_detail.php?prog_id=1Schematics [sch] are in Express PCB format
Gerbers are optimized for OSH Park Fab [3 protos pp $5 / sq-in]
Note: Most of the original information here was done by
Sam Wetterlin - see link below for much more information.
New Information
9/1/2024
https://web.archive.org/web/20181206052548/http://www.wetterlin.org/sam/
Revised & New Information
Calibration Source for VNA, PHSNA, Scopes or Spectrum Analyzers
K9IVB_Version_Calibration_Source.pdf
Cal Source rev2_06202014.zip
[Gerbers]
K9IVB
Bauln Bridges5_Layout.gif for
BalunBridges6.zip [Express PCB file -
right
click to save the link !]
Note:
Includes a breakout board for Hermes and several in line pads.
The only
changes
in v6 from v5 are the corrections to the Dual TC1-1-13 layout
Revised 3 Bauln Bridge layout from above that accounts for Solder Mask and
top Silkscreen.
3BaulnBridge_v2_6102014.pdf
Schematic: 3-Bead
Bauln Bridge_V2.sch
BOM spreadsheet: 3BaulnBridge_v2_BOM_06102014.xls
Gerbers:
TC1_Bridge_06092014.zip
[Board is ~1.34
sq-in so 3 for less than $7.00 at OSH Park]
Series Fixture for VE3NEA Ham VNA1.1
SeriesFixture_06102014.pdf
Gerbers: SeriesFix_06092014.zip
NEW 9/1/2024 Gerbers:
Series_Fixture_v2_09012024.zip
Change
in v2 only to accommodate smaller SMA jack
Mouser #: 223-CON-SMA-EDGE-S
1 @ $2.52
or Amazon BN-660022
See Sam Wetterlin's webpage for more information on series and shunt
fixtures
VNA_Guide.pdf page 5
Impedance Measurement with the MSA Using the S21/Shunt Method
K3IT Revised Gerbers for correction to Dual TC1-1-13
Dual-TC1_Rev_
06092014.zip
Older Revised info moved from Hermes page
VNA Bridge Parts Lists.xls Updated March 29, 2013
Sam Wetterlin Electronics
Links to Schematics and pcb files. Note this link is dead !
Please use
the new Mirror link
https://forum.ptdreamer.com/sam/ [5/14/2019]
This is also dead !
New 9/1/2024
https://web.archive.org/web/20181206052548/http://www.wetterlin.org/sam/
K9IVB
Bauln Bridges5_Layout.gif for
BalunBridges5.zip [Express PCB file -
right
click to save the link !]
Note:
Includes a breakout board for Hermes and several in line pads.
Bridge_DualTC1-1-13_Alt_Ckt.gif
Schematic showing revised circuit design.
New 03/06/2014
K3IT Revised Gerber files
VNABridgeRev3.zip
K3IT Link to OSH Park Project
http://oshpark.com/shared_projects/kHH5LohL
Mouser Parts List Link:
https://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=048cbe5d6b
