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Links to files useful to the discussion on the Antenna Discussion List of antenneX :

Extremely Wideband Antennas ( EWB)- Developed with Ed Shortridge

bullet110-455Mhz/EWB1SWR.gif
bullet110-455Mhz/EWB1RL.gif
bulletWB1.JPG

Pictures of what happens in the " World of Broadcasting " :

bulletLighteningSamples1.doc
bulletRadio Maria World (.ppt - 10 Mb)

Baluns - Toroids - SWR Bridges - Common Mode Currents :

bulletSWR Bridges-Baluns.jpg
bulletSWR Bridge  schematic .gif
bullet S11Balun1:1 Loaded 50 Ohm .gif
bullet S11Balun1:1 Loaded 50 Ohm Unbalanced at one pin .gif
bullet S11Balun1:1 Open.gif
bullet UHF Bead1.gif
bulletPattern Measurements with and without a Balun  .pdf
bulletGuanella Wide Band Balun 4:1 and 1:1 practical results .xls

Q - Stubs  :

bullet 2.35m RG58 Short HF.gif
bullet 2.35mRg58 Open HF.gif
bullet 9.4mRg58 HF .gif
bullet RG58StubQ2.xls

Antenna tests and measurements with Ham tools :

bulletCiao Radio System 
bulletAttenuator .JPG
bulletAttenuator 1.JPG
bulletAttenuatorTest 100 Mhz .gif
bulletDLA.jpg

Professional scaled Measurements  :

bullet4.5 : 1 Scaled measurements from Shively Labs.pdf
bulletSerious and witty : http://www.sm.luth.se/~urban/master/

Field Measurements : 

bulletNear Field Probes : Kanda.pdf
bulletCalibration of Directional Antennas : Trazska1.doc
bulletLow Frequency E - Field Standard : Trazska2.doc

Coaxial cables  :

bulletWhy coax have 50 or 75 Ohms Impedance ? (Taken from RFS catalogue)

Ionic Liquid Antenna :

bulletPicture of a GP- ILA at 145 Mhz 
bulletILA Salinity Probems.JPG
bulletWhy not use the Human Body ? : ONR_20010507.pdf
bulletVariable delay line with Kerosene : Croce del sud 1.gif

The Use of Trees as Low Efficiency Radiators :

bulletIEEE Article : Trees performing as Radio Antennas: 01141017.pdf
bulletTreeSmithChart.gif
bulletTreeReturn Loss.gif
bulletTreeSWR.gif
bulletTree1.jpg
bulletTree2.jpg
bulletTreeCouplingSetup.GIF
bulletGain measurements comparing a 11m tree with an elevated GP at 13770 Mhz-Ionosferic-GP Upper Trace 
bulletGain measurements comparing a 11m tree with a WL/4 Monopole at 13780 Mhz - Ionosferic - Tree Upper trace
bulletGain measurements comparing a 11m tree with a WL/4 Monopole at 14500 Mhz- Line Of Sight - Tree Upper trace

Propagation in Lossy Medium  :

bulletRF Propagation Basics.pdf
bulletTrees Attenuation .pdf
bulletSeawater Conductivity .pdf

Why a Capacitor is not a good  Antenna :

bulletRadiation from from Capacitors : 0305062.pdf

Formula of the Capacitance of a Short Dipole  :

bulletDipoleCapacitance.GIF

Loops Efficiency   :

bullet1mSquaredLoop-Cu22mm.JPG
bullet1mSquaredLoop Inside the Wheeler's Cap.JPG
bullet1mSquaredLoopEfficiencyMeasurements.bmp

Tetrahedral Antenna from Alan Boswell  :

bulletTETRAHEDRAL ANTENNA.doc(2.6Mb)

Antenna books  or Courses  :

bulletVery Good Antenna Courses on Line : http://www.ece.mcmaster.ca/faculty/georgieva/
bulletRussian Antenna Book 532 pages : ayzenberg.djvu ( 6Mb)
bulletRussian HAM Books Link : http://www.translate.ru/url/tran_url.asp?lang=ru&direction=re&template=General&cp1=CP1251&cp2=NO&autotranslate=on&transliterate=on&url=http%3A%2F%2Fwww.cqham.ru%2Flib.htm
bulletPlug in for reading the files .djvu http://www.lizardtech.com/download/dl_download.php?detail=doc_djvu_plugin&platform=win

Maxwell - Near -Far Field   :

bulletAmplitude components of the E-Field - From "Antennas " Kraus-Marhefka: Maxwell.gif
bulletDipole Field Components from Vadim Devidov : Elem_dip0.pdf
bulletGroundwaves.htm
bulletFrom "Antennas"  Kraus - Marhefka : BasicAntennas.gif
bulletEM Far Field in space :EM.gif
bullet BASICS ON MAXWELL LAWS
bulletVery Basic : http://www.ieee-virtual-museum.org/search/index.php - Search : Maxwell

Maxwell - Near -Far Field

bulletMaxwell1.pdf (6.0 Mb)
bulletMaxwell2.pdf (3.6 Mb)
bulletMaxwell3.pdf (3.6 Mb)
bulletMaxwell4.pdf (0.5 Mb)
bulletMaxwell5.pdf (7.2 Mb)

Ground Planes - Radials 

bulletRadials with WL/4 
bulletRadials with WL/2
bulletDifferent Vertical patterns for different length

Easy Cosmology  :

bulletFrom MacroCosm to MicroCosm - Powers of 10 : index.html
bulletBig Bang Riddles - No math : cup.pdf
bulletBig Bang Riddles - with some math : rev.pdf

Mounting Antennas  :

bulletFasten Sit Bealts before Downloading ! : antennisti.jpg

http://www.antennex.com

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X-field discussion List - Yahoo : 

PVS : CFA-EH-DLA 

IEEE Article on tests on Short Medium Frequency Antennas and CFA - V.Trainotti .pdf

Testing the EH Antenna fron antenneX public archive : eh1.pdf

EH ionosferic gain comparison at 14 Mhz with a Ground Plane : EH1.GIF

EH gain summary of measurements at 50 Mhz : EHgain.xls

http://home.earthlink.net/~calvinf15/_technical/EH_antenna_test_report.pdf

http://home.earthlink.net/~calvinf15/_technical/EH_antenna_test_report_2.pdf

http://www.eh-antenna.fromru.com/meas_0.html

http://www.eh-antenna.fromru.com

How H Field varies rotating a coil :Hfield2.jpg

How H Field varies rotating a coil :Hfield1.jpg

Hately EMDR instructions

Lloyd Butler X-3 antenna test picture with MFJ suspended on air 

http://groups.yahoo.com/group/x-field/

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