[Antennas] Matching using coax

[Jim Miller]

I want to build a moxon rectangle array of 2 over 2 for 2 meters.  All 4 would be fed and all in phase.  The overall dimensions of the array are 19 inches x 85 inches giving a turning circle of about 22 inches.  This is supposed to fit in the attic and be rotatable showing a gain of over 9 dBd with a radiation angle of 5 degrees and a 3dB azimuth of almost 90 degrees.

#1 - Here is the question.  I read "somewhere" about using 50 and 75 ohm coax to transform impedances.  I think the article was for 4 verticals (in a row?) and they used only coax to MATCH (to get the 12 ohms to 50 ohms).  I didn't completely understand, have no idea where I saw it,  but would like to do this.  

#2 - Is there a better (easy) way to match this?

Thanks es 73, de Jim KG0KP