Abstract: A flexible circuit conductor run for connecting circuit elements comprises a thin sheet which includes a plurality of pairs of generally parallel spaced-apart thin conductors.Each conductor in each pair of conductors includes alternating lengths of crossing portions and extending portions. Each length of conductor extending portions includes generally sidewardly-projecting tine portions.Such flexible circuit conductor run enables the characteristic impedance thereof at high power and operating frequencies to be substantially matched with the characteristic impedance of the circuit elements at such power and operating frequencies, to enable effective signal transfer and reduced signal loss between the circuit elements through the flexible circuit conductor run.