Tapped microwave acoustic delay line

Claim 1

A MICROWAVE ACOUSTIC DELAY APPARATUS COMPRISING AN INPUT WAVEGUIDE TRANSMISSION LINE AND AN OUTPUT WAVEGUIDE TRANSMISSION LINE, SAID TRANSMISSION LINES ARRANGED PARALLEL TO EACH OTHER, A DELAY MEDIA INSERTED BETWEEN ADJACENT WALLS OF SAID TRANSMISSION LINES, EACH OF SAID TRANSMISSION LINES HAVING A PLURALITY OF PROBES LOCATED SO AS TO CONCENTRATE THE ELECTRIC FIELD COMPONENT OF AN ELECTROMAGNETIC SIGNAL ON THE FACE OF SAID DELAY MEDIA, AND A SHORT CIRCUIT IN EACH OF SAID TRANSMISSION LINES SUCH THAT THE VOLTAGE IS A MINIMUM AT THE SHORTED END AND HAVING A MULTIPLICITY OF MAXIMUM VOLTAGE POINTS ALONG THE TRANSMISSION LINE AT ONE-QUARTER WAVELENGTH FROM SAID SHORTED END AND AT SUCCESSIVE HALF WAVE LENGTH MULTIPLES THEREOF ALONG THE DIRECTION OF PROPAGATION OF SAID ELECTROMAGNETIC SIGNAL, SAID DELAY MEDIA BEING OF A SUFFICIENT LENGTH TO CONTAIN MORE THAN ONE OF SAID MAXIMUM VOLTAGE POINTS TO PROVIDE MULTIPLE DELAY PATHS OF EQUAL LENGTH TO INCREASE THE EFFECTIVE SIGNAL POWER TRANSFERRED ACROSS OR THROUGH SAID DELAY DEVICE.