Nonreciprocal rectangular wave guide device

Claim 1

A DEVICE FOR MODIFYING ELECTROMAGNETIC WAVE ENERGY PROPAGATION COMPRISING A SECTION OF BOUNDED WAVE GUIDE HAVING A BOUNDARY OF RECTANGULAR TRANSVERSE CROSS-SECTION AND CONTINUOUS CONDUCTIVITY, MEANS FOR APPLYING ELECTROMAGNETIC WAVE ENERGY HAVING A SOLELY TRANSVERSE ELECTRIC FIELD PATTERN WITH A REGION OF MAXIMUM ELECTRIC INTENSITY TO SAID SECTION, A LONGITUDINALLY EXTENDING VANE ELEMENT OF GYROMAGNETIC MATERIAL LOCATED WITHIN SAID SECTION IN THE PATH OF AND IN COUPLING RELATIONSHIP WITH SAID ENERGY, AND MEANS FOR APPLYING A STEADY MAGNETIC FIELD TO SAID GYROMAGNETIC ELEMENT IN A DIRECTION PARALLEL TO THE ELECTRIC FIELD LINES OF SAID TRANSVERSE ELECTRIC FIELD PATTERN, SAID ELEMENT BEING DISPOSED SUBSTANTIALLY ASYMMETRICALLY IN THE TRANSVERSE CROSS-SECTION OF SAID WAVE GUIDE SECTION AND CENTERED IN A REGION OF ELECTRIC INTENSITY SUBSTANTIALLY LESS THAN SAID MAXIMUM BY AN AMOUNT SUFFICIENT TO SUBSTANTIALLY ENHANCE THE MODIFYING EFFECT OF SAID MATERIAL UPON THE PROPAGATION OF SAID ENERGY OVER THAT FOR SAID ELEMENT CENTERED IN SAID REGION OF MAXIMUM ELECTRIC INTENSITY.