Abstract: A radio frequency power divider/combiner having a pair of conductive plates between which the dominant E-type mode is produced by symmetrical excitation at a central point preferably by means of a coaxial line having its outer conductor attached to the first of these plates, and its inner (center) conductor passing freely therethrough and attaching to the second of these parallel plates in an impedance matching flareout. A plurality of uniformly distributed collectors each in the form of a loop feeding the coaxial branch port provides for low loss. The entire assembly is in the form of a thick disc with radially extended branch ports about its perimeter and a common excitation feed extending normally from the surface of the first plate. Resistors are provided between adjacent portions of the end-on loops for the suppression of circumferential current components corresponding to undesired modes.

Abstract: A device for measuring the power in a microwave transmission and for providing a measuring port at the output of a microwave signal generator or transmitter. First and second quarter wavelength transmission line sections, coupled in series with one another and having characteristic impedances Z.sub.2 and Z.sub.1 respectively, where Z.sub.2 >>Z.sub.1, are coupled at the first section to a predetermined point on a transmission line to be monitored. A port at the free end of the second section allows for the connection of two independent measuring circuits to the transmission line.

Abstract: The collectors or the bases of three RF power transistors, each mounted on a separate substrate, are connected in parallel by means of transmission line segments connected so that the current flowing in the center transistor splits evenly and joins the current from the end transistors at an initial combining point, which points are then connected to a final combining point to provide the shortest transmission lines to the initial and final combining points.

Abstract: An apparatus for combining outputs of serially connected high frequency power sources includes a number of input ports, an output port, and a power combination structure. The power combination structure includes two outer conductive layers which extend from the input ports to the output port and one or more intermediate conductive layers which extend from the input ports to a power combination region. High frequency power from the input ports propagates to the power combination region and therein combines vectorially. The sum of the individual input power levels then propagates to the output port. The power combiner can be reversed and used as a power divider operating into serially connected loads. A preferred embodiment, including two copper clad dielectric members and an aluminum base, operates at about 915 MHz. The power combiner can be constructed in a coaxial configuration.

Abstract: A power splitter is disclosed for dividing radio frequency (R.F.) power applied to an input terminal equally among n number output terminals, where n.gtoreq.2 and is an integer, irrespective of the impedances at the input or at the output terminals. The power splitter utilizes n number .lambda./4 inner conductors disposed in a .lambda./4 housing, which provides a common electromagnetic shield. The input terminal is formed by connecting together the first end of each inner conductor, the first ends being present at a first opening in the housing. The second ends of the inner conductors, which are all present at a second opening in the housing, are connected together outside the housing by (n-1) number .lambda. lines so as to form an electrical wheel. Each end at the second opening is an output terminal of the power splitter. A power combiner is disclosed for summing at an output terminal R.F. power applied to n number input terminals, where n.gtoreq.

Abstract: The power divider/combiner includes an impedance transformer arrangement coaxial of and within an outer conductor, an input/output coaxial transmission line coupled to the transformer arrangement and the outer conductor and first N-discrete, spaced transmission lines supported by a dielectric cylinder disposed coaxial of and within the outer conductor, each of the first transmission lines being coupled to the transformer means, where N is an integer greater than one. Second N-discrete, spaced transmission lines are disposed coaxial of and transverse to the outer conductor remote from the transformer arrangement, each of the second transmission lines being coupled to a different one of the first transmission lines and terminating in a common metallic disc coaxial of and adjacent the axis of the outer conductor.