SU1580465A1 - Mode-selective directional coupler - Google Patents

Abstract

The invention relates to radio engineering, namely to power distribution devices. The purpose of the invention is to reduce the size and power loss. The modoselective directional coupler contains a multimode circular waveguide (µV) and four secondary waveguides (VF) 4 connected to it through holes in their common walls, placed parallel to the MCF at 90 ° intervals around its circumference. The inputs of the first waveguide adder (BC) 5 are connected to two adjacent BB 4, the inputs of the second BC 6 are connected to two other neighboring BB 4, and the outputs BB 5 and 6 are connected to the inputs of the third BC 7. The inputs and outputs of BC 5-7 are equal to distance from the axis MKV. Connecting the first BC 5 and the second BC 6 to neighboring BB 4 allows eliminating lengthy segments of connecting waveguides and bends, which is capable of reducing the size of the device and reducing power loss. 2 Il.

Description

FIG. 2

3

The invention relates to radio engineering, in particular to power distribution devices between transmission lines.

The purpose of the invention is to reduce the size and power loss.

 FIG. 1 depicts a modoselective directional branch; in fig. 2 - connection diagram of adders

The modoselective directional tap contains a multimode round waveguide 1 and four secondary waveguides 4 connected to it through holes 2 in common walls 3, placed parallel to the multimode round waveguide 1 with an interval

90 but its circumference, the first 5 and a tweeter containing a multimode circular waveguide and connected to it through holes in the common walls of

swarm 6 waveguide adders, inputs

which are connected to the secondary wave-20 gaps of the secondary waveguide, placed parallel to the multimode round leads 4, and the outputs are connected to the inputs of the third waveguide adder 7. The inputs of the first waveguide adder 5 are connected to two adjacent secondary waveguides 4, and the inputs of the second 25 waveguide adder 6 to two other adjacent secondary waveguides 4. The inputs and outputs of waveguide adders 5-7 are located at equal distances from the axis of the multimode round waveguide 1.

The modoselective directional branch works as follows.

The signals propagating through the multimode circular waveguide 1 are carried by Hn waves. m HC (2ti-f) m N m and OTHERS, which branch off via holes 2

a waveguide with an interval of 90 but its circumference, the first and second waveguide adders, whose inputs are connected to secondary waveguides, and the outputs are connected to the inputs of the third waveguide adder, characterized in that, with a circuit for reducing dimensions and power losses, the inputs of the first waveguide the adders are connected to two adjacent secondary waveguides, and the inputs of the second waveguide adder are connected to two other adjacent secondary waveguides, while the inputs and outputs of the waveguide adders are located at an equal distance from the multimode axis th circular waveguide.

secondary waveguides 4. Signals proportional to the level of the operating wave H0, are summed in adders 5-7 in-phase, and other types of waves are antiphase, which ensures the selectivity of the device by wave type. Connecting the first 5 and second 6 waveguide adders to the adjacent secondary waveguides 4 eliminates lengthy sections of connecting waveguides and bends, which helps to reduce the size of the device and reduce power loss.

Claims (1)

The invention has a modoselective directional coupler containing a multimode circular waveguide and associated with it through holes in the common walls of a waveguide with an interval of 90 but its circumference, the first and second waveguide adders, whose inputs are connected to secondary waveguides, and the outputs are connected to the inputs of the third waveguide adder, characterized in that, with a circuit for reducing the size and power loss, the inputs of the first waveguide adder connected to two adjacent secondary waveguides, and the inputs of the second waveguide adder to two other adjacent secondary waveguides, while the inputs and outputs of the waveguide adders are located at an equal distance from the multimode axis th round waveguide. ID Cv Editor O. Golovach Compiled by A. Malovichko Tehred M. Didyk Proofreader S. Shekmar Order 2018 Circulation 438 VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nabD1, 4 / b Production and Publishing Combine Patent, Uzhgorod, st. Gagarin, 101 Subscription