Three-Way Power Divider With Ring Waveguide Layout

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Solution Overview

Problem

Conventional three-way power dividers require terminators and result in long wiring distances for signal lines when mounted in multibeam forming circuits, as their input and output ports are positioned on opposite sides, complicating signal connections between multiple power dividers.

Innovation Solution

A three-way power divider design featuring a rectangular waveguide with L-shaped and flat waveguides arranged in a ring shape, allowing signal power to be divided without terminators and reducing signal line wiring distances by optimizing waveguide connections and branching configurations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If one input port and three output ports of a conventional three-way power divider are installed on opposite sides, then the power division function is achieved, but the wiring distance of signal lines becomes long when mounted in a multibeam forming circuit

Engineering Contradiction:
Improvepower division functionVSAvoidwiring distance
Core Design Contradiction:
Ease of operationVSLength of stationary object

Solution Approach 1:

The patent applies asymmetry by changing the conventional symmetric opposite-side port arrangement to an asymmetric configuration where the input port and output ports are positioned on adjacent sides of the waveguide body. Specifically, the input port is positioned on one side surface while the three output ports are positioned on an adjacent side surface, creating an asymmetric layout that reduces the distance between ports and minimizes wiring length in multibeam forming circuits.

Inventive Principle:
Principle #4Asymmetry

Solution Approach 2:

The patent utilizes dimensional optimization by repositioning ports from a one-dimensional opposite-side arrangement to a multi-dimensional adjacent-side configuration on the waveguide surface. This spatial reorganization in multiple dimensions allows the signal lines to connect more directly between power dividers, reducing the overall wiring distance when multiple power dividers are arrayed in the multibeam forming circuit.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Ease of operation

If conventional three-way power dividers are used in multibeam forming circuits, then power division is achieved, but terminators must be connected which increases device complexity

Engineering Contradiction:
Improvepower division capabilityVSAvoidterminator connections
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent extracts and eliminates the terminator component from the conventional three-way power divider system. By redesigning the waveguide structure with adjacent-side port positioning, the invention achieves proper power division and signal distribution without requiring external terminators, thereby simplifying the overall device structure and reducing complexity in multibeam forming circuits.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The redesigned three-way power divider achieves multi-functionality by combining the power division function with an integrated port arrangement that eliminates the need for separate terminator connections. The adjacent-side configuration inherently provides proper signal distribution to all three output ports while maintaining impedance matching, making the device universally applicable without additional terminator components.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The design effectively divides signal power into three without the need for terminators and reduces signal line wiring distances, enhancing the compactness and efficiency of multibeam forming circuits.

Implementation Method 1

a rectangular waveguide having a waveguide wall, the waveguide wall being formed by a first L-shaped waveguide, a first flat waveguide, a second L-shaped waveguide, a third L-shaped waveguide, a second flat waveguide, and a fourth L-shaped waveguide arranged in a ring shape

Methodology Applied
Scientific EffectWaveguide: Waveguide

Data Source

PatentUS10581136B2Three-way power divider and multibeam forming circuit
Publication Date: 2020.03.03 MITSUBISHI ELECTRIC CORP
  • US10581136B2 patent drawing
  • US10581136B2 patent drawing
  • US10581136B2 patent drawing

AI summary

An input waveguide (6) having one end connected between an L-shaped waveguide (1a) and an L-shaped waveguide (1f) and another end connected to the PORT (1); an output waveguide (7) having one end connected between the L-shaped waveguide (1a) and a flat waveguide (1b) and another end connected to the PORT (2); an output waveguide (8) having one end connected between the flat waveguide (1b) and an L-shaped waveguide (1c) and another end connected to the PORT (3); an output waveguide (9) having one end connected between the L-shaped waveguide (1c) and an L-shaped waveguide (1d) and another end connected to the PORT (4); and a plurality of branching waveguides (10) each having one end connected to the output waveguide (7) and another end connected to the output waveguide (8) are provided.